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Smith Automatic Frame Plant">ASME-Landmark:A .O. Smith Automatic Frame Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/A_Handbook_of_Chemical_Engineering" title="A Handbook of Chemical Engineering">A Handbook of Chemical Engineering</a></li> <li><a href="/web/20230326005646/https://ethw.org/A.A._Griffith_publishes_The_Phenomenon_of_Rupture_and_Flow_in_Solids" title="A.A. Griffith publishes The Phenomenon of Rupture and Flow in Solids">A.A. Griffith publishes The Phenomenon of Rupture and Flow in Solids</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:A.B._Wood_Screw_Pump" title="ASME-Landmark:A.B. Wood Screw Pump">ASME-Landmark:A.B. Wood Screw Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:AAR_Railroad-Wheel_Dynamometer" title="ASME-Landmark:AAR Railroad-Wheel Dynamometer">ASME-Landmark:AAR Railroad-Wheel Dynamometer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:ABACUS_II_Integrated-Circuit_Wire_Bonder" title="ASME-Landmark:ABACUS II Integrated-Circuit Wire Bonder">ASME-Landmark:ABACUS II Integrated-Circuit Wire Bonder</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Aberdeen_Range,_Aberdeen_Proving_Ground" title="ASME-Landmark:Aberdeen Range, Aberdeen Proving Ground">ASME-Landmark:Aberdeen Range, Aberdeen Proving Ground</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:AC_Electrification_of_the_New_York,_New_Haven,_%26_Hartford_Railroad" title="ASME-Landmark:AC Electrification of the New York, New Haven, & Hartford Railroad">ASME-Landmark:AC Electrification of the New York, New Haven, & Hartford Railroad</a></li> <li><a href="/web/20230326005646/https://ethw.org/ACE_Computer" title="ACE Computer">ACE Computer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Acequias_of_San_Antonio,_1718-1744" title="ASCE-Landmark:Acequias of San Antonio, 1718-1744">ASCE-Landmark:Acequias of San Antonio, 1718-1744</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Acquedotto_Traiano-Paolo,_109-110" title="ASCE-Landmark:Acquedotto Traiano-Paolo, 109-110">ASCE-Landmark:Acquedotto Traiano-Paolo, 109-110</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Acueduto_de_Queretaro,_1726-1738" title="ASCE-Landmark:Acueduto de Queretaro, 1726-1738">ASCE-Landmark:Acueduto de Queretaro, 1726-1738</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Advanced_Engine_Test_Facility_at_Marshall" title="ASME-Landmark:Advanced Engine Test Facility at Marshall">ASME-Landmark:Advanced Engine Test Facility at Marshall</a></li> <li><a href="/web/20230326005646/https://ethw.org/Agricola_Publishes_De_Re_Metallica" title="Agricola Publishes De Re Metallica">Agricola Publishes De Re Metallica</a></li> <li><a href="/web/20230326005646/https://ethw.org/Air_and_Rain" title="Air and Rain">Air and Rain</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Alaska_Highway,_1942" title="ASCE-Landmark:Alaska Highway, 1942">ASCE-Landmark:Alaska Highway, 1942</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:ALCOA_50,000-Ton_Hydraulic_Forging_Press" title="ASME-Landmark:ALCOA 50,000-Ton Hydraulic Forging Press">ASME-Landmark:ALCOA 50,000-Ton Hydraulic Forging Press</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Alden_Research_Laboratory_Rotating_Boom" title="ASME-Landmark:Alden Research Laboratory Rotating Boom">ASME-Landmark:Alden Research Laboratory Rotating Boom</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Allegheny_Portage_Railroad,_1834" title="ASCE-Landmark:Allegheny Portage Railroad, 1834">ASCE-Landmark:Allegheny Portage Railroad, 1834</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Alligator_Amphibian" title="ASME-Landmark:Alligator Amphibian">ASME-Landmark:Alligator Amphibian</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Alvord_Lake_Bridge,_1889" title="ASCE-Landmark:Alvord Lake Bridge, 1889">ASCE-Landmark:Alvord Lake Bridge, 1889</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:American_Precision_Museum" title="ASME-Landmark:American Precision Museum">ASME-Landmark:American Precision Museum</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ames_Unitary_Plan_Wind_Tunnel" title="ASME-Landmark:Ames Unitary Plan Wind Tunnel">ASME-Landmark:Ames Unitary Plan Wind Tunnel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Anderson-Barngroer_Cont._Rotary_Pressure_Sterilizer" title="ASME-Landmark:Anderson-Barngroer Cont. Rotary Pressure Sterilizer">ASME-Landmark:Anderson-Barngroer Cont. Rotary Pressure Sterilizer</a></li> <li><a href="/web/20230326005646/https://ethw.org/Anton_van_Leeuwenhoek_Develops_Optical_Microscopy" title="Anton van Leeuwenhoek Develops Optical Microscopy">Anton van Leeuwenhoek Develops Optical Microscopy</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Apollo_Lunar_Module_LM-13" title="ASME-Landmark:Apollo Lunar Module LM-13">ASME-Landmark:Apollo Lunar Module LM-13</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Apollo_Space_Command_Module" title="ASME-Landmark:Apollo Space Command Module">ASME-Landmark:Apollo Space Command Module</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Apollo_Space_Suit" title="ASME-Landmark:Apollo Space Suit">ASME-Landmark:Apollo Space Suit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Arc_Lighting" title="Arc Lighting">Arc Lighting</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Archimedes_Screw_Pump" title="ASME-Landmark:Archimedes Screw Pump">ASME-Landmark:Archimedes Screw Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Arecibo_Radiotelescope" title="ASME-Landmark:Arecibo Radiotelescope">ASME-Landmark:Arecibo Radiotelescope</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Armour-Swift-Burlington_Bridge,_1911" title="ASCE-Landmark:Armour-Swift-Burlington Bridge, 1911">ASCE-Landmark:Armour-Swift-Burlington Bridge, 1911</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/Armstrong_Receives_FM_Patents" class="mw-redirect" title="Armstrong Receives FM Patents">Armstrong Receives FM Patents</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/Arne_Olander_discovers_the_shape-memory_effect_in_an_alloy_of_gold_and_cadmium" title="Arne Olander discovers the shape-memory effect in an alloy of gold and cadmium">Arne Olander discovers the shape-memory effect in an alloy of gold and cadmium</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Arnold_AFB_Wind_Tunnel" title="ASME-Landmark:Arnold AFB Wind Tunnel">ASME-Landmark:Arnold AFB Wind Tunnel</a></li> <li><a href="/web/20230326005646/https://ethw.org/Arnold_Sommerfeld_develops_the_free-electron_theory_of_metals" title="Arnold Sommerfeld develops the free-electron theory of metals">Arnold Sommerfeld develops the free-electron theory of metals</a></li> <li><a href="/web/20230326005646/https://ethw.org/ARPANET" title="ARPANET">ARPANET</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Arroyo_Seco_Parkway,_1940" title="ASCE-Landmark:Arroyo Seco Parkway, 1940">ASCE-Landmark:Arroyo Seco Parkway, 1940</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ascutney_Mill_Dam,_1834" title="ASCE-Landmark:Ascutney Mill Dam, 1834">ASCE-Landmark:Ascutney Mill Dam, 1834</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:ASME_Boiler_and_Pressure_Vessel_Code" title="ASME-Landmark:ASME Boiler and Pressure Vessel Code">ASME-Landmark:ASME Boiler and Pressure Vessel Code</a></li> <li><a href="/web/20230326005646/https://ethw.org/Asphalt-water_Emulsion_Soil_Barriers" title="Asphalt-water Emulsion Soil Barriers">Asphalt-water Emulsion Soil Barriers</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Atlantic_City_Municipal_Convention_Center,_1929" title="ASCE-Landmark:Atlantic City Municipal Convention Center, 1929">ASCE-Landmark:Atlantic City Municipal Convention Center, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Atlantic_Coast_Line" title="ASME-Landmark:Atlantic Coast Line">ASME-Landmark:Atlantic Coast Line</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Atlas_Launch_Vehicle" title="ASME-Landmark:Atlas Launch Vehicle">ASME-Landmark:Atlas Launch Vehicle</a></li> <li><a href="/web/20230326005646/https://ethw.org/Audemars_Patents_%E2%80%9CArtificial_Silk%22" title="Audemars Patents “Artificial Silk"">Audemars Patents “Artificial Silk"</a></li> <li><a href="/web/20230326005646/https://ethw.org/De_Forest_Audion" title="De Forest Audion">De Forest Audion</a></li> <li><a href="/web/20230326005646/https://ethw.org/Automotive_Catalytic_Converters" title="Automotive Catalytic Converters">Automotive Catalytic Converters</a></li></ul></div><div class="mw-category-group"><h3>B</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bailey_Island_Bridge,_1928" title="ASCE-Landmark:Bailey Island Bridge, 1928">ASCE-Landmark:Bailey Island Bridge, 1928</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bakelite" title="Bakelite">Bakelite</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Baltimore_%26_Ohio" title="ASME-Landmark:Baltimore & Ohio">ASME-Landmark:Baltimore & Ohio</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Baltimore_%26_Ohio_Railroad_Old_Main_Line" title="ASME-Landmark:Baltimore & Ohio Railroad Old Main Line">ASME-Landmark:Baltimore & Ohio Railroad Old Main Line</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Baltimore_%26_Ohio_Railroad_Roundhouse_%26_Shop_complex,_1842-1850s" title="ASCE-Landmark:Baltimore & Ohio Railroad Roundhouse & Shop complex, 1842-1850s">ASCE-Landmark:Baltimore & Ohio Railroad Roundhouse & Shop complex, 1842-1850s</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bardeen,_Brattain,_Shockley_invent_the_transistor" title="Bardeen, Brattain, Shockley invent the transistor">Bardeen, Brattain, Shockley invent the transistor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Barker_Turbine/Hacienda_Buena_Vista" title="ASME-Landmark:Barker Turbine/Hacienda Buena Vista">ASME-Landmark:Barker Turbine/Hacienda Buena Vista</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Basic-Oxygen_Steel_Making_Vessel" title="ASME-Landmark:Basic-Oxygen Steel Making Vessel">ASME-Landmark:Basic-Oxygen Steel Making Vessel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Batavia_Windmills" title="ASME-Landmark:Batavia Windmills">ASME-Landmark:Batavia Windmills</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Bay_Area_Rapid_Transit_System" title="ASME-Landmark:Bay Area Rapid Transit System">ASME-Landmark:Bay Area Rapid Transit System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Bay_City_Walking_Dredge" title="ASME-Landmark:Bay City Walking Dredge">ASME-Landmark:Bay City Walking Dredge</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bay_of_Campeche" title="Bay of Campeche">Bay of Campeche</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bayonne_Bridge,_1931" title="ASCE-Landmark:Bayonne Bridge, 1931">ASCE-Landmark:Bayonne Bridge, 1931</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bell_Demonstrates_Transistor" title="Bell Demonstrates Transistor">Bell Demonstrates Transistor</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bell_Files_Telephone_Patent" title="Bell Files Telephone Patent">Bell Files Telephone Patent</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bell_Solar_Battery_unveiled" title="Bell Solar Battery unveiled">Bell Solar Battery unveiled</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bell_Utilizes_PCM_Multiplexing" title="Bell Utilizes PCM Multiplexing">Bell Utilizes PCM Multiplexing</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Belle_Fourche_Dam,_1911" title="ASCE-Landmark:Belle Fourche Dam, 1911">ASCE-Landmark:Belle Fourche Dam, 1911</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Belle_Isle_Gas_Turbine" title="ASME-Landmark:Belle Isle Gas Turbine">ASME-Landmark:Belle Isle Gas Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Belle_of_Louisville" title="ASME-Landmark:Belle of Louisville">ASME-Landmark:Belle of Louisville</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Bergen_County_Steam_Collection" title="ASME-Landmark:Bergen County Steam Collection">ASME-Landmark:Bergen County Steam Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/Berger_Publishes_Paper_on_Electroencephalogram" title="Berger Publishes Paper on Electroencephalogram">Berger Publishes Paper on Electroencephalogram</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Bessemer_Conversion_Engine" title="ASME-Landmark:Bessemer Conversion Engine">ASME-Landmark:Bessemer Conversion Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bessemer_patents_a_bottom-blown_acid_process_for_melting_low-carbon_iron" title="Bessemer patents a bottom-blown acid process for melting low-carbon iron">Bessemer patents a bottom-blown acid process for melting low-carbon iron</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bethlehem_Waterworks,_1755" title="ASCE-Landmark:Bethlehem Waterworks, 1755">ASCE-Landmark:Bethlehem Waterworks, 1755</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:BF_Clyde%27s_Cider_Mill" title="ASME-Landmark:BF Clyde's Cider Mill">ASME-Landmark:BF Clyde's Cider Mill</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bidwell_Bar_Suspension_Bridge,_1855" title="ASCE-Landmark:Bidwell Bar Suspension Bridge, 1855">ASCE-Landmark:Bidwell Bar Suspension Bridge, 1855</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Big_Brutus_Mine_Shovel" title="ASME-Landmark:Big Brutus Mine Shovel">ASME-Landmark:Big Brutus Mine Shovel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Big_Surf_Waterpark" title="ASME-Landmark:Big Surf Waterpark">ASME-Landmark:Big Surf Waterpark</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bill_Pfann_invents_zone_refining" title="Bill Pfann invents zone refining">Bill Pfann invents zone refining</a></li> <li><a href="/web/20230326005646/https://ethw.org/Biringuccio_Publishes_De_La_Pirotechnia" title="Biringuccio Publishes De La Pirotechnia">Biringuccio Publishes De La Pirotechnia</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Birome_Ballpoint_Pen_Collection" title="ASME-Landmark:Birome Ballpoint Pen Collection">ASME-Landmark:Birome Ballpoint Pen Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Blenheim_Bridge,_1855" title="ASCE-Landmark:Blenheim Bridge, 1855">ASCE-Landmark:Blenheim Bridge, 1855</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Blimp_Hangars,_1942-1943" title="ASCE-Landmark:Blimp Hangars, 1942-1943">ASCE-Landmark:Blimp Hangars, 1942-1943</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Blood_Heat_Exchanger" title="ASME-Landmark:Blood Heat Exchanger">ASME-Landmark:Blood Heat Exchanger</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Blue_Ridge_Parkway,_1937" title="ASCE-Landmark:Blue Ridge Parkway, 1937">ASCE-Landmark:Blue Ridge Parkway, 1937</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Boeing_367-80" title="ASME-Landmark:Boeing 367-80">ASME-Landmark:Boeing 367-80</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bollman_Truss_Bridge,_1852" title="ASCE-Landmark:Bollman Truss Bridge, 1852">ASCE-Landmark:Bollman Truss Bridge, 1852</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bonneville_Dam,_Columbia_River_Power_%26_Nav_System,_1937" title="ASCE-Landmark:Bonneville Dam, Columbia River Power & Nav System, 1937">ASCE-Landmark:Bonneville Dam, Columbia River Power & Nav System, 1937</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Borden_Base_Line,_1831" title="ASCE-Landmark:Borden Base Line, 1831">ASCE-Landmark:Borden Base Line, 1831</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Boston_Subway,_1897" title="ASCE-Landmark:Boston Subway, 1897">ASCE-Landmark:Boston Subway, 1897</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Boulton_%26_Watt_Rotative_Steam_Engine" title="ASME-Landmark:Boulton & Watt Rotative Steam Engine">ASME-Landmark:Boulton & Watt Rotative Steam Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Boundary_Layer_Between_Surfaces_and_Moving_Fluids" title="Boundary Layer Between Surfaces and Moving Fluids">Boundary Layer Between Surfaces and Moving Fluids</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Boyden_Hydraulic_Turbines" title="ASME-Landmark:Boyden Hydraulic Turbines">ASME-Landmark:Boyden Hydraulic Turbines</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Brandywine_River_Powder_Mills" title="ASME-Landmark:Brandywine River Powder Mills">ASME-Landmark:Brandywine River Powder Mills</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bridgeport_Covered_Bridge,_1862" title="ASCE-Landmark:Bridgeport Covered Bridge, 1862">ASCE-Landmark:Bridgeport Covered Bridge, 1862</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bridges_of_Keeseville,_1821" title="ASCE-Landmark:Bridges of Keeseville, 1821">ASCE-Landmark:Bridges of Keeseville, 1821</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bridges_of_Niagara,_1848_-_1941" title="ASCE-Landmark:Bridges of Niagara, 1848 - 1941">ASCE-Landmark:Bridges of Niagara, 1848 - 1941</a></li> <li><a href="/web/20230326005646/https://ethw.org/Brinell_develops_a_test_to_estimate_the_hardness_of_metals" title="Brinell develops a test to estimate the hardness of metals">Brinell develops a test to estimate the hardness of metals</a></li> <li><a href="/web/20230326005646/https://ethw.org/Bromine_Extraction" title="Bromine Extraction">Bromine Extraction</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Brooklyn_Bridge,_1883" title="ASCE-Landmark:Brooklyn Bridge, 1883">ASCE-Landmark:Brooklyn Bridge, 1883</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Brooks_AFB,_Old_Hanger_9,_1919" title="ASCE-Landmark:Brooks AFB, Old Hanger 9, 1919">ASCE-Landmark:Brooks AFB, Old Hanger 9, 1919</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Browning_Firearms_Collection" title="ASME-Landmark:Browning Firearms Collection">ASME-Landmark:Browning Firearms Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Buckeye_Steam_Traction_Ditcher" title="ASME-Landmark:Buckeye Steam Traction Ditcher">ASME-Landmark:Buckeye Steam Traction Ditcher</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Buffalo_Bill_Dam,_1910" title="ASCE-Landmark:Buffalo Bill Dam, 1910">ASCE-Landmark:Buffalo Bill Dam, 1910</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Bunker_Hill_Covered_Bridge,_1894" title="ASCE-Landmark:Bunker Hill Covered Bridge, 1894">ASCE-Landmark:Bunker Hill Covered Bridge, 1894</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Burton_Farmers_Gin_Mill" title="ASME-Landmark:Burton Farmers Gin Mill">ASME-Landmark:Burton Farmers Gin Mill</a></li> <li><a href="/web/20230326005646/https://ethw.org/Butyl_Rubber" title="Butyl Rubber">Butyl Rubber</a></li></ul></div><div class="mw-category-group"><h3>C</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cabin_John_Aqueduct,_1857-1862" title="ASCE-Landmark:Cabin John Aqueduct, 1857-1862">ASCE-Landmark:Cabin John Aqueduct, 1857-1862</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cabs_and_Canopies" title="Cabs and Canopies">Cabs and Canopies</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Caledonian_Canal,_1804-1822" title="ASCE-Landmark:Caledonian Canal, 1804-1822">ASCE-Landmark:Caledonian Canal, 1804-1822</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cambridge_Instruments_introduces_a_commercial_scanning_electron_microscope" title="Cambridge Instruments introduces a commercial scanning electron microscope">Cambridge Instruments introduces a commercial scanning electron microscope</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Canton_Viaduct,_1835" title="ASCE-Landmark:Canton Viaduct, 1835">ASCE-Landmark:Canton Viaduct, 1835</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cape_Cod_Canal,_1909-1914" title="ASCE-Landmark:Cape Cod Canal, 1909-1914">ASCE-Landmark:Cape Cod Canal, 1909-1914</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cape_Hatteras_Lighthouse,_1870" title="ASCE-Landmark:Cape Hatteras Lighthouse, 1870">ASCE-Landmark:Cape Hatteras Lighthouse, 1870</a></li> <li><a href="/web/20230326005646/https://ethw.org/Carbon_Transmitter" title="Carbon Transmitter">Carbon Transmitter</a></li> <li><a href="/web/20230326005646/https://ethw.org/Carbon-free_Processes" title="Carbon-free Processes">Carbon-free Processes</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Carrollton_Viaduct,_1829" title="ASCE-Landmark:Carrollton Viaduct, 1829">ASCE-Landmark:Carrollton Viaduct, 1829</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Castillo_De_San_Marcos,_1672-1695" title="ASCE-Landmark:Castillo De San Marcos, 1672-1695">ASCE-Landmark:Castillo De San Marcos, 1672-1695</a></li> <li><a href="/web/20230326005646/https://ethw.org/Catalysis" title="Catalysis">Catalysis</a></li> <li><a href="/web/20230326005646/https://ethw.org/Catalytic_Cracking" title="Catalytic Cracking">Catalytic Cracking</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cavity_Magnetron" title="Cavity Magnetron">Cavity Magnetron</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cedar_Falls_Water_Supply,_1902-1905" title="ASCE-Landmark:Cedar Falls Water Supply, 1902-1905">ASCE-Landmark:Cedar Falls Water Supply, 1902-1905</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Central_Pacific_Railroad,_1869" title="ASCE-Landmark:Central Pacific Railroad, 1869">ASCE-Landmark:Central Pacific Railroad, 1869</a></li> <li><a href="/web/20230326005646/https://ethw.org/CERN_Creates_World_Wide_Web" title="CERN Creates World Wide Web">CERN Creates World Wide Web</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Chain_of_Rocks_Water_Purification_Plant,_1886-1915" title="ASCE-Landmark:Chain of Rocks Water Purification Plant, 1886-1915">ASCE-Landmark:Chain of Rocks Water Purification Plant, 1886-1915</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Chapin_Mine_Pump" title="ASME-Landmark:Chapin Mine Pump">ASME-Landmark:Chapin Mine Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/Charge-Coupled_Device" title="Charge-Coupled Device">Charge-Coupled Device</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Charles_River_Basin_Project,_1910" title="ASCE-Landmark:Charles River Basin Project, 1910">ASCE-Landmark:Charles River Basin Project, 1910</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Charleston-Hamburg_Railroad,_1833" title="ASCE-Landmark:Charleston-Hamburg Railroad, 1833">ASCE-Landmark:Charleston-Hamburg Railroad, 1833</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cheesman_Dam,_1905" title="ASCE-Landmark:Cheesman Dam, 1905">ASCE-Landmark:Cheesman Dam, 1905</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Chesapeake_%26_Delaware_Canal_Scoop_Wheel_%26_Engines" title="ASME-Landmark:Chesapeake & Delaware Canal Scoop Wheel & Engines">ASME-Landmark:Chesapeake & Delaware Canal Scoop Wheel & Engines</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Chesapeake_%26_Delaware_Canal,_1829" title="ASCE-Landmark:Chesapeake & Delaware Canal, 1829">ASCE-Landmark:Chesapeake & Delaware Canal, 1829</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Chesbrough%27s_Chicago_Water_Supply_system,_1864-1869" title="ASCE-Landmark:Chesbrough's Chicago Water Supply system, 1864-1869">ASCE-Landmark:Chesbrough's Chicago Water Supply system, 1864-1869</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Chestnut_Street_Pumping_Engine" title="ASME-Landmark:Chestnut Street Pumping Engine">ASME-Landmark:Chestnut Street Pumping Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Chicago_Burlington_%26_Quincy_Railroad_Roundhouse" title="ASME-Landmark:Chicago Burlington & Quincy Railroad Roundhouse">ASME-Landmark:Chicago Burlington & Quincy Railroad Roundhouse</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Childs-Irving_Hydroelectric_Project" title="ASME-Landmark:Childs-Irving Hydroelectric Project">ASME-Landmark:Childs-Irving Hydroelectric Project</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Choate_Bridge,_1764" title="ASCE-Landmark:Choate Bridge, 1764">ASCE-Landmark:Choate Bridge, 1764</a></li> <li><a href="/web/20230326005646/https://ethw.org/Chromatography" title="Chromatography">Chromatography</a></li> <li><a href="/web/20230326005646/https://ethw.org/Chromium_Plating" title="Chromium Plating">Chromium Plating</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:City_Plan_of_Philadelphia,_1682" title="ASCE-Landmark:City Plan of Philadelphia, 1682">ASCE-Landmark:City Plan of Philadelphia, 1682</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:City_Plan_of_Savannah,_1733" title="ASCE-Landmark:City Plan of Savannah, 1733">ASCE-Landmark:City Plan of Savannah, 1733</a></li> <li><a href="/web/20230326005646/https://ethw.org/Clarke_Suggests_Geosynchronous_Orbit" title="Clarke Suggests Geosynchronous Orbit">Clarke Suggests Geosynchronous Orbit</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cleveland_Hopkins_Airport,_1925" title="ASCE-Landmark:Cleveland Hopkins Airport, 1925">ASCE-Landmark:Cleveland Hopkins Airport, 1925</a></li> <li><a href="/web/20230326005646/https://ethw.org/CMOS" title="CMOS">CMOS</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cognac_Platform" title="Cognac Platform">Cognac Platform</a></li> <li><a href="/web/20230326005646/https://ethw.org/Coherer" title="Coherer">Coherer</a></li> <li><a href="/web/20230326005646/https://ethw.org/Coiled_Tubing_Unit" title="Coiled Tubing Unit">Coiled Tubing Unit</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Colorado_River_Aqueduct,_1933-1941" title="ASCE-Landmark:Colorado River Aqueduct, 1933-1941">ASCE-Landmark:Colorado River Aqueduct, 1933-1941</a></li> <li><a href="/web/20230326005646/https://ethw.org/Colossus" title="Colossus">Colossus</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Columbia_(Old)_River_Scenic_Highway,_1913_-_1922" title="ASCE-Landmark:Columbia (Old) River Scenic Highway, 1913 - 1922">ASCE-Landmark:Columbia (Old) River Scenic Highway, 1913 - 1922</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Columbia-Wrightsville_Bridge,_1930" title="ASCE-Landmark:Columbia-Wrightsville Bridge, 1930">ASCE-Landmark:Columbia-Wrightsville Bridge, 1930</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Colvin_Run_Mill" title="ASME-Landmark:Colvin Run Mill">ASME-Landmark:Colvin Run Mill</a></li> <li><a href="/web/20230326005646/https://ethw.org/Commercially_Viable_Streetcar" title="Commercially Viable Streetcar">Commercially Viable Streetcar</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Commonwealth_Building_Heat_Pump" title="ASME-Landmark:Commonwealth Building Heat Pump">ASME-Landmark:Commonwealth Building Heat Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/Communications_Satellites" title="Communications Satellites">Communications Satellites</a></li> <li><a href="/web/20230326005646/https://ethw.org/Computer_Language_Compiler" title="Computer Language Compiler">Computer Language Compiler</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/Computer_Virus_Infects_PCs" class="mw-redirect" title="Computer Virus Infects PCs">Computer Virus Infects PCs</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/Continuous_Catalytic_Cracking" title="Continuous Catalytic Cracking">Continuous Catalytic Cracking</a></li> <li><a href="/web/20230326005646/https://ethw.org/Continuous_Thermal_Cracking" title="Continuous Thermal Cracking">Continuous Thermal Cracking</a></li> <li><a href="/web/20230326005646/https://ethw.org/Continuous-flow_Stirred-tank_Plug-flow_Equations" title="Continuous-flow Stirred-tank Plug-flow Equations">Continuous-flow Stirred-tank Plug-flow Equations</a></li> <li><a href="/web/20230326005646/https://ethw.org/Controlled_Directional_Drilling" title="Controlled Directional Drilling">Controlled Directional Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/Conversion_of_Aniline" title="Conversion of Aniline">Conversion of Aniline</a></li> <li><a href="/web/20230326005646/https://ethw.org/Conversion_of_Natural_Gas_to_Methanol" title="Conversion of Natural Gas to Methanol">Conversion of Natural Gas to Methanol</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Conwy_Suspension_Bridge,_1826" title="ASCE-Landmark:Conwy Suspension Bridge, 1826">ASCE-Landmark:Conwy Suspension Bridge, 1826</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Conwy_Tubular_Bridge,_1848" title="ASCE-Landmark:Conwy Tubular Bridge, 1848">ASCE-Landmark:Conwy Tubular Bridge, 1848</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cooke_and_Wheatstone%27s_Electric_Telegraph" title="Cooke and Wheatstone's Electric Telegraph">Cooke and Wheatstone's Electric Telegraph</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Coolspring_Power_Museum" title="ASME-Landmark:Coolspring Power Museum">ASME-Landmark:Coolspring Power Museum</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cooper_Steam_Traction_Engine_Collection" title="ASME-Landmark:Cooper Steam Traction Engine Collection">ASME-Landmark:Cooper Steam Traction Engine Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cooper-Bessemer_Type_GMV_Integral-Angle_Gas_Engine-Compressor" title="ASME-Landmark:Cooper-Bessemer Type GMV Integral-Angle Gas Engine-Compressor">ASME-Landmark:Cooper-Bessemer Type GMV Integral-Angle Gas Engine-Compressor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cooperative_Fuel_Research_Engine" title="ASME-Landmark:Cooperative Fuel Research Engine">ASME-Landmark:Cooperative Fuel Research Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cordura" title="Cordura">Cordura</a></li> <li><a href="/web/20230326005646/https://ethw.org/Cornelius_H._Keller_patents_alkyl_xanthates_sulfide_collectors" title="Cornelius H. Keller patents alkyl xanthates sulfide collectors">Cornelius H. Keller patents alkyl xanthates sulfide collectors</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Corning_Ribbon_Machine" title="ASME-Landmark:Corning Ribbon Machine">ASME-Landmark:Corning Ribbon Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cornish-Windsor_Covered_Bridge,_1866" title="ASCE-Landmark:Cornish-Windsor Covered Bridge, 1866">ASCE-Landmark:Cornish-Windsor Covered Bridge, 1866</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cornwall_Iron_Furnace" title="ASME-Landmark:Cornwall Iron Furnace">ASME-Landmark:Cornwall Iron Furnace</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Courtland_Street_Drawbridge,_1902" title="ASCE-Landmark:Courtland Street Drawbridge, 1902">ASCE-Landmark:Courtland Street Drawbridge, 1902</a></li> <li><a href="/web/20230326005646/https://ethw.org/Crafting_of_the_First_Porcelain" title="Crafting of the First Porcelain">Crafting of the First Porcelain</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Craigellachie_Bridge,_1814" title="ASCE-Landmark:Craigellachie Bridge, 1814">ASCE-Landmark:Craigellachie Bridge, 1814</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cranetown_Triangulation_Site,_1817" title="ASCE-Landmark:Cranetown Triangulation Site, 1817">ASCE-Landmark:Cranetown Triangulation Site, 1817</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Crawler_Transporters_of_Launch_Complex_39" title="ASME-Landmark:Crawler Transporters of Launch Complex 39">ASME-Landmark:Crawler Transporters of Launch Complex 39</a></li> <li><a href="/web/20230326005646/https://ethw.org/Creation_of_an_artifact_of_long-standing_materials_science_and_archaeological_intrigue" title="Creation of an artifact of long-standing materials science and archaeological intrigue">Creation of an artifact of long-standing materials science and archaeological intrigue</a></li> <li><a href="/web/20230326005646/https://ethw.org/Creation_of_superconducting_yttrium-barium-copper_oxide_ceramic" title="Creation of superconducting yttrium-barium-copper oxide ceramic">Creation of superconducting yttrium-barium-copper oxide ceramic</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Creusot_Steam_Hammer" title="ASME-Landmark:Creusot Steam Hammer">ASME-Landmark:Creusot Steam Hammer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Croton_Water_Supply_Systems,_1837-1842" title="ASCE-Landmark:Croton Water Supply Systems, 1837-1842">ASCE-Landmark:Croton Water Supply Systems, 1837-1842</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Crown_Cork_and_Soda_Filling_Machine" title="ASME-Landmark:Crown Cork and Soda Filling Machine">ASME-Landmark:Crown Cork and Soda Filling Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Crozet%27s_Blue_Ridge_Tunnel,_1858" title="ASCE-Landmark:Crozet's Blue Ridge Tunnel, 1858">ASCE-Landmark:Crozet's Blue Ridge Tunnel, 1858</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cruquius_Pumping_Station" title="ASME-Landmark:Cruquius Pumping Station">ASME-Landmark:Cruquius Pumping Station</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Cryogenic_Cooling_System,_Fermilab_Tevatron" title="ASME-Landmark:Cryogenic Cooling System, Fermilab Tevatron">ASME-Landmark:Cryogenic Cooling System, Fermilab Tevatron</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Cumbres_and_Toltec_Scenic_Railway,_1880" title="ASCE-Landmark:Cumbres and Toltec Scenic Railway, 1880">ASCE-Landmark:Cumbres and Toltec Scenic Railway, 1880</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Curtis_500-kW_Vertical_Turbine" title="ASME-Landmark:Curtis 500-kW Vertical Turbine">ASME-Landmark:Curtis 500-kW Vertical Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Curtis_5000-kW_Vertical_Turbine" title="ASME-Landmark:Curtis 5000-kW Vertical Turbine">ASME-Landmark:Curtis 5000-kW Vertical Turbine</a></li></ul></div><div class="mw-category-group"><h3>D</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/Daniell_Cell" title="Daniell Cell">Daniell Cell</a></li> <li><a href="/web/20230326005646/https://ethw.org/Darby_discovers_that_coke_can_effectively_replace_charcoal_in_a_blast_furnace_for_iron_smelting" title="Darby discovers that coke can effectively replace charcoal in a blast furnace for iron smelting">Darby discovers that coke can effectively replace charcoal in a blast furnace for iron smelting</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:David_Taylor_Model_Basin" title="ASME-Landmark:David Taylor Model Basin">ASME-Landmark:David Taylor Model Basin</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Davis_Island_Lock_%26_Dam,_1878-1885" title="ASCE-Landmark:Davis Island Lock & Dam, 1878-1885">ASCE-Landmark:Davis Island Lock & Dam, 1878-1885</a></li> <li><a href="/web/20230326005646/https://ethw.org/Davisson_and_Germer_confirm_wave_nature_of_electron" title="Davisson and Germer confirm wave nature of electron">Davisson and Germer confirm wave nature of electron</a></li> <li><a href="/web/20230326005646/https://ethw.org/Deep_Drilling" title="Deep Drilling">Deep Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/Deepwater_Coring" title="Deepwater Coring">Deepwater Coring</a></li> <li><a href="/web/20230326005646/https://ethw.org/Deepwater_Mining" title="Deepwater Mining">Deepwater Mining</a></li> <li><a href="/web/20230326005646/https://ethw.org/Deepwater_Re-entry" title="Deepwater Re-entry">Deepwater Re-entry</a></li> <li><a href="/web/20230326005646/https://ethw.org/Defibrillator" title="Defibrillator">Defibrillator</a></li> <li><a href="/web/20230326005646/https://ethw.org/Definition_of_Chemical_Engineering" title="Definition of Chemical Engineering">Definition of Chemical Engineering</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Denison_Dam,_1943" title="ASCE-Landmark:Denison Dam, 1943">ASCE-Landmark:Denison Dam, 1943</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Detroit_Edison_District_Heating_System" title="ASME-Landmark:Detroit Edison District Heating System">ASME-Landmark:Detroit Edison District Heating System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Detroit-Windsor_Tunnel,_1930" title="ASCE-Landmark:Detroit-Windsor Tunnel, 1930">ASCE-Landmark:Detroit-Windsor Tunnel, 1930</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_Dental_Amalgam" title="Development Dental Amalgam">Development Dental Amalgam</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_bioactive_glass_for_orthopedic_use" title="Development of bioactive glass for orthopedic use">Development of bioactive glass for orthopedic use</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Crucible_Steel_Making" title="Development of Crucible Steel Making">Development of Crucible Steel Making</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Glass_Blowing" title="Development of Glass Blowing">Development of Glass Blowing</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Iron_Casting" title="Development of Iron Casting">Development of Iron Casting</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Iron_Wire_Rope" title="Development of Iron Wire Rope">Development of Iron Wire Rope</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Lost-wax_Casting" title="Development of Lost-wax Casting">Development of Lost-wax Casting</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_Metals_Processing_Method_for_Separating_Silver_from_Lead_and_Copper" title="Development of Metals Processing Method for Separating Silver from Lead and Copper">Development of Metals Processing Method for Separating Silver from Lead and Copper</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_the_process_of_electrolysis_to_separate_elemental_metals_from_salts" title="Development of the process of electrolysis to separate elemental metals from salts">Development of the process of electrolysis to separate elemental metals from salts</a></li> <li><a href="/web/20230326005646/https://ethw.org/Development_of_the_Siemens-Martin_Open-hearth_Furnace_Process" title="Development of the Siemens-Martin Open-hearth Furnace Process">Development of the Siemens-Martin Open-hearth Furnace Process</a></li> <li><a href="/web/20230326005646/https://ethw.org/Difference_Engine" title="Difference Engine">Difference Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Diffuse_streaking_in_age-hardened_aluminum-copper_alloys_observed" title="Diffuse streaking in age-hardened aluminum-copper alloys observed">Diffuse streaking in age-hardened aluminum-copper alloys observed</a></li> <li><a href="/web/20230326005646/https://ethw.org/Digital_Dipmeter_Logs" title="Digital Dipmeter Logs">Digital Dipmeter Logs</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Digital_Micromirror_Device" title="ASME-Landmark:Digital Micromirror Device">ASME-Landmark:Digital Micromirror Device</a></li> <li><a href="/web/20230326005646/https://ethw.org/Directionally_solidified_columnar-grained_turbine_blade_developed" title="Directionally solidified columnar-grained turbine blade developed">Directionally solidified columnar-grained turbine blade developed</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_buckyballs" title="Discovery of buckyballs">Discovery of buckyballs</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_Diffraction_of_X-rays_by_Crystals" title="Discovery of Diffraction of X-rays by Crystals">Discovery of Diffraction of X-rays by Crystals</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_electrically_conducting_organic_polymers" title="Discovery of electrically conducting organic polymers">Discovery of electrically conducting organic polymers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_Extractive_Metallurgy" title="Discovery of Extractive Metallurgy">Discovery of Extractive Metallurgy</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_magneto-crystalline_anisotropy_in_rare-earth_cobalt_intermetallic_compounds" title="Discovery of magneto-crystalline anisotropy in rare-earth cobalt intermetallic compounds">Discovery of magneto-crystalline anisotropy in rare-earth cobalt intermetallic compounds</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_Mass-2_Hydrogen" title="Discovery of Mass-2 Hydrogen">Discovery of Mass-2 Hydrogen</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_nanotubes" title="Discovery of nanotubes">Discovery of nanotubes</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_process_to_transform_glass_objects_into_fine-grained_ceramics" title="Discovery of process to transform glass objects into fine-grained ceramics">Discovery of process to transform glass objects into fine-grained ceramics</a></li> <li><a href="/web/20230326005646/https://ethw.org/Discovery_of_the_electrolytic_reduction_of_alumina_into_aluminum" title="Discovery of the electrolytic reduction of alumina into aluminum">Discovery of the electrolytic reduction of alumina into aluminum</a></li> <li><a href="/web/20230326005646/https://ethw.org/Dislocations_in_materials_verified" title="Dislocations in materials verified">Dislocations in materials verified</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Dismal_Swamp_Canal,_1793-1805" title="ASCE-Landmark:Dismal Swamp Canal, 1793-1805">ASCE-Landmark:Dismal Swamp Canal, 1793-1805</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Disneyland_Monorail_System" title="ASME-Landmark:Disneyland Monorail System">ASME-Landmark:Disneyland Monorail System</a></li> <li><a href="/web/20230326005646/https://ethw.org/Disposable_Paper_Diaper" title="Disposable Paper Diaper">Disposable Paper Diaper</a></li> <li><a href="/web/20230326005646/https://ethw.org/Dissolvable_Plastic_Wafers" title="Dissolvable Plastic Wafers">Dissolvable Plastic Wafers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Distributed_Networks" title="Distributed Networks">Distributed Networks</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ditch_Witch_DWP_Service-Line_Trencher" title="ASME-Landmark:Ditch Witch DWP Service-Line Trencher">ASME-Landmark:Ditch Witch DWP Service-Line Trencher</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Dorton_Arena,_1952" title="ASCE-Landmark:Dorton Arena, 1952">ASCE-Landmark:Dorton Arena, 1952</a></li> <li><a href="/web/20230326005646/https://ethw.org/Dow_Receives_First_Patent" title="Dow Receives First Patent">Dow Receives First Patent</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Drake_Oil_Well" title="ASME-Landmark:Drake Oil Well">ASME-Landmark:Drake Oil Well</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Druid_Lake_Dam,_1871" title="ASCE-Landmark:Druid Lake Dam, 1871">ASCE-Landmark:Druid Lake Dam, 1871</a></li> <li><a href="/web/20230326005646/https://ethw.org/Dry_Cell_Battery" title="Dry Cell Battery">Dry Cell Battery</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Dublin-Belfast_Rail_Link,_1855" title="ASCE-Landmark:Dublin-Belfast Rail Link, 1855">ASCE-Landmark:Dublin-Belfast Rail Link, 1855</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Duck_Creek_Aqueduct,_1847" title="ASCE-Landmark:Duck Creek Aqueduct, 1847">ASCE-Landmark:Duck Creek Aqueduct, 1847</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Dunlap%27s_Creek_Bridge,_1838" title="ASCE-Landmark:Dunlap's Creek Bridge, 1838">ASCE-Landmark:Dunlap's Creek Bridge, 1838</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Duquesne_Incline" title="ASME-Landmark:Duquesne Incline">ASME-Landmark:Duquesne Incline</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Durango-Silverton_Narrow_Gauge_Br_of_the_D%26RGWR,_1882" title="ASCE-Landmark:Durango-Silverton Narrow Gauge Br of the D&RGWR, 1882">ASCE-Landmark:Durango-Silverton Narrow Gauge Br of the D&RGWR, 1882</a></li></ul></div><div class="mw-category-group"><h3>E</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Eads_Bridge,_1874" title="ASCE-Landmark:Eads Bridge, 1874">ASCE-Landmark:Eads Bridge, 1874</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Eads_South_Pass_Navigation_Works,_1875-1879" title="ASCE-Landmark:Eads South Pass Navigation Works, 1875-1879">ASCE-Landmark:Eads South Pass Navigation Works, 1875-1879</a></li> <li><a href="/web/20230326005646/https://ethw.org/Earliest_Fired_Ceramics" title="Earliest Fired Ceramics">Earliest Fired Ceramics</a></li> <li><a href="/web/20230326005646/https://ethw.org/Earliest_Form_of_Metallurgy" title="Earliest Form of Metallurgy">Earliest Form of Metallurgy</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:East_Maui_Irrigation_System,_1876-1923" title="ASCE-Landmark:East Maui Irrigation System, 1876-1923">ASCE-Landmark:East Maui Irrigation System, 1876-1923</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:East_Wells_(Onieda)_Street_Power_Plant" title="ASME-Landmark:East Wells (Onieda) Street Power Plant">ASME-Landmark:East Wells (Onieda) Street Power Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ecole_Nationale_des_Ponts_et_Chaussees,_1747" title="ASCE-Landmark:Ecole Nationale des Ponts et Chaussees, 1747">ASCE-Landmark:Ecole Nationale des Ponts et Chaussees, 1747</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Eddystone_Lighthouse,_1698-1882" title="ASCE-Landmark:Eddystone Lighthouse, 1698-1882">ASCE-Landmark:Eddystone Lighthouse, 1698-1882</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Eddystone_Station_Unit" title="ASME-Landmark:Eddystone Station Unit">ASME-Landmark:Eddystone Station Unit</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Edgar_Station,_Edison_Electric_Illuminating_Co." title="ASME-Landmark:Edgar Station, Edison Electric Illuminating Co.">ASME-Landmark:Edgar Station, Edison Electric Illuminating Co.</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Edison_%22Jumbo%22_Engine-Driver_Dynamo" title="ASME-Landmark:Edison "Jumbo" Engine-Driver Dynamo">ASME-Landmark:Edison "Jumbo" Engine-Driver Dynamo</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Edison_Experimental_Recording_Phonograph" title="ASME-Landmark:Edison Experimental Recording Phonograph">ASME-Landmark:Edison Experimental Recording Phonograph</a></li> <li><a href="/web/20230326005646/https://ethw.org/Edison%27s_Incandescent_Lamp" title="Edison's Incandescent Lamp">Edison's Incandescent Lamp</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Eiffel_1903_Drop_Test_Machine_and_1912_Wind_Tunnel" title="ASME-Landmark:Eiffel 1903 Drop Test Machine and 1912 Wind Tunnel">ASME-Landmark:Eiffel 1903 Drop Test Machine and 1912 Wind Tunnel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Eiffel_Tower,_1889" title="ASCE-Landmark:Eiffel Tower, 1889">ASCE-Landmark:Eiffel Tower, 1889</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:EIMCO_Rocker_Shovel_Loader,_Model_12B" title="ASME-Landmark:EIMCO Rocker Shovel Loader, Model 12B">ASME-Landmark:EIMCO Rocker Shovel Loader, Model 12B</a></li> <li><a href="/web/20230326005646/https://ethw.org/EKGs_and_EEGs" title="EKGs and EEGs">EKGs and EEGs</a></li> <li><a href="/web/20230326005646/https://ethw.org/Ekofisk" title="Ekofisk">Ekofisk</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:El_Camino_Real_-_Eastern_Branch,_1500s" title="ASCE-Landmark:El Camino Real - Eastern Branch, 1500s">ASCE-Landmark:El Camino Real - Eastern Branch, 1500s</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:El_Camino_Real_-_The_Royal_Road,_1500s" title="ASCE-Landmark:El Camino Real - The Royal Road, 1500s">ASCE-Landmark:El Camino Real - The Royal Road, 1500s</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electric_cap_lamp_approved_by_U.S._Bureau_of_Mines" title="Electric cap lamp approved by U.S. Bureau of Mines">Electric cap lamp approved by U.S. Bureau of Mines</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electric_Guitar" title="Electric Guitar">Electric Guitar</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electric_Meter" title="Electric Meter">Electric Meter</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electric_Motor" title="Electric Motor">Electric Motor</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electrical_Logging" title="Electrical Logging">Electrical Logging</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electrical_Submersible_Pump" title="Electrical Submersible Pump">Electrical Submersible Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electrically_Powered_Ventilation_Fans" title="Electrically Powered Ventilation Fans">Electrically Powered Ventilation Fans</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electricity_%26_Life" title="Electricity & Life">Electricity & Life</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Electro-Motive_FT_Freight-Service_Diesel-Electric_Locomotive" title="ASME-Landmark:Electro-Motive FT Freight-Service Diesel-Electric Locomotive">ASME-Landmark:Electro-Motive FT Freight-Service Diesel-Electric Locomotive</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electrolytic_Reduction_of_Aluminum" title="Electrolytic Reduction of Aluminum">Electrolytic Reduction of Aluminum</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electromagnetic_Waves" title="Electromagnetic Waves">Electromagnetic Waves</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electromagnets" title="Electromagnets">Electromagnets</a></li> <li><a href="/web/20230326005646/https://ethw.org/Electronic_Music_Synthesizer" title="Electronic Music Synthesizer">Electronic Music Synthesizer</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/Electronic-Digital_Computer" class="mw-redirect" title="Electronic-Digital Computer">Electronic-Digital Computer</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/Electrostatic_Generator" title="Electrostatic Generator">Electrostatic Generator</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Elephant_Butte_Dam,_1916" title="ASCE-Landmark:Elephant Butte Dam, 1916">ASCE-Landmark:Elephant Butte Dam, 1916</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ellicott_Stone,_1799" title="ASCE-Landmark:Ellicott Stone, 1799">ASCE-Landmark:Ellicott Stone, 1799</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Embudo,_New_Mexico_Stream_Guaging_station,_1888" title="ASCE-Landmark:Embudo, New Mexico Stream Guaging station, 1888">ASCE-Landmark:Embudo, New Mexico Stream Guaging station, 1888</a></li> <li><a href="/web/20230326005646/https://ethw.org/Energy_Efficient_Syn%C2%ADthetic_Motor_Oil" title="Energy Efficient Synthetic Motor Oil">Energy Efficient Synthetic Motor Oil</a></li> <li><a href="/web/20230326005646/https://ethw.org/ENIAC" title="ENIAC">ENIAC</a></li> <li><a href="/web/20230326005646/https://ethw.org/Enriched_Uranium" title="Enriched Uranium">Enriched Uranium</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Erie_Canal,_1825" title="ASCE-Landmark:Erie Canal, 1825">ASCE-Landmark:Erie Canal, 1825</a></li> <li><a href="/web/20230326005646/https://ethw.org/Ether_as_Surgical_Anesthetic" title="Ether as Surgical Anesthetic">Ether as Surgical Anesthetic</a></li> <li><a href="/web/20230326005646/https://ethw.org/Ethernet" title="Ethernet">Ethernet</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Evinrude_Outboard_Motor" title="ASME-Landmark:Evinrude Outboard Motor">ASME-Landmark:Evinrude Outboard Motor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Experimental_Breeder_Reactor_I" title="ASME-Landmark:Experimental Breeder Reactor I">ASME-Landmark:Experimental Breeder Reactor I</a></li> <li><a href="/web/20230326005646/https://ethw.org/Explosives_Plant_on_Brandywine_River" title="Explosives Plant on Brandywine River">Explosives Plant on Brandywine River</a></li></ul></div><div class="mw-category-group"><h3>F</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Fairbanks_Exploration_Company_Gold_Dredge_No._8" title="ASME-Landmark:Fairbanks Exploration Company Gold Dredge No. 8">ASME-Landmark:Fairbanks Exploration Company Gold Dredge No. 8</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Fairbanks-Morse_Y-VA_Engine_Diesel" title="ASME-Landmark:Fairbanks-Morse Y-VA Engine Diesel">ASME-Landmark:Fairbanks-Morse Y-VA Engine Diesel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Fairmont_Water_Works" title="ASME-Landmark:Fairmont Water Works">ASME-Landmark:Fairmont Water Works</a></li> <li><a href="/web/20230326005646/https://ethw.org/Federal_Coal_Mine_Health_and_Safety_Act_of_1969,_The" title="Federal Coal Mine Health and Safety Act of 1969, The">Federal Coal Mine Health and Safety Act of 1969, The</a></li> <li><a href="/web/20230326005646/https://ethw.org/Federal_Coal_Mine_Safety_Act_of_1952,_The" title="Federal Coal Mine Safety Act of 1952, The">Federal Coal Mine Safety Act of 1952, The</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ferries_%26_Cliffhouse_Cable_Railway_Power_House" title="ASME-Landmark:Ferries & Cliffhouse Cable Railway Power House">ASME-Landmark:Ferries & Cliffhouse Cable Railway Power House</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fiber_Optics" title="Fiber Optics">Fiber Optics</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Fink_Deck_Truss_Bridge,_1870" title="ASCE-Landmark:Fink Deck Truss Bridge, 1870">ASCE-Landmark:Fink Deck Truss Bridge, 1870</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Fink_Through_Truss_Bridge,_1858" title="ASCE-Landmark:Fink Through Truss Bridge, 1858">ASCE-Landmark:Fink Through Truss Bridge, 1858</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_artificial_diamonds_by_using_high_heat_and_pressure_produced" title="First artificial diamonds by using high heat and pressure produced">First artificial diamonds by using high heat and pressure produced</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_careful_definition_of_stress_as_the_load_per_unit_area_of_the_cross_section_of_a_material" title="First careful definition of stress as the load per unit area of the cross section of a material">First careful definition of stress as the load per unit area of the cross section of a material</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:First_Concrete_Pavement,_1893" title="ASCE-Landmark:First Concrete Pavement, 1893">ASCE-Landmark:First Concrete Pavement, 1893</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_Glue_Patent_Issued" title="First Glue Patent Issued">First Glue Patent Issued</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:First_Hot_Isostatic_Processing_Vessels" title="ASME-Landmark:First Hot Isostatic Processing Vessels">ASME-Landmark:First Hot Isostatic Processing Vessels</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:First_New_York_Subway,_1904" title="ASCE-Landmark:First New York Subway, 1904">ASCE-Landmark:First New York Subway, 1904</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_Oil_Tanker" title="First Oil Tanker">First Oil Tanker</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_operating_liquid_crystal_displays" title="First operating liquid crystal displays">First operating liquid crystal displays</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:First_Owens_River-Los_Angeles_Aqueduct,_1907-1913" title="ASCE-Landmark:First Owens River-Los Angeles Aqueduct, 1907-1913">ASCE-Landmark:First Owens River-Los Angeles Aqueduct, 1907-1913</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_Production_of_Bronze" title="First Production of Bronze">First Production of Bronze</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:First_Ram-Type_Blowout_Preventer_(BOP)" title="ASME-Landmark:First Ram-Type Blowout Preventer (BOP)">ASME-Landmark:First Ram-Type Blowout Preventer (BOP)</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_Smelting_of_Iron" title="First Smelting of Iron">First Smelting of Iron</a></li> <li><a href="/web/20230326005646/https://ethw.org/First_Telephone_Repeater" title="First Telephone Repeater">First Telephone Repeater</a></li> <li><a href="/web/20230326005646/https://ethw.org/First-generation_Alkyl_Metal_Catalysts" title="First-generation Alkyl Metal Catalysts">First-generation Alkyl Metal Catalysts</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Firth_of_Forth_Railway_Bridge,_1890" title="ASCE-Landmark:Firth of Forth Railway Bridge, 1890">ASCE-Landmark:Firth of Forth Railway Bridge, 1890</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Five_Stone_Arch_Bridges,_1830_-_1860" title="ASCE-Landmark:Five Stone Arch Bridges, 1830 - 1860">ASCE-Landmark:Five Stone Arch Bridges, 1830 - 1860</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fleming_Valve" title="Fleming Valve">Fleming Valve</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Flight_of_Five_Locks,_1915" title="ASCE-Landmark:Flight of Five Locks, 1915">ASCE-Landmark:Flight of Five Locks, 1915</a></li> <li><a href="/web/20230326005646/https://ethw.org/FLIT" title="FLIT">FLIT</a></li> <li><a href="/web/20230326005646/https://ethw.org/Floating_Production_Storage" title="Floating Production Storage">Floating Production Storage</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fluid-bed_Catalytic_Process" title="Fluid-bed Catalytic Process">Fluid-bed Catalytic Process</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:FMC_Citrus_Juice_Extractor" title="ASME-Landmark:FMC Citrus Juice Extractor">ASME-Landmark:FMC Citrus Juice Extractor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Folsom_Hydroelectric_Power_System,_1895" title="ASCE-Landmark:Folsom Hydroelectric Power System, 1895">ASCE-Landmark:Folsom Hydroelectric Power System, 1895</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Folsom_Power_House" title="ASME-Landmark:Folsom Power House">ASME-Landmark:Folsom Power House</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Fort_Peck_Dam,_1940" title="ASCE-Landmark:Fort Peck Dam, 1940">ASCE-Landmark:Fort Peck Dam, 1940</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Forth_%26_Clyde_Canal,_1768-1790" title="ASCE-Landmark:Forth & Clyde Canal, 1768-1790">ASCE-Landmark:Forth & Clyde Canal, 1768-1790</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fractionating_Bubble_Tower" title="Fractionating Bubble Tower">Fractionating Bubble Tower</a></li> <li><a href="/web/20230326005646/https://ethw.org/France_Builds_Visual_Telegraph" title="France Builds Visual Telegraph">France Builds Visual Telegraph</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Frankford_Avenue_Bridge,_1697" title="ASCE-Landmark:Frankford Avenue Bridge, 1697">ASCE-Landmark:Frankford Avenue Bridge, 1697</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Fresno_Scraper" title="ASME-Landmark:Fresno Scraper">ASME-Landmark:Fresno Scraper</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fried_Bacon_Analog" title="Fried Bacon Analog">Fried Bacon Analog</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Fritz_Engineering_Laboratory,_1910" title="ASCE-Landmark:Fritz Engineering Laboratory, 1910">ASCE-Landmark:Fritz Engineering Laboratory, 1910</a></li> <li><a href="/web/20230326005646/https://ethw.org/Fritz_Pfleumer_patents_magnetic_tape" title="Fritz Pfleumer patents magnetic tape">Fritz Pfleumer patents magnetic tape</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Fusion-Welded_Test_Boiler_Drum" title="ASME-Landmark:Fusion-Welded Test Boiler Drum">ASME-Landmark:Fusion-Welded Test Boiler Drum</a></li></ul></div><div class="mw-category-group"><h3>G</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/Galileo_publishes_Della_Scienza_Mechanica" title="Galileo publishes Della Scienza Mechanica">Galileo publishes Della Scienza Mechanica</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Galveston_Seawall_and_Grade_Raising_Project,_1904_%26_1911" title="ASCE-Landmark:Galveston Seawall and Grade Raising Project, 1904 & 1911">ASCE-Landmark:Galveston Seawall and Grade Raising Project, 1904 & 1911</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Garfield_Thomas_Water_Tunnel" title="ASME-Landmark:Garfield Thomas Water Tunnel">ASME-Landmark:Garfield Thomas Water Tunnel</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gas-Liquid_Relationships" title="Gas-Liquid Relationships">Gas-Liquid Relationships</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gasoline_Engines" title="Gasoline Engines">Gasoline Engines</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:GE%27s_Ultra_High_Pressure_Apparatus_for_the_Production_of_Diamonds" title="ASME-Landmark:GE's Ultra High Pressure Apparatus for the Production of Diamonds">ASME-Landmark:GE's Ultra High Pressure Apparatus for the Production of Diamonds</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Geared_Locomotives_of_Heisler,_Shay,_Climax" title="ASME-Landmark:Geared Locomotives of Heisler, Shay, Climax">ASME-Landmark:Geared Locomotives of Heisler, Shay, Climax</a></li> <li><a href="/web/20230326005646/https://ethw.org/Generators" title="Generators">Generators</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:George_Eastman_House:_Technology_Collection" title="ASME-Landmark:George Eastman House: Technology Collection">ASME-Landmark:George Eastman House: Technology Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:George_W._Woodruff_School_of_Mechanical_Engineering" title="ASME-Landmark:George W. Woodruff School of Mechanical Engineering">ASME-Landmark:George W. Woodruff School of Mechanical Engineering</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:George_Washington_Bridge,_1931" title="ASCE-Landmark:George Washington Bridge, 1931">ASCE-Landmark:George Washington Bridge, 1931</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Georgetown_Steam_Plant" title="ASME-Landmark:Georgetown Steam Plant">ASME-Landmark:Georgetown Steam Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Geysers_Unit_1" title="ASME-Landmark:Geysers Unit 1">ASME-Landmark:Geysers Unit 1</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gibbs_publishes_%22On_the_Equilibrium_of_Heterogeneous_Substances.%22" title="Gibbs publishes "On the Equilibrium of Heterogeneous Substances."">Gibbs publishes "On the Equilibrium of Heterogeneous Substances."</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Giessbach_Funicular" title="ASME-Landmark:Giessbach Funicular">ASME-Landmark:Giessbach Funicular</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ginaca_Pineapple_Processing_Machine" title="ASME-Landmark:Ginaca Pineapple Processing Machine">ASME-Landmark:Ginaca Pineapple Processing Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Going_-To-The-Sun_Road,_1932" title="ASCE-Landmark:Going -To-The-Sun Road, 1932">ASCE-Landmark:Going -To-The-Sun Road, 1932</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gold-silicon_alloy_that_remains_amorphous_at_room_temperature_developed" title="Gold-silicon alloy that remains amorphous at room temperature developed">Gold-silicon alloy that remains amorphous at room temperature developed</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Golden_Gate_Bridge,_1937" title="ASCE-Landmark:Golden Gate Bridge, 1937">ASCE-Landmark:Golden Gate Bridge, 1937</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Goldfields_Water_Supply,_1895-1903" title="ASCE-Landmark:Goldfields Water Supply, 1895-1903">ASCE-Landmark:Goldfields Water Supply, 1895-1903</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Goodyear_Airdock,_1929" title="ASCE-Landmark:Goodyear Airdock, 1929">ASCE-Landmark:Goodyear Airdock, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/Goodyear_Invents_the_Vulcanization_of_Rubber" title="Goodyear Invents the Vulcanization of Rubber">Goodyear Invents the Vulcanization of Rubber</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gordon-Aerolite_developed" title="Gordon-Aerolite developed">Gordon-Aerolite developed</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Gota_Canal,_1810-1832" title="ASCE-Landmark:Gota Canal, 1810-1832">ASCE-Landmark:Gota Canal, 1810-1832</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gramophone" title="Gramophone">Gramophone</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Grand_Central_Terminal,_1913" title="ASCE-Landmark:Grand Central Terminal, 1913">ASCE-Landmark:Grand Central Terminal, 1913</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Grand_Coulee_Dam,_1941" title="ASCE-Landmark:Grand Coulee Dam, 1941">ASCE-Landmark:Grand Coulee Dam, 1941</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Granite_Railway,_1826" title="ASCE-Landmark:Granite Railway, 1826">ASCE-Landmark:Granite Railway, 1826</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Graue_Mill" title="ASME-Landmark:Graue Mill">ASME-Landmark:Graue Mill</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Gravimetric_Coal_Feeder" title="ASME-Landmark:Gravimetric Coal Feeder">ASME-Landmark:Gravimetric Coal Feeder</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Great_Falls_Raceway_%26_Power_System,_1792-1864" title="ASCE-Landmark:Great Falls Raceway & Power System, 1792-1864">ASCE-Landmark:Great Falls Raceway & Power System, 1792-1864</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Great_Falls_Raceway_and_Power_System" title="ASME-Landmark:Great Falls Raceway and Power System">ASME-Landmark:Great Falls Raceway and Power System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Great_Northern_2313_%E2%80%93_Montana_Western_31_Gas-Electric_Rail_Motorcar" title="ASME-Landmark:Great Northern 2313 – Montana Western 31 Gas-Electric Rail Motorcar">ASME-Landmark:Great Northern 2313 – Montana Western 31 Gas-Electric Rail Motorcar</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Great_Western_Railway,_1841" title="ASCE-Landmark:Great Western Railway, 1841">ASCE-Landmark:Great Western Railway, 1841</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Greens_Bayou_Generator_Plant" title="ASME-Landmark:Greens Bayou Generator Plant">ASME-Landmark:Greens Bayou Generator Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Grumman_Wildcat_%22Sto-Wing%22_Wing-Folding_Mechanism" title="ASME-Landmark:Grumman Wildcat "Sto-Wing" Wing-Folding Mechanism">ASME-Landmark:Grumman Wildcat "Sto-Wing" Wing-Folding Mechanism</a></li> <li><a href="/web/20230326005646/https://ethw.org/Guar_in_Fracturing_Fluid" title="Guar in Fracturing Fluid">Guar in Fracturing Fluid</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Guayabo_Ceremonial_Center,_300_BC_-_AD_1400" title="ASCE-Landmark:Guayabo Ceremonial Center, 300 BC - AD 1400">ASCE-Landmark:Guayabo Ceremonial Center, 300 BC - AD 1400</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gulf_of_Mexico_Drilling" title="Gulf of Mexico Drilling">Gulf of Mexico Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gulf_of_Mexico_Exploratory_Tract" title="Gulf of Mexico Exploratory Tract">Gulf of Mexico Exploratory Tract</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Gunnison_Tunnel,_1909" title="ASCE-Landmark:Gunnison Tunnel, 1909">ASCE-Landmark:Gunnison Tunnel, 1909</a></li> <li><a href="/web/20230326005646/https://ethw.org/Gutenberg_Devises_a_Lead-Tin-Antimony_Alloy" title="Gutenberg Devises a Lead-Tin-Antimony Alloy">Gutenberg Devises a Lead-Tin-Antimony Alloy</a></li> <li><a href="/web/20230326005646/https://ethw.org/Guyed_Tower" title="Guyed Tower">Guyed Tower</a></li></ul></div><div class="mw-category-group"><h3>H</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hacienda_La_Esperanza_Sugar_Mill_Steam_Engine" title="ASME-Landmark:Hacienda La Esperanza Sugar Mill Steam Engine">ASME-Landmark:Hacienda La Esperanza Sugar Mill Steam Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hagia_Sophia,_532-537" title="ASCE-Landmark:Hagia Sophia, 532-537">ASCE-Landmark:Hagia Sophia, 532-537</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hahn_and_Strassmann_split_the_nucleus_of_a_uranium_atom" title="Hahn and Strassmann split the nucleus of a uranium atom">Hahn and Strassmann split the nucleus of a uranium atom</a></li> <li><a href="/web/20230326005646/https://ethw.org/Handheld_Wireless_Telephone" title="Handheld Wireless Telephone">Handheld Wireless Telephone</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hanford_B_Reactor" title="ASME-Landmark:Hanford B Reactor">ASME-Landmark:Hanford B Reactor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hanford_B_Reactor,_1944" title="ASCE-Landmark:Hanford B Reactor, 1944">ASCE-Landmark:Hanford B Reactor, 1944</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Harris-Corliss_Steam_Engine" title="ASME-Landmark:Harris-Corliss Steam Engine">ASME-Landmark:Harris-Corliss Steam Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hart_Parr_Tractor" title="ASME-Landmark:Hart Parr Tractor">ASME-Landmark:Hart Parr Tractor</a></li> <li><a href="/web/20230326005646/https://ethw.org/Heat-transfer_Relationships" title="Heat-transfer Relationships">Heat-transfer Relationships</a></li> <li><a href="/web/20230326005646/https://ethw.org/Heisenberg_and_Schr%C3%B6dinger_develop_quantum_mechanics" title="Heisenberg and Schrödinger develop quantum mechanics">Heisenberg and Schrödinger develop quantum mechanics</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hematology_and_Chemotherapy" title="Hematology and Chemotherapy">Hematology and Chemotherapy</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hermann_Staudinger_publishes_on_polymers" title="Hermann Staudinger publishes on polymers">Hermann Staudinger publishes on polymers</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:High_Bridge,_1877" title="ASCE-Landmark:High Bridge, 1877">ASCE-Landmark:High Bridge, 1877</a></li> <li><a href="/web/20230326005646/https://ethw.org/High-energy_Lithium_Batteries" title="High-energy Lithium Batteries">High-energy Lithium Batteries</a></li> <li><a href="/web/20230326005646/https://ethw.org/High-octane_Gasoline" title="High-octane Gasoline">High-octane Gasoline</a></li> <li><a href="/web/20230326005646/https://ethw.org/High-temperature_Cement" title="High-temperature Cement">High-temperature Cement</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hindered_Amines" title="Hindered Amines">Hindered Amines</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hippel_publishes_Molecular_Science_and_Molecular_Engineering" title="Hippel publishes Molecular Science and Molecular Engineering">Hippel publishes Molecular Science and Molecular Engineering</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hiwassee_Dam_Unit_2_Reversible_Pump-Turbine" title="ASME-Landmark:Hiwassee Dam Unit 2 Reversible Pump-Turbine">ASME-Landmark:Hiwassee Dam Unit 2 Reversible Pump-Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hohokam_Canal_System,_600_-_1450_AD" title="ASCE-Landmark:Hohokam Canal System, 600 - 1450 AD">ASCE-Landmark:Hohokam Canal System, 600 - 1450 AD</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Holland_Tunnel_Ventilation_System" title="ASME-Landmark:Holland Tunnel Ventilation System">ASME-Landmark:Holland Tunnel Ventilation System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Holland_Tunnel,_1927" title="ASCE-Landmark:Holland Tunnel, 1927">ASCE-Landmark:Holland Tunnel, 1927</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hollow-fiber_Reverse-osmosis_Membranes" title="Hollow-fiber Reverse-osmosis Membranes">Hollow-fiber Reverse-osmosis Membranes</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Holly_District_Heating_System" title="ASME-Landmark:Holly District Heating System">ASME-Landmark:Holly District Heating System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Holly_Fire_Protection_and_Water_System" title="ASME-Landmark:Holly Fire Protection and Water System">ASME-Landmark:Holly Fire Protection and Water System</a></li> <li><a href="/web/20230326005646/https://ethw.org/Holography" title="Holography">Holography</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Holt_Caterpillar_Tractor" title="ASME-Landmark:Holt Caterpillar Tractor">ASME-Landmark:Holt Caterpillar Tractor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Holyoke_Water_Power_System" title="ASME-Landmark:Holyoke Water Power System">ASME-Landmark:Holyoke Water Power System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hoosac_Tunnel,_1876" title="ASCE-Landmark:Hoosac Tunnel, 1876">ASCE-Landmark:Hoosac Tunnel, 1876</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hoover_Dam,_1935" title="ASCE-Landmark:Hoover Dam, 1935">ASCE-Landmark:Hoover Dam, 1935</a></li> <li><a href="/web/20230326005646/https://ethw.org/Horizontal_Drilling_Offshore" title="Horizontal Drilling Offshore">Horizontal Drilling Offshore</a></li> <li><a href="/web/20230326005646/https://ethw.org/Horizontal_Well_Drilling" title="Horizontal Well Drilling">Horizontal Well Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Horseshoe_Curve-Pennsylvania_RR,_1854" title="ASCE-Landmark:Horseshoe Curve-Pennsylvania RR, 1854">ASCE-Landmark:Horseshoe Curve-Pennsylvania RR, 1854</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Houston_Ship_Channel,_1914" title="ASCE-Landmark:Houston Ship Channel, 1914">ASCE-Landmark:Houston Ship Channel, 1914</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Howard_Hughes_Flying_Boat,_HK-1" title="ASME-Landmark:Howard Hughes Flying Boat, HK-1">ASME-Landmark:Howard Hughes Flying Boat, HK-1</a></li> <li><a href="/web/20230326005646/https://ethw.org/HTTP" title="HTTP">HTTP</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hudson_and_Manhattan_RR_Tunnel,_1908" title="ASCE-Landmark:Hudson and Manhattan RR Tunnel, 1908">ASCE-Landmark:Hudson and Manhattan RR Tunnel, 1908</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Huey_P._Long_Bridge,_1935" title="ASCE-Landmark:Huey P. Long Bridge, 1935">ASCE-Landmark:Huey P. Long Bridge, 1935</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hughes_Glomar_Explorer" title="ASME-Landmark:Hughes Glomar Explorer">ASME-Landmark:Hughes Glomar Explorer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hughes_Two-Cone_Drill_Bit" title="ASME-Landmark:Hughes Two-Cone Drill Bit">ASME-Landmark:Hughes Two-Cone Drill Bit</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hulett_Ore_Unloaders" title="ASME-Landmark:Hulett Ore Unloaders">ASME-Landmark:Hulett Ore Unloaders</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hwaseong_Fortress,_1796" title="ASCE-Landmark:Hwaseong Fortress, 1796">ASCE-Landmark:Hwaseong Fortress, 1796</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hydraulic_Fracturing" title="Hydraulic Fracturing">Hydraulic Fracturing</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hydraulic-Powered_Inclined_Plane_System_of_the_Morris_Canal,_1824-1836" title="ASCE-Landmark:Hydraulic-Powered Inclined Plane System of the Morris Canal, 1824-1836">ASCE-Landmark:Hydraulic-Powered Inclined Plane System of the Morris Canal, 1824-1836</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Hydraulics_Laboratory_at_the_University_of_Iowa,_1919" title="ASCE-Landmark:Hydraulics Laboratory at the University of Iowa, 1919">ASCE-Landmark:Hydraulics Laboratory at the University of Iowa, 1919</a></li> <li><a href="/web/20230326005646/https://ethw.org/Hydrofining" title="Hydrofining">Hydrofining</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Hydromatic_Propeller" title="ASME-Landmark:Hydromatic Propeller">ASME-Landmark:Hydromatic Propeller</a></li></ul></div><div class="mw-category-group"><h3>I</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:IBM_350_RAMAC_Disk_File" title="ASME-Landmark:IBM 350 RAMAC Disk File">ASME-Landmark:IBM 350 RAMAC Disk File</a></li> <li><a href="/web/20230326005646/https://ethw.org/IBM_spelled_with_scanning_tunneling_electron_microscope" title="IBM spelled with scanning tunneling electron microscope">IBM spelled with scanning tunneling electron microscope</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Icing_Research_Tunnel,_NASA_Lewis_Research_Center" title="ASME-Landmark:Icing Research Tunnel, NASA Lewis Research Center">ASME-Landmark:Icing Research Tunnel, NASA Lewis Research Center</a></li> <li><a href="/web/20230326005646/https://ethw.org/Iconoscope" title="Iconoscope">Iconoscope</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Idols_Station,_Fries_Manufacturing_%26_Power_Company" title="ASME-Landmark:Idols Station, Fries Manufacturing & Power Company">ASME-Landmark:Idols Station, Fries Manufacturing & Power Company</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ifugao_Rice_Terraces,_100_BC" title="ASCE-Landmark:Ifugao Rice Terraces, 100 BC">ASCE-Landmark:Ifugao Rice Terraces, 100 BC</a></li> <li><a href="/web/20230326005646/https://ethw.org/Induction_Ring" title="Induction Ring">Induction Ring</a></li> <li><a href="/web/20230326005646/https://ethw.org/Industrial_Synthetic_Diamonds" title="Industrial Synthetic Diamonds">Industrial Synthetic Diamonds</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ingalls_Building,_1903" title="ASCE-Landmark:Ingalls Building, 1903">ASCE-Landmark:Ingalls Building, 1903</a></li> <li><a href="/web/20230326005646/https://ethw.org/Initiation_of_the_use_of_microscopy_to_identify_the_crystal_structures_in_metals" title="Initiation of the use of microscopy to identify the crystal structures in metals">Initiation of the use of microscopy to identify the crystal structures in metals</a></li> <li><a href="/web/20230326005646/https://ethw.org/Integrated_Circuits" title="Integrated Circuits">Integrated Circuits</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Interborough_Rapid_Transit_System,_Original_Line" title="ASME-Landmark:Interborough Rapid Transit System, Original Line">ASME-Landmark:Interborough Rapid Transit System, Original Line</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:International_Boundary_Marker,_1855" title="ASCE-Landmark:International Boundary Marker, 1855">ASCE-Landmark:International Boundary Marker, 1855</a></li> <li><a href="/web/20230326005646/https://ethw.org/Invention_of_Electroplating" title="Invention of Electroplating">Invention of Electroplating</a></li> <li><a href="/web/20230326005646/https://ethw.org/Invention_of_Kevlar" title="Invention of Kevlar">Invention of Kevlar</a></li> <li><a href="/web/20230326005646/https://ethw.org/Invention_of_Modern_Concrete" title="Invention of Modern Concrete">Invention of Modern Concrete</a></li> <li><a href="/web/20230326005646/https://ethw.org/Invert_Emulsions" title="Invert Emulsions">Invert Emulsions</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Iron_Bridge,_1779" title="ASCE-Landmark:Iron Bridge, 1779">ASCE-Landmark:Iron Bridge, 1779</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Iron_Building_of_the_U.S._Army_Arsenal,_1859" title="ASCE-Landmark:Iron Building of the U.S. Army Arsenal, 1859">ASCE-Landmark:Iron Building of the U.S. Army Arsenal, 1859</a></li> <li><a href="/web/20230326005646/https://ethw.org/Isolation_of_Elemental_Aluminum" title="Isolation of Elemental Aluminum">Isolation of Elemental Aluminum</a></li> <li><a href="/web/20230326005646/https://ethw.org/Isopropyl_Alcohol" title="Isopropyl Alcohol">Isopropyl Alcohol</a></li></ul></div><div class="mw-category-group"><h3>J</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/Jablochkoff_Candles_in_Paris" title="Jablochkoff Candles in Paris">Jablochkoff Candles in Paris</a></li> <li><a href="/web/20230326005646/https://ethw.org/Jack-up_Drilling_Rig" title="Jack-up Drilling Rig">Jack-up Drilling Rig</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Jackson_Ferry_Shot_Tower" title="ASME-Landmark:Jackson Ferry Shot Tower">ASME-Landmark:Jackson Ferry Shot Tower</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Jacobs_Engine_Brake_Retarder" title="ASME-Landmark:Jacobs Engine Brake Retarder">ASME-Landmark:Jacobs Engine Brake Retarder</a></li> <li><a href="/web/20230326005646/https://ethw.org/Jan_Czochralski_publishes_A_New_Method_for_the_Measurement_of_the_Crystallization_Rate_of_Metals" title="Jan Czochralski publishes A New Method for the Measurement of the Crystallization Rate of Metals">Jan Czochralski publishes A New Method for the Measurement of the Crystallization Rate of Metals</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Jeep_Model_MB" title="ASME-Landmark:Jeep Model MB">ASME-Landmark:Jeep Model MB</a></li> <li><a href="/web/20230326005646/https://ethw.org/Jet_Fuel" title="Jet Fuel">Jet Fuel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:John_A._Roebling_Bridge,_1866" title="ASCE-Landmark:John A. Roebling Bridge, 1866">ASCE-Landmark:John A. Roebling Bridge, 1866</a></li> <li><a href="/web/20230326005646/https://ethw.org/John_B._Tytus_invents_continuous_hot-strip_rolling_of_steel" title="John B. Tytus invents continuous hot-strip rolling of steel">John B. Tytus invents continuous hot-strip rolling of steel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:John_Penn_%26_Sons_Oscillating_Steam_Engine" title="ASME-Landmark:John Penn & Sons Oscillating Steam Engine">ASME-Landmark:John Penn & Sons Oscillating Steam Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Johnstown_Incline" title="ASME-Landmark:Johnstown Incline">ASME-Landmark:Johnstown Incline</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Joining_of_the_Rails_-Transcontinental_RR,_1869" title="ASCE-Landmark:Joining of the Rails -Transcontinental RR, 1869">ASCE-Landmark:Joining of the Rails -Transcontinental RR, 1869</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Joshua_Hendy_Iron_Works" title="ASME-Landmark:Joshua Hendy Iron Works">ASME-Landmark:Joshua Hendy Iron Works</a></li></ul></div><div class="mw-category-group"><h3>K</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Kamehameha_V_Post_Office_Building,_1871" title="ASCE-Landmark:Kamehameha V Post Office Building, 1871">ASCE-Landmark:Kamehameha V Post Office Building, 1871</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Kansas_City_Park_and_Boulevard_System,_1915" title="ASCE-Landmark:Kansas City Park and Boulevard System, 1915">ASCE-Landmark:Kansas City Park and Boulevard System, 1915</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Kaplan_Turbine" title="ASME-Landmark:Kaplan Turbine">ASME-Landmark:Kaplan Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Karl_Schroter_invents_cemented_carbides" title="Karl Schroter invents cemented carbides">Karl Schroter invents cemented carbides</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Kavanagh_Building,_1935" title="ASCE-Landmark:Kavanagh Building, 1935">ASCE-Landmark:Kavanagh Building, 1935</a></li> <li><a href="/web/20230326005646/https://ethw.org/Kennelly-Heaviside_Layer" title="Kennelly-Heaviside Layer">Kennelly-Heaviside Layer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Kentucky_Dam,_1944" title="ASCE-Landmark:Kentucky Dam, 1944">ASCE-Landmark:Kentucky Dam, 1944</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Keokuk_Dam_%26_Power_Plant_Project,_1913" title="ASCE-Landmark:Keokuk Dam & Power Plant Project, 1913">ASCE-Landmark:Keokuk Dam & Power Plant Project, 1913</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Kew_Bridge_Cornish_Beam_Engines" title="ASME-Landmark:Kew Bridge Cornish Beam Engines">ASME-Landmark:Kew Bridge Cornish Beam Engines</a></li> <li><a href="/web/20230326005646/https://ethw.org/Kinetic_Theory_of_Gases" title="Kinetic Theory of Gases">Kinetic Theory of Gases</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:King%27s_Road,_1775" title="ASCE-Landmark:King's Road, 1775">ASCE-Landmark:King's Road, 1775</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Kingsbury_Thrust_Bearing" title="ASME-Landmark:Kingsbury Thrust Bearing">ASME-Landmark:Kingsbury Thrust Bearing</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Kinne_Water_Turbine_Collection" title="ASME-Landmark:Kinne Water Turbine Collection">ASME-Landmark:Kinne Water Turbine Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Kinzua_Railway_Viaduct,_1882" title="ASCE-Landmark:Kinzua Railway Viaduct, 1882">ASCE-Landmark:Kinzua Railway Viaduct, 1882</a></li> <li><a href="/web/20230326005646/https://ethw.org/Klystron" title="Klystron">Klystron</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Knight_Foundry_and_Machine_Shop" title="ASME-Landmark:Knight Foundry and Machine Shop">ASME-Landmark:Knight Foundry and Machine Shop</a></li> <li><a href="/web/20230326005646/https://ethw.org/Knoll_and_Ruska_build_the_first_transmission_electron_microscope" title="Knoll and Ruska build the first transmission electron microscope">Knoll and Ruska build the first transmission electron microscope</a></li> <li><a href="/web/20230326005646/https://ethw.org/Kuhl_%26_Edwards_Produce_CT_Scan" title="Kuhl & Edwards Produce CT Scan">Kuhl & Edwards Produce CT Scan</a></li></ul></div><div class="mw-category-group"><h3>L</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lacey_V._Murrow_Bridge_and_Mount_Baker_Ridge_Tunnels,_1940" title="ASCE-Landmark:Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels, 1940">ASCE-Landmark:Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels, 1940</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lake_Moeris_Quarry_Road,_2500_-_2100_B.C." title="ASCE-Landmark:Lake Moeris Quarry Road, 2500 - 2100 B.C.">ASCE-Landmark:Lake Moeris Quarry Road, 2500 - 2100 B.C.</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lake_Pontchartrain_Causeway_bridge,_1956" title="ASCE-Landmark:Lake Pontchartrain Causeway bridge, 1956">ASCE-Landmark:Lake Pontchartrain Causeway bridge, 1956</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lake_Washington_Ship_Canal_%26_Hiram_M_Chittenden_Locks,_1917" title="ASCE-Landmark:Lake Washington Ship Canal & Hiram M Chittenden Locks, 1917">ASCE-Landmark:Lake Washington Ship Canal & Hiram M Chittenden Locks, 1917</a></li> <li><a href="/web/20230326005646/https://ethw.org/Semiconductor_Laser" title="Semiconductor Laser">Semiconductor Laser</a></li> <li><a href="/web/20230326005646/https://ethw.org/Law_of_Gas_Diffusion_Across_Membranes" title="Law of Gas Diffusion Across Membranes">Law of Gas Diffusion Across Membranes</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lawrence_Experimental_Station,_1886" title="ASCE-Landmark:Lawrence Experimental Station, 1886">ASCE-Landmark:Lawrence Experimental Station, 1886</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Leavitt-Riedler_Pumping_Engine" title="ASME-Landmark:Leavitt-Riedler Pumping Engine">ASME-Landmark:Leavitt-Riedler Pumping Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/Lempel-Ziv_Compression_Algorithm" title="Lempel-Ziv Compression Algorithm">Lempel-Ziv Compression Algorithm</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:LeTourneau_%22Mountain_Mover%22_Scraper" title="ASME-Landmark:LeTourneau "Mountain Mover" Scraper">ASME-Landmark:LeTourneau "Mountain Mover" Scraper</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/Libby_Develops_Atomic_Clock" class="mw-redirect" title="Libby Develops Atomic Clock">Libby Develops Atomic Clock</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/Lift_Capacity_Record" title="Lift Capacity Record">Lift Capacity Record</a></li> <li><a href="/web/20230326005646/https://ethw.org/Lightning_Rod" title="Lightning Rod">Lightning Rod</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Link_C-3_Flight_Trainer" title="ASME-Landmark:Link C-3 Flight Trainer">ASME-Landmark:Link C-3 Flight Trainer</a></li> <li><a href="/web/20230326005646/https://ethw.org/Liquefied_Natural_Gas_Transport" title="Liquefied Natural Gas Transport">Liquefied Natural Gas Transport</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ljungstrom_Air_Preheater" title="ASME-Landmark:Ljungstrom Air Preheater">ASME-Landmark:Ljungstrom Air Preheater</a></li> <li><a href="/web/20230326005646/https://ethw.org/Logging_system_combining_gamma_ray_spontaneous_potential" title="Logging system combining gamma ray spontaneous potential">Logging system combining gamma ray spontaneous potential</a></li> <li><a href="/web/20230326005646/https://ethw.org/Logging_While_Drilling" title="Logging While Drilling">Logging While Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Lombard_Steam_Log_Hauler" title="ASME-Landmark:Lombard Steam Log Hauler">ASME-Landmark:Lombard Steam Log Hauler</a></li> <li><a href="/web/20230326005646/https://ethw.org/London%27s_Electrified_Subway" title="London's Electrified Subway">London's Electrified Subway</a></li> <li><a href="/web/20230326005646/https://ethw.org/Long_Distance_Telegraphy" title="Long Distance Telegraphy">Long Distance Telegraphy</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Lookout_Mountain_Incline_Railway" title="ASME-Landmark:Lookout Mountain Incline Railway">ASME-Landmark:Lookout Mountain Incline Railway</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Louisville_and_Portland_Canal_Locks_%26_Dam,_1830" title="ASCE-Landmark:Louisville and Portland Canal Locks & Dam, 1830">ASCE-Landmark:Louisville and Portland Canal Locks & Dam, 1830</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Louisville_Waterworks,_1857-1912" title="ASCE-Landmark:Louisville Waterworks, 1857-1912">ASCE-Landmark:Louisville Waterworks, 1857-1912</a></li> <li><a href="/web/20230326005646/https://ethw.org/Low-sudsing_Washing_Machine_Detergent" title="Low-sudsing Washing Machine Detergent">Low-sudsing Washing Machine Detergent</a></li> <li><a href="/web/20230326005646/https://ethw.org/Low-temperature_Lube_Oils" title="Low-temperature Lube Oils">Low-temperature Lube Oils</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Lowell_Power_Canal_System_and_Pawtucket_Gatehouse" title="ASME-Landmark:Lowell Power Canal System and Pawtucket Gatehouse">ASME-Landmark:Lowell Power Canal System and Pawtucket Gatehouse</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Lowell_Waterpower_System,_1823-1880" title="ASCE-Landmark:Lowell Waterpower System, 1823-1880">ASCE-Landmark:Lowell Waterpower System, 1823-1880</a></li></ul></div><div class="mw-category-group"><h3>M</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Machu_Picchu,_AD_1450-AD_1540" title="ASCE-Landmark:Machu Picchu, AD 1450-AD 1540">ASCE-Landmark:Machu Picchu, AD 1450-AD 1540</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Mackinac_Bridge,_1957" title="ASCE-Landmark:Mackinac Bridge, 1957">ASCE-Landmark:Mackinac Bridge, 1957</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Magma_Copper_Mine_Air_Conditioning_System" title="ASME-Landmark:Magma Copper Mine Air Conditioning System">ASME-Landmark:Magma Copper Mine Air Conditioning System</a></li> <li><a href="/web/20230326005646/https://ethw.org/Magnetic_Recording" title="Magnetic Recording">Magnetic Recording</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Maine_Turnpike,_1947" title="ASCE-Landmark:Maine Turnpike, 1947">ASCE-Landmark:Maine Turnpike, 1947</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Manhattan_Bridge,_1909" title="ASCE-Landmark:Manhattan Bridge, 1909">ASCE-Landmark:Manhattan Bridge, 1909</a></li> <li><a href="/web/20230326005646/https://ethw.org/Manh%C3%A8s_constructs_the_first_working_converter_for_copper_matte" title="Manhès constructs the first working converter for copper matte">Manhès constructs the first working converter for copper matte</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Manitou_%26_Pike%27s_Peak_Cog_Railway" title="ASME-Landmark:Manitou & Pike's Peak Cog Railway">ASME-Landmark:Manitou & Pike's Peak Cog Railway</a></li> <li><a href="/web/20230326005646/https://ethw.org/Manufacture_of_Gelatin" title="Manufacture of Gelatin">Manufacture of Gelatin</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Marine-Type_Triple-Expansion,_Engine-Driven_Dynamo" title="ASME-Landmark:Marine-Type Triple-Expansion, Engine-Driven Dynamo">ASME-Landmark:Marine-Type Triple-Expansion, Engine-Driven Dynamo</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Marlette_Lake_Water_System,_1873-1887" title="ASCE-Landmark:Marlette Lake Water System, 1873-1887">ASCE-Landmark:Marlette Lake Water System, 1873-1887</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Marshall_Building,_1906" title="ASCE-Landmark:Marshall Building, 1906">ASCE-Landmark:Marshall Building, 1906</a></li> <li><a href="/web/20230326005646/https://ethw.org/Maser" title="Maser">Maser</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Mason-Dixon_Line,_1763-1767" title="ASCE-Landmark:Mason-Dixon Line, 1763-1767">ASCE-Landmark:Mason-Dixon Line, 1763-1767</a></li> <li><a href="/web/20230326005646/https://ethw.org/Mathematical_Basis_for_Distillation" title="Mathematical Basis for Distillation">Mathematical Basis for Distillation</a></li> <li><a href="/web/20230326005646/https://ethw.org/Maxwell%27s_Equations" title="Maxwell's Equations">Maxwell's Equations</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:McKinley_Climatic_Laboratory" title="ASME-Landmark:McKinley Climatic Laboratory">ASME-Landmark:McKinley Climatic Laboratory</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:McNeill_Street_Pumping_Station,_1887" title="ASCE-Landmark:McNeill Street Pumping Station, 1887">ASCE-Landmark:McNeill Street Pumping Station, 1887</a></li> <li><a href="/web/20230326005646/https://ethw.org/Measurement-While-Drilling" title="Measurement-While-Drilling">Measurement-While-Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/Meat_Flavored_Protein" title="Meat Flavored Protein">Meat Flavored Protein</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Menai_Suspension_Bridge,_1826" title="ASCE-Landmark:Menai Suspension Bridge, 1826">ASCE-Landmark:Menai Suspension Bridge, 1826</a></li> <li><a href="/web/20230326005646/https://ethw.org/Mendeleev_Devises_the_Periodic_Table_of_Elements" title="Mendeleev Devises the Periodic Table of Elements">Mendeleev Devises the Periodic Table of Elements</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Merrill_Wheel_Balancing_System" title="ASME-Landmark:Merrill Wheel Balancing System">ASME-Landmark:Merrill Wheel Balancing System</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Meter-Type_Gas_Odorizer" title="ASME-Landmark:Meter-Type Gas Odorizer">ASME-Landmark:Meter-Type Gas Odorizer</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Miami_Conservancy_District_,_1918_-_1922" title="ASCE-Landmark:Miami Conservancy District , 1918 - 1922">ASCE-Landmark:Miami Conservancy District , 1918 - 1922</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Michigan-Lake_Superior_Power_Hydroelectric_Plant" title="ASME-Landmark:Michigan-Lake Superior Power Hydroelectric Plant">ASME-Landmark:Michigan-Lake Superior Power Hydroelectric Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Middlesex_Canal,_1803-1853" title="ASCE-Landmark:Middlesex Canal, 1803-1853">ASCE-Landmark:Middlesex Canal, 1803-1853</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Milam_High-Rise_Air_Conditioned_Building" title="ASME-Landmark:Milam High-Rise Air Conditioned Building">ASME-Landmark:Milam High-Rise Air Conditioned Building</a></li> <li><a href="/web/20230326005646/https://ethw.org/Milk_Quality_Tester" title="Milk Quality Tester">Milk Quality Tester</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Milwaukee_Metropolitan_Sewage_Treatment_Plant,_1919_-_1925" title="ASCE-Landmark:Milwaukee Metropolitan Sewage Treatment Plant, 1919 - 1925">ASCE-Landmark:Milwaukee Metropolitan Sewage Treatment Plant, 1919 - 1925</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Milwaukee_River_Flushing_Station" title="ASME-Landmark:Milwaukee River Flushing Station">ASME-Landmark:Milwaukee River Flushing Station</a></li> <li><a href="/web/20230326005646/https://ethw.org/Mine_Emergency_Response_Interactive_Training_Simulation" title="Mine Emergency Response Interactive Training Simulation">Mine Emergency Response Interactive Training Simulation</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Minot%27s_Ledge_Lighthouse,_1855-1860" title="ASCE-Landmark:Minot's Ledge Lighthouse, 1855-1860">ASCE-Landmark:Minot's Ledge Lighthouse, 1855-1860</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Missouri_River_Bridges,_1920_-_1927" title="ASCE-Landmark:Missouri River Bridges, 1920 - 1927">ASCE-Landmark:Missouri River Bridges, 1920 - 1927</a></li> <li><a href="/web/20230326005646/https://ethw.org/MIT_Course_X" title="MIT Course X">MIT Course X</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Model_T" title="ASME-Landmark:Model T">ASME-Landmark:Model T</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Moffat_Tunnel,_1927" title="ASCE-Landmark:Moffat Tunnel, 1927">ASCE-Landmark:Moffat Tunnel, 1927</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Monongahela_Incline" title="ASME-Landmark:Monongahela Incline">ASME-Landmark:Monongahela Incline</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Montgomery_Bell%27s_Tunnel,_1818" title="ASCE-Landmark:Montgomery Bell's Tunnel, 1818">ASCE-Landmark:Montgomery Bell's Tunnel, 1818</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Montgomery_Glider" title="ASME-Landmark:Montgomery Glider">ASME-Landmark:Montgomery Glider</a></li> <li><a href="/web/20230326005646/https://ethw.org/Moog" title="Moog">Moog</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Morison%27s_Memphis_Bridge,_1892" title="ASCE-Landmark:Morison's Memphis Bridge, 1892">ASCE-Landmark:Morison's Memphis Bridge, 1892</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Mormon_Tabernacle,_1867" title="ASCE-Landmark:Mormon Tabernacle, 1867">ASCE-Landmark:Mormon Tabernacle, 1867</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Morris_Canal_(Reaction)_Turbine" title="ASME-Landmark:Morris Canal (Reaction) Turbine">ASME-Landmark:Morris Canal (Reaction) Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Moseley_Wrought_Iron_Arch_Bridge,_1864" title="ASCE-Landmark:Moseley Wrought Iron Arch Bridge, 1864">ASCE-Landmark:Moseley Wrought Iron Arch Bridge, 1864</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Mount_Washington_Cog_Railway" title="ASME-Landmark:Mount Washington Cog Railway">ASME-Landmark:Mount Washington Cog Railway</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Mount_Washington_Cog_Railway,_1869" title="ASCE-Landmark:Mount Washington Cog Railway, 1869">ASCE-Landmark:Mount Washington Cog Railway, 1869</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Mount_Wilson_Observatory,_100-Inch_Hooker_Telescope" title="ASME-Landmark:Mount Wilson Observatory, 100-Inch Hooker Telescope">ASME-Landmark:Mount Wilson Observatory, 100-Inch Hooker Telescope</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Mr._Charlie_Oil_Drilling_Rig" title="ASME-Landmark:Mr. Charlie Oil Drilling Rig">ASME-Landmark:Mr. Charlie Oil Drilling Rig</a></li> <li><a href="/web/20230326005646/https://ethw.org/Mud-pulse_Telemetry" title="Mud-pulse Telemetry">Mud-pulse Telemetry</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Mullan_Road,_1860" title="ASCE-Landmark:Mullan Road, 1860">ASCE-Landmark:Mullan Road, 1860</a></li> <li><a href="/web/20230326005646/https://ethw.org/Multi-grade_All-season_Motor_Oil" title="Multi-grade All-season Motor Oil">Multi-grade All-season Motor Oil</a></li> <li><a href="/web/20230326005646/https://ethw.org/Multi-phase_Chemical_Systems_Analysis" title="Multi-phase Chemical Systems Analysis">Multi-phase Chemical Systems Analysis</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Multi-Zone_Automatic_Temperature_Control_System" title="ASME-Landmark:Multi-Zone Automatic Temperature Control System">ASME-Landmark:Multi-Zone Automatic Temperature Control System</a></li> <li><a href="/web/20230326005646/https://ethw.org/Multiple-Effect_Vacuum_Process_for_Producing_Sugar" title="Multiple-Effect Vacuum Process for Producing Sugar">Multiple-Effect Vacuum Process for Producing Sugar</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Muskingum_River_Navigation_System,_1841" title="ASCE-Landmark:Muskingum River Navigation System, 1841">ASCE-Landmark:Muskingum River Navigation System, 1841</a></li> <li><a href="/web/20230326005646/https://ethw.org/Mylar" title="Mylar">Mylar</a></li></ul></div><div class="mw-category-group"><h3>N</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:N.S._Savannah" title="ASME-Landmark:N.S. Savannah">ASME-Landmark:N.S. Savannah</a></li> <li><a href="/web/20230326005646/https://ethw.org/NASA_Launches_LANDSAT-1" title="NASA Launches LANDSAT-1">NASA Launches LANDSAT-1</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Nassawango_Iron_Furnace" title="ASME-Landmark:Nassawango Iron Furnace">ASME-Landmark:Nassawango Iron Furnace</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:National_Road,_1811-1839" title="ASCE-Landmark:National Road, 1811-1839">ASCE-Landmark:National Road, 1811-1839</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:National_Soil_Dynamics_Laboratory" title="ASME-Landmark:National Soil Dynamics Laboratory">ASME-Landmark:National Soil Dynamics Laboratory</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Navajo_Bridge,_1929" title="ASCE-Landmark:Navajo Bridge, 1929">ASCE-Landmark:Navajo Bridge, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Naval_Drydocks_at_Boston_and_Norfolk,_1834" title="ASCE-Landmark:Naval Drydocks at Boston and Norfolk, 1834">ASCE-Landmark:Naval Drydocks at Boston and Norfolk, 1834</a></li> <li><a href="/web/20230326005646/https://ethw.org/Walther_Nernst" title="Walther Nernst">Walther Nernst</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Neuch%C3%A2tel_Gas_Turbine" title="ASME-Landmark:Neuchâtel Gas Turbine">ASME-Landmark:Neuchâtel Gas Turbine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:New_Castle_Ice_Harbor,_1795" title="ASCE-Landmark:New Castle Ice Harbor, 1795">ASCE-Landmark:New Castle Ice Harbor, 1795</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:New_England_Wireless_and_Steam_Museum" title="ASME-Landmark:New England Wireless and Steam Museum">ASME-Landmark:New England Wireless and Steam Museum</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Newark_Airport,_1928" title="ASCE-Landmark:Newark Airport, 1928">ASCE-Landmark:Newark Airport, 1928</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Newcomen_Engine" title="ASME-Landmark:Newcomen Engine">ASME-Landmark:Newcomen Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Newell_Shredder" title="ASME-Landmark:Newell Shredder">ASME-Landmark:Newell Shredder</a></li> <li><a href="/web/20230326005646/https://ethw.org/Nick_Holonyak,_Jr.,_develops_the_first_practical_visible-spectrum_light-emitting_diode" title="Nick Holonyak, Jr., develops the first practical visible-spectrum light-emitting diode">Nick Holonyak, Jr., develops the first practical visible-spectrum light-emitting diode</a></li> <li><a href="/web/20230326005646/https://ethw.org/Niels_Bohr_publishes_model_of_atomic_structure" title="Niels Bohr publishes model of atomic structure">Niels Bohr publishes model of atomic structure</a></li> <li><a href="/web/20230326005646/https://ethw.org/Nobel_Patents_Dynamite" title="Nobel Patents Dynamite">Nobel Patents Dynamite</a></li> <li><a href="/web/20230326005646/https://ethw.org/Nollet_Electrifies_Royal_Guard" title="Nollet Electrifies Royal Guard">Nollet Electrifies Royal Guard</a></li> <li><a href="/web/20230326005646/https://ethw.org/Non-toxic_Oil-based_Plant_and_Insect_Spray" title="Non-toxic Oil-based Plant and Insect Spray">Non-toxic Oil-based Plant and Insect Spray</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Norfolk_%26_Western" title="ASME-Landmark:Norfolk & Western">ASME-Landmark:Norfolk & Western</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Noria_al-Muhammadiyya" title="ASME-Landmark:Noria al-Muhammadiyya">ASME-Landmark:Noria al-Muhammadiyya</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Norris_Dam,_1936" title="ASCE-Landmark:Norris Dam, 1936">ASCE-Landmark:Norris Dam, 1936</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:North_Island_Main_Trunk_Railway,_1908" title="ASCE-Landmark:North Island Main Trunk Railway, 1908">ASCE-Landmark:North Island Main Trunk Railway, 1908</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Northampton_Street_Bridge,_1896" title="ASCE-Landmark:Northampton Street Bridge, 1896">ASCE-Landmark:Northampton Street Bridge, 1896</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Northern_Pacific_High_Line_Bridge_No._64,_1908" title="ASCE-Landmark:Northern Pacific High Line Bridge No. 64, 1908">ASCE-Landmark:Northern Pacific High Line Bridge No. 64, 1908</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Northern_Pacific_Railroad_Snow_Plow" title="ASME-Landmark:Northern Pacific Railroad Snow Plow">ASME-Landmark:Northern Pacific Railroad Snow Plow</a></li></ul></div><div class="mw-category-group"><h3>O</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/O-ring_Sealed_Journal_Bearing_Drill" title="O-ring Sealed Journal Bearing Drill">O-ring Sealed Journal Bearing Drill</a></li> <li><a href="/web/20230326005646/https://ethw.org/Offshore_Alaska_Exploration" title="Offshore Alaska Exploration">Offshore Alaska Exploration</a></li> <li><a href="/web/20230326005646/https://ethw.org/Offshore_Driling" title="Offshore Driling">Offshore Driling</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ohio_Canal_System,_1825-1845" title="ASCE-Landmark:Ohio Canal System, 1825-1845">ASCE-Landmark:Ohio Canal System, 1825-1845</a></li> <li><a href="/web/20230326005646/https://ethw.org/Ohm%27s_Law" title="Ohm's Law">Ohm's Law</a></li> <li><a href="/web/20230326005646/https://ethw.org/Oil_Discovered_in_Cook_Inlet" title="Oil Discovered in Cook Inlet">Oil Discovered in Cook Inlet</a></li> <li><a href="/web/20230326005646/https://ethw.org/Oil_First_Discovered_in_US" title="Oil First Discovered in US">Oil First Discovered in US</a></li> <li><a href="/web/20230326005646/https://ethw.org/Oil_Sands_Production" title="Oil Sands Production">Oil Sands Production</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Old_Cape_Henry_Lighthouse,_1792" title="ASCE-Landmark:Old Cape Henry Lighthouse, 1792">ASCE-Landmark:Old Cape Henry Lighthouse, 1792</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Old_Mill_in_Nantucket" title="ASME-Landmark:Old Mill in Nantucket">ASME-Landmark:Old Mill in Nantucket</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Old_Wisla_Bridge,_1857" title="ASCE-Landmark:Old Wisla Bridge, 1857">ASCE-Landmark:Old Wisla Bridge, 1857</a></li> <li><a href="/web/20230326005646/https://ethw.org/Orange_Juice_Concentrate" title="Orange Juice Concentrate">Orange Juice Concentrate</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ottmar_Mergenthaler%27s_Square_Base_Linotype_Machine" title="ASME-Landmark:Ottmar Mergenthaler's Square Base Linotype Machine">ASME-Landmark:Ottmar Mergenthaler's Square Base Linotype Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Owens_AR_Bottle_Machine" title="ASME-Landmark:Owens AR Bottle Machine">ASME-Landmark:Owens AR Bottle Machine</a></li></ul></div><div class="mw-category-group"><h3>P</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/P-_and_n-type_regions_in_silicon_discovered" title="P- and n-type regions in silicon discovered">P- and n-type regions in silicon discovered</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:PACECO_Container_Crane" title="ASME-Landmark:PACECO Container Crane">ASME-Landmark:PACECO Container Crane</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pacemakers" title="Pacemakers">Pacemakers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Packet_Switching" title="Packet Switching">Packet Switching</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Paddle_Streamer_Uri" title="ASME-Landmark:Paddle Streamer Uri">ASME-Landmark:Paddle Streamer Uri</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Paige_Compositor" title="ASME-Landmark:Paige Compositor">ASME-Landmark:Paige Compositor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Panama_Canal,_1904-1914" title="ASCE-Landmark:Panama Canal, 1904-1914">ASCE-Landmark:Panama Canal, 1904-1914</a></li> <li><a href="/web/20230326005646/https://ethw.org/Parabolic_Mirror_Concentrators_for_Dyeing_Cloth" title="Parabolic Mirror Concentrators for Dyeing Cloth">Parabolic Mirror Concentrators for Dyeing Cloth</a></li> <li><a href="/web/20230326005646/https://ethw.org/Paul_Merica_patents_the_first_superalloy" title="Paul Merica patents the first superalloy">Paul Merica patents the first superalloy</a></li> <li><a href="/web/20230326005646/https://ethw.org/Peanut_Butter" title="Peanut Butter">Peanut Butter</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pearl_Street_Station" title="Pearl Street Station">Pearl Street Station</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Peavy-Haglin_Concrete_Grain_Elevator,_1900" title="ASCE-Landmark:Peavy-Haglin Concrete Grain Elevator, 1900">ASCE-Landmark:Peavy-Haglin Concrete Grain Elevator, 1900</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pegasus_3_Engine_BS_916" title="ASME-Landmark:Pegasus 3 Engine BS 916">ASME-Landmark:Pegasus 3 Engine BS 916</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Pelton_Impulse_Water_Wheel,_1878" title="ASCE-Landmark:Pelton Impulse Water Wheel, 1878">ASCE-Landmark:Pelton Impulse Water Wheel, 1878</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pelton_Waterwheel_Collection" title="ASME-Landmark:Pelton Waterwheel Collection">ASME-Landmark:Pelton Waterwheel Collection</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pelton_Wheel" title="Pelton Wheel">Pelton Wheel</a></li> <li><a href="/web/20230326005646/https://ethw.org/Penicillin" title="Penicillin">Penicillin</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Penn._RR_GG1_Electric_Locomotive" title="ASME-Landmark:Penn. RR GG1 Electric Locomotive">ASME-Landmark:Penn. RR GG1 Electric Locomotive</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Pennsylvania_Tunpike_(Old_Section),_1940" title="ASCE-Landmark:Pennsylvania Tunpike (Old Section), 1940">ASCE-Landmark:Pennsylvania Tunpike (Old Section), 1940</a></li> <li><a href="/web/20230326005646/https://ethw.org/Personal_Dust_Monitor" title="Personal Dust Monitor">Personal Dust Monitor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Peterborough_Hydraulic_(Canal)_Lift_Lock" title="ASME-Landmark:Peterborough Hydraulic (Canal) Lift Lock">ASME-Landmark:Peterborough Hydraulic (Canal) Lift Lock</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Petra,_400_B.C._-_400_A.D." title="ASCE-Landmark:Petra, 400 B.C. - 400 A.D.">ASCE-Landmark:Petra, 400 B.C. - 400 A.D.</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Philadelphia_City_Hall,_1901" title="ASCE-Landmark:Philadelphia City Hall, 1901">ASCE-Landmark:Philadelphia City Hall, 1901</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Philadelphia_Municipal_Water_Supply,_1799_-_1801" title="ASCE-Landmark:Philadelphia Municipal Water Supply, 1799 - 1801">ASCE-Landmark:Philadelphia Municipal Water Supply, 1799 - 1801</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Philo_6_Steam-Electric_Generating_Unit" title="ASME-Landmark:Philo 6 Steam-Electric Generating Unit">ASME-Landmark:Philo 6 Steam-Electric Generating Unit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Phonograph" title="Phonograph">Phonograph</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pierce-Donachy_Ventricular_Assist_Device" title="ASME-Landmark:Pierce-Donachy Ventricular Assist Device">ASME-Landmark:Pierce-Donachy Ventricular Assist Device</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pierre_and_Marie_Curie_Discover_Radioactivity" title="Pierre and Marie Curie Discover Radioactivity">Pierre and Marie Curie Discover Radioactivity</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pilatusbahn" title="ASME-Landmark:Pilatusbahn">ASME-Landmark:Pilatusbahn</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pin-Ticketing_Machine" title="ASME-Landmark:Pin-Ticketing Machine">ASME-Landmark:Pin-Ticketing Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pioneer_Oil_Refinery_California_Star_Oil_Works" title="ASME-Landmark:Pioneer Oil Refinery California Star Oil Works">ASME-Landmark:Pioneer Oil Refinery California Star Oil Works</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pioneer_Zephyr" title="ASME-Landmark:Pioneer Zephyr">ASME-Landmark:Pioneer Zephyr</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pit-Cast_Jib_Crane" title="ASME-Landmark:Pit-Cast Jib Crane">ASME-Landmark:Pit-Cast Jib Crane</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pitney-Bowes_Model_M_Postage_Meter" title="ASME-Landmark:Pitney-Bowes Model M Postage Meter">ASME-Landmark:Pitney-Bowes Model M Postage Meter</a></li> <li><a href="/web/20230326005646/https://ethw.org/Plastic_deformation_of_ductile_materials_proposed" title="Plastic deformation of ductile materials proposed">Plastic deformation of ductile materials proposed</a></li> <li><a href="/web/20230326005646/https://ethw.org/Plexiglas" title="Plexiglas">Plexiglas</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Point_of_Beginning,_U.S._Public_Lands,_1785" title="ASCE-Landmark:Point of Beginning, U.S. Public Lands, 1785">ASCE-Landmark:Point of Beginning, U.S. Public Lands, 1785</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polyamide_Nylon_66" title="Polyamide Nylon 66">Polyamide Nylon 66</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polybenzimidazole_Fibers" title="Polybenzimidazole Fibers">Polybenzimidazole Fibers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polycrystalline_Diamond_Compact_Drill_Bit" title="Polycrystalline Diamond Compact Drill Bit">Polycrystalline Diamond Compact Drill Bit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polyester" title="Polyester">Polyester</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polymer_nylon_patented" title="Polymer nylon patented">Polymer nylon patented</a></li> <li><a href="/web/20230326005646/https://ethw.org/Polystyrene" title="Polystyrene">Polystyrene</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ponte_Maria_Pia_Bridge,_1877" title="ASCE-Landmark:Ponte Maria Pia Bridge, 1877">ASCE-Landmark:Ponte Maria Pia Bridge, 1877</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Port_Washington_Power_Plant" title="ASME-Landmark:Port Washington Power Plant">ASME-Landmark:Port Washington Power Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/Portable_Patient_Dialysis_Machine" title="Portable Patient Dialysis Machine">Portable Patient Dialysis Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Portland_Head_Light,_1790" title="ASCE-Landmark:Portland Head Light, 1790">ASCE-Landmark:Portland Head Light, 1790</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Portland_Observatory,_1807" title="ASCE-Landmark:Portland Observatory, 1807">ASCE-Landmark:Portland Observatory, 1807</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Portsmouth-Kittery_Naval_Shipbuilding_Activity" title="ASME-Landmark:Portsmouth-Kittery Naval Shipbuilding Activity">ASME-Landmark:Portsmouth-Kittery Naval Shipbuilding Activity</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Potowmack_Canal_and_Locks,_1785-1828" title="ASCE-Landmark:Potowmack Canal and Locks, 1785-1828">ASCE-Landmark:Potowmack Canal and Locks, 1785-1828</a></li> <li><a href="/web/20230326005646/https://ethw.org/Potter_develops_the_flotation_process_to_separate_metallic_sulfide_minerals_from_otherwise_unusable_minerals" title="Potter develops the flotation process to separate metallic sulfide minerals from otherwise unusable minerals">Potter develops the flotation process to separate metallic sulfide minerals from otherwise unusable minerals</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Poughkeepsie-Highland_Bridge,_1889" title="ASCE-Landmark:Poughkeepsie-Highland Bridge, 1889">ASCE-Landmark:Poughkeepsie-Highland Bridge, 1889</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pratt_Institute_Power_Plant" title="ASME-Landmark:Pratt Institute Power Plant">ASME-Landmark:Pratt Institute Power Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Prehistoric_Mesa_Verde_Reservoirs,_750_A.D._-_1180_A.D." title="ASCE-Landmark:Prehistoric Mesa Verde Reservoirs, 750 A.D. - 1180 A.D.">ASCE-Landmark:Prehistoric Mesa Verde Reservoirs, 750 A.D. - 1180 A.D.</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pressure_Swing_Adsorption" title="Pressure Swing Adsorption">Pressure Swing Adsorption</a></li> <li><a href="/web/20230326005646/https://ethw.org/Joseph_Priestley" title="Joseph Priestley">Joseph Priestley</a></li> <li><a href="/web/20230326005646/https://ethw.org/Process_for_obtaining_high-purity_uranium_from_uranium_halides_developed" title="Process for obtaining high-purity uranium from uranium halides developed">Process for obtaining high-purity uranium from uranium halides developed</a></li> <li><a href="/web/20230326005646/https://ethw.org/Production_of_photonic_crystals" title="Production of photonic crystals">Production of photonic crystals</a></li> <li><a href="/web/20230326005646/https://ethw.org/Prudhoe_Bay" title="Prudhoe Bay">Prudhoe Bay</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Pullman_Sleeping_Car_Glengyle" title="ASME-Landmark:Pullman Sleeping Car Glengyle">ASME-Landmark:Pullman Sleeping Car Glengyle</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/Punched_Card_Equipment" class="mw-redirect" title="Punched Card Equipment">Punched Card Equipment</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/Purpose-built_Pipelay_Vessels" title="Purpose-built Pipelay Vessels">Purpose-built Pipelay Vessels</a></li> <li><a href="/web/20230326005646/https://ethw.org/Pyrex" title="Pyrex">Pyrex</a></li></ul></div><div class="mw-category-group"><h3>Q</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Q-R-S_Marking_Piano" title="ASME-Landmark:Q-R-S Marking Piano">ASME-Landmark:Q-R-S Marking Piano</a></li> <li><a href="/web/20230326005646/https://ethw.org/Quadruplex_Telegraph" title="Quadruplex Telegraph">Quadruplex Telegraph</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Quebec_Bridge,_1917" title="ASCE-Landmark:Quebec Bridge, 1917">ASCE-Landmark:Quebec Bridge, 1917</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Queensboro_Bridge,_1909" title="ASCE-Landmark:Queensboro Bridge, 1909">ASCE-Landmark:Queensboro Bridge, 1909</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Quincy_Mining_Company_No._2_Mine_Hoist" title="ASME-Landmark:Quincy Mining Company No. 2 Mine Hoist">ASME-Landmark:Quincy Mining Company No. 2 Mine Hoist</a></li></ul></div><div class="mw-category-group"><h3>R</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:R_L-10_Rocket_Engine" title="ASME-Landmark:R L-10 Rocket Engine">ASME-Landmark:R L-10 Rocket Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Radio_City_Music_Hall_Hydraulically_Actuated_Stage" title="ASME-Landmark:Radio City Music Hall Hydraulically Actuated Stage">ASME-Landmark:Radio City Music Hall Hydraulically Actuated Stage</a></li> <li><a href="/web/20230326005646/https://ethw.org/Radio_Direction_Finder" title="Radio Direction Finder">Radio Direction Finder</a></li> <li><a href="/web/20230326005646/https://ethw.org/Reaction_Injection_Molding" title="Reaction Injection Molding">Reaction Injection Molding</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Red_Hill_Underground_Fuel_Storage_Facility,_1943" title="ASCE-Landmark:Red Hill Underground Fuel Storage Facility, 1943">ASCE-Landmark:Red Hill Underground Fuel Storage Facility, 1943</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Reed_Gold_Mine_Ten-Stamp_Mill" title="ASME-Landmark:Reed Gold Mine Ten-Stamp Mill">ASME-Landmark:Reed Gold Mine Ten-Stamp Mill</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Refrigeration_Research_Museum" title="ASME-Landmark:Refrigeration Research Museum">ASME-Landmark:Refrigeration Research Museum</a></li> <li><a href="/web/20230326005646/https://ethw.org/Relationship_Between_Advection_to_Diffusion" title="Relationship Between Advection to Diffusion">Relationship Between Advection to Diffusion</a></li> <li><a href="/web/20230326005646/https://ethw.org/Relationship_Between_Gas_Diffusion_and_Density" title="Relationship Between Gas Diffusion and Density">Relationship Between Gas Diffusion and Density</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Rensselaer_Polytechnic_Institute,_1824" title="ASCE-Landmark:Rensselaer Polytechnic Institute, 1824">ASCE-Landmark:Rensselaer Polytechnic Institute, 1824</a></li> <li><a href="/web/20230326005646/https://ethw.org/Reproducing_Colors_Photographically" title="Reproducing Colors Photographically">Reproducing Colors Photographically</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Reuleaux_Collection_of_Kinematic_Mechanisms_at_Cornell_University" title="ASME-Landmark:Reuleaux Collection of Kinematic Mechanisms at Cornell University">ASME-Landmark:Reuleaux Collection of Kinematic Mechanisms at Cornell University</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Reversal_of_the_Chicago_River,_1892_-_1900" title="ASCE-Landmark:Reversal of the Chicago River, 1892 - 1900">ASCE-Landmark:Reversal of the Chicago River, 1892 - 1900</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Reversible_Waterwheel_%26_Man_Engine" title="ASME-Landmark:Reversible Waterwheel & Man Engine">ASME-Landmark:Reversible Waterwheel & Man Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Reynolds-Corliss_Pumping_Engine" title="ASME-Landmark:Reynolds-Corliss Pumping Engine">ASME-Landmark:Reynolds-Corliss Pumping Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Ringwood_Manor_Iron_Complex" title="ASME-Landmark:Ringwood Manor Iron Complex">ASME-Landmark:Ringwood Manor Iron Complex</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:River_des_Peres_Sewage_%26_Drainage_Works,_1924_-_1931" title="ASCE-Landmark:River des Peres Sewage & Drainage Works, 1924 - 1931">ASCE-Landmark:River des Peres Sewage & Drainage Works, 1924 - 1931</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Robbins_%26_Lawrence_Machine_Shop" title="ASME-Landmark:Robbins & Lawrence Machine Shop">ASME-Landmark:Robbins & Lawrence Machine Shop</a></li> <li><a href="/web/20230326005646/https://ethw.org/Roberts-Austen_develops_the_phase_diagram_for_iron_and_carbon" title="Roberts-Austen develops the phase diagram for iron and carbon">Roberts-Austen develops the phase diagram for iron and carbon</a></li> <li><a href="/web/20230326005646/https://ethw.org/Rock_Dusting" title="Rock Dusting">Rock Dusting</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Rockville_Stone_Arch_Bridge,_1902" title="ASCE-Landmark:Rockville Stone Arch Bridge, 1902">ASCE-Landmark:Rockville Stone Arch Bridge, 1902</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Rocky_River_Pumped_Storage_Hydraulic_Plant,_1929" title="ASCE-Landmark:Rocky River Pumped Storage Hydraulic Plant, 1929">ASCE-Landmark:Rocky River Pumped Storage Hydraulic Plant, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Roebling_80-Ton_Wire_Rope_Machine" title="ASME-Landmark:Roebling 80-Ton Wire Rope Machine">ASME-Landmark:Roebling 80-Ton Wire Rope Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Roebling%27s_Delaware_Aqueduct,_1848" title="ASCE-Landmark:Roebling's Delaware Aqueduct, 1848">ASCE-Landmark:Roebling's Delaware Aqueduct, 1848</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Rogue_River_Bridge,_1931" title="ASCE-Landmark:Rogue River Bridge, 1931">ASCE-Landmark:Rogue River Bridge, 1931</a></li> <li><a href="/web/20230326005646/https://ethw.org/Roller-Cone_Drill_Bit" title="Roller-Cone Drill Bit">Roller-Cone Drill Bit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Roof_Bolting" title="Roof Bolting">Roof Bolting</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Roosa_Master_Diesel_Fuel-Injection_Pump" title="ASME-Landmark:Roosa Master Diesel Fuel-Injection Pump">ASME-Landmark:Roosa Master Diesel Fuel-Injection Pump</a></li> <li><a href="/web/20230326005646/https://ethw.org/Rotating_Hoists" title="Rotating Hoists">Rotating Hoists</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Rotating-Arm_Model-Test_Facility" title="ASME-Landmark:Rotating-Arm Model-Test Facility">ASME-Landmark:Rotating-Arm Model-Test Facility</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Royal_Colonial_Boundary_of_1665,_1728-1821" title="ASCE-Landmark:Royal Colonial Boundary of 1665, 1728-1821">ASCE-Landmark:Royal Colonial Boundary of 1665, 1728-1821</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Rumely_Companies%27_Agricultural_Products" title="ASME-Landmark:Rumely Companies' Agricultural Products">ASME-Landmark:Rumely Companies' Agricultural Products</a></li></ul></div><div class="mw-category-group"><h3>S</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/SAGE_(Semi-Automatic_Ground_Environment)" title="SAGE (Semi-Automatic Ground Environment)">SAGE (Semi-Automatic Ground Environment)</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Salginatobel_Bridge,_1930" title="ASCE-Landmark:Salginatobel Bridge, 1930">ASCE-Landmark:Salginatobel Bridge, 1930</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:San_Antonio_River_Walk_%26_Flood_Control_system,_1929_-_1941" title="ASCE-Landmark:San Antonio River Walk & Flood Control system, 1929 - 1941">ASCE-Landmark:San Antonio River Walk & Flood Control system, 1929 - 1941</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:San_Francisco-Oakland_Bay_Bridge,_1936" title="ASCE-Landmark:San Francisco-Oakland Bay Bridge, 1936">ASCE-Landmark:San Francisco-Oakland Bay Bridge, 1936</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:San_Jacinto_Monument,_1939" title="ASCE-Landmark:San Jacinto Monument, 1939">ASCE-Landmark:San Jacinto Monument, 1939</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Saturn_V_Rocket_-_Florida" title="ASME-Landmark:Saturn V Rocket - Florida">ASME-Landmark:Saturn V Rocket - Florida</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Saugus_Ironworks" title="ASME-Landmark:Saugus Ironworks">ASME-Landmark:Saugus Ironworks</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Sault_Ste._Marie_Hydroelectric_Power_complex,_1902" title="ASCE-Landmark:Sault Ste. Marie Hydroelectric Power complex, 1902">ASCE-Landmark:Sault Ste. Marie Hydroelectric Power complex, 1902</a></li> <li><a href="/web/20230326005646/https://ethw.org/Scattering_of_Electromagnetic_Radiation" title="Scattering of Electromagnetic Radiation">Scattering of Electromagnetic Radiation</a></li> <li><a href="/web/20230326005646/https://ethw.org/Schmid_and_Boas_publish_Kristallplastizitaet" title="Schmid and Boas publish Kristallplastizitaet">Schmid and Boas publish Kristallplastizitaet</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Second_Street_Bridge,_1886" title="ASCE-Landmark:Second Street Bridge, 1886">ASCE-Landmark:Second Street Bridge, 1886</a></li> <li><a href="/web/20230326005646/https://ethw.org/Seiko_Markets_Quartz_Watch" title="Seiko Markets Quartz Watch">Seiko Markets Quartz Watch</a></li> <li><a href="/web/20230326005646/https://ethw.org/Seismic_Technology" title="Seismic Technology">Seismic Technology</a></li> <li><a href="/web/20230326005646/https://ethw.org/Self-Contained_Breathing_Device" title="Self-Contained Breathing Device">Self-Contained Breathing Device</a></li> <li><a href="/web/20230326005646/https://ethw.org/Semisubmursible_Drilling" title="Semisubmursible Drilling">Semisubmursible Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Seventh_Street_Improvement_Arches,_1884" title="ASCE-Landmark:Seventh Street Improvement Arches, 1884">ASCE-Landmark:Seventh Street Improvement Arches, 1884</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Sewall%27s_Bridge,_1761" title="ASCE-Landmark:Sewall's Bridge, 1761">ASCE-Landmark:Sewall's Bridge, 1761</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Shannon_Hydroelectric_Scheme,_1929" title="ASCE-Landmark:Shannon Hydroelectric Scheme, 1929">ASCE-Landmark:Shannon Hydroelectric Scheme, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/Shannon_Publishes_on_Communication_Theory" title="Shannon Publishes on Communication Theory">Shannon Publishes on Communication Theory</a></li> <li><a href="/web/20230326005646/https://ethw.org/Ship-shape_Production" title="Ship-shape Production">Ship-shape Production</a></li> <li><a href="/web/20230326005646/https://ethw.org/Shippingport_Nuclear_Power_Plant" title="Shippingport Nuclear Power Plant">Shippingport Nuclear Power Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Shippingport_Nuclear_Power_Station" title="ASME-Landmark:Shippingport Nuclear Power Station">ASME-Landmark:Shippingport Nuclear Power Station</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Sholes_%26_Glidden_%22Type_Writer%22" title="ASME-Landmark:Sholes & Glidden "Type Writer"">ASME-Landmark:Sholes & Glidden "Type Writer"</a></li> <li><a href="/web/20230326005646/https://ethw.org/Siegfried_Junghans_perfects_continuous_casting_of_nonferrous_metal" title="Siegfried Junghans perfects continuous casting of nonferrous metal">Siegfried Junghans perfects continuous casting of nonferrous metal</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Siegfried_Marcus_Car" title="ASME-Landmark:Siegfried Marcus Car">ASME-Landmark:Siegfried Marcus Car</a></li> <li><a href="/web/20230326005646/https://ethw.org/Siemens_patents_the_arc-type_electric_furnace" title="Siemens patents the arc-type electric furnace">Siemens patents the arc-type electric furnace</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Sikorsky_VS-300_Helicopter" title="ASME-Landmark:Sikorsky VS-300 Helicopter">ASME-Landmark:Sikorsky VS-300 Helicopter</a></li> <li><a href="/web/20230326005646/https://ethw.org/Silicon_Transistor" title="Silicon Transistor">Silicon Transistor</a></li> <li><a href="/web/20230326005646/https://ethw.org/Silicone_Elastomers" title="Silicone Elastomers">Silicone Elastomers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Simple_Electric_Motor" title="Simple Electric Motor">Simple Electric Motor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Site_of_the_Founding_Meeting_of_ASCE,_1852" title="ASCE-Landmark:Site of the Founding Meeting of ASCE, 1852">ASCE-Landmark:Site of the Founding Meeting of ASCE, 1852</a></li> <li><a href="/web/20230326005646/https://ethw.org/Skeggs_Leonards_Artificial_Kidney" title="Skeggs Leonards Artificial Kidney">Skeggs Leonards Artificial Kidney</a></li> <li><a href="/web/20230326005646/https://ethw.org/Slow-release_Fertilizer_for_Bio-remediation" title="Slow-release Fertilizer for Bio-remediation">Slow-release Fertilizer for Bio-remediation</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Smithfield_Street_Bridge,_1883" title="ASCE-Landmark:Smithfield Street Bridge, 1883">ASCE-Landmark:Smithfield Street Bridge, 1883</a></li> <li><a href="/web/20230326005646/https://ethw.org/Smokeless_Gunpowder" title="Smokeless Gunpowder">Smokeless Gunpowder</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Snoqualmie_Falls_Cavity_Generating_Station,_1899" title="ASCE-Landmark:Snoqualmie Falls Cavity Generating Station, 1899">ASCE-Landmark:Snoqualmie Falls Cavity Generating Station, 1899</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Snowy_Mountains_Hydo-electric_Scheme,_1947-1972" title="ASCE-Landmark:Snowy Mountains Hydo-electric Scheme, 1947-1972">ASCE-Landmark:Snowy Mountains Hydo-electric Scheme, 1947-1972</a></li> <li><a href="/web/20230326005646/https://ethw.org/Soda_Ash_From_Common_Salt" title="Soda Ash From Common Salt">Soda Ash From Common Salt</a></li> <li><a href="/web/20230326005646/https://ethw.org/Soda_Bottles" title="Soda Bottles">Soda Bottles</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Solar_Energy_and_Energy_Conversion_Laboratory" title="ASME-Landmark:Solar Energy and Energy Conversion Laboratory">ASME-Landmark:Solar Energy and Energy Conversion Laboratory</a></li> <li><a href="/web/20230326005646/https://ethw.org/Solvay_Process_for_Manufacturing_Soda_Ash" title="Solvay Process for Manufacturing Soda Ash">Solvay Process for Manufacturing Soda Ash</a></li> <li><a href="/web/20230326005646/https://ethw.org/Sorby_uses_light_microscopy_to_reveal_the_microstructure_of_steel" title="Sorby uses light microscopy to reveal the microstructure of steel">Sorby uses light microscopy to reveal the microstructure of steel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Southern_Gas_Association-PCRC_Analog_Facility" title="ASME-Landmark:Southern Gas Association-PCRC Analog Facility">ASME-Landmark:Southern Gas Association-PCRC Analog Facility</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Southern_Pacific" title="ASME-Landmark:Southern Pacific">ASME-Landmark:Southern Pacific</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Southern_Railway_Spencer_Shops" title="ASME-Landmark:Southern Railway Spencer Shops">ASME-Landmark:Southern Railway Spencer Shops</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Split-Hopkinson_Pressure_Bar_Apparatus" title="ASME-Landmark:Split-Hopkinson Pressure Bar Apparatus">ASME-Landmark:Split-Hopkinson Pressure Bar Apparatus</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Springfield_Armory" title="ASME-Landmark:Springfield Armory">ASME-Landmark:Springfield Armory</a></li> <li><a href="/web/20230326005646/https://ethw.org/Sputnik" title="Sputnik">Sputnik</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:SS_Badger_Carferry" title="ASME-Landmark:SS Badger Carferry">ASME-Landmark:SS Badger Carferry</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:SS_Great_Britain" title="ASME-Landmark:SS Great Britain">ASME-Landmark:SS Great Britain</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:SS_Jeremiah_O%27Brien" title="ASME-Landmark:SS Jeremiah O'Brien">ASME-Landmark:SS Jeremiah O'Brien</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:St._Charles_Avenue_Street_Car_Line" title="ASME-Landmark:St. Charles Avenue Street Car Line">ASME-Landmark:St. Charles Avenue Street Car Line</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:St._Clair_Tunnel,_1891" title="ASCE-Landmark:St. Clair Tunnel, 1891">ASCE-Landmark:St. Clair Tunnel, 1891</a></li> <li><a href="/web/20230326005646/https://ethw.org/Stainless_Steel" title="Stainless Steel">Stainless Steel</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Stanford_Linear_Accelerator_Center" title="ASME-Landmark:Stanford Linear Accelerator Center">ASME-Landmark:Stanford Linear Accelerator Center</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Starrucca_Viaduct,_1848" title="ASCE-Landmark:Starrucca Viaduct, 1848">ASCE-Landmark:Starrucca Viaduct, 1848</a></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/STARS:Electromechanical_Telephone-Switching" class="mw-redirect" title="STARS:Electromechanical Telephone-Switching">STARS:Electromechanical Telephone-Switching</a></span></li> <li><span class="redirect-in-category"><a href="/web/20230326005646/https://ethw.org/STARS:IBM_System/360" class="mw-redirect" title="STARS:IBM System/360">STARS:IBM System/360</a></span></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:State_Line_Generating_Unit_1" title="ASME-Landmark:State Line Generating Unit 1">ASME-Landmark:State Line Generating Unit 1</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Statue_of_Liberty,_1886" title="ASCE-Landmark:Statue of Liberty, 1886">ASCE-Landmark:Statue of Liberty, 1886</a></li> <li><a href="/web/20230326005646/https://ethw.org/Steam_Cracking" title="Steam Cracking">Steam Cracking</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Steamboat_William_G._Mather" title="ASME-Landmark:Steamboat William G. Mather">ASME-Landmark:Steamboat William G. Mather</a></li> <li><a href="/web/20230326005646/https://ethw.org/Steerable_Drilling" title="Steerable Drilling">Steerable Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Stevens_Pass_Railroad_Tunnels,_1897_-_1929" title="ASCE-Landmark:Stevens Pass Railroad Tunnels, 1897 - 1929">ASCE-Landmark:Stevens Pass Railroad Tunnels, 1897 - 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Stirling_Water-Tube_Boilers" title="ASME-Landmark:Stirling Water-Tube Boilers">ASME-Landmark:Stirling Water-Tube Boilers</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Stone_Arch_Brige_of_Burlington_Northern_RR,_1883" title="ASCE-Landmark:Stone Arch Brige of Burlington Northern RR, 1883">ASCE-Landmark:Stone Arch Brige of Burlington Northern RR, 1883</a></li> <li><a href="/web/20230326005646/https://ethw.org/Styrofoam" title="Styrofoam">Styrofoam</a></li> <li><a href="/web/20230326005646/https://ethw.org/Subsalt_Drilling" title="Subsalt Drilling">Subsalt Drilling</a></li> <li><a href="/web/20230326005646/https://ethw.org/Subsea_Completion" title="Subsea Completion">Subsea Completion</a></li> <li><a href="/web/20230326005646/https://ethw.org/Subsea_Wells" title="Subsea Wells">Subsea Wells</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Suez_Canal,_1859-1869" title="ASCE-Landmark:Suez Canal, 1859-1869">ASCE-Landmark:Suez Canal, 1859-1869</a></li> <li><a href="/web/20230326005646/https://ethw.org/Sunscreens" title="Sunscreens">Sunscreens</a></li> <li><a href="/web/20230326005646/https://ethw.org/Superheterodyne_Receiver" title="Superheterodyne Receiver">Superheterodyne Receiver</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Sweetwater_Dam,_1888" title="ASCE-Landmark:Sweetwater Dam, 1888">ASCE-Landmark:Sweetwater Dam, 1888</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Sydney_Harbour_Bridge,_1932" title="ASCE-Landmark:Sydney Harbour Bridge, 1932">ASCE-Landmark:Sydney Harbour Bridge, 1932</a></li> <li><a href="/web/20230326005646/https://ethw.org/Synthetic_Jet_and_Turbo-prop_Aircraft_Engine_Lubricants" title="Synthetic Jet and Turbo-prop Aircraft Engine Lubricants">Synthetic Jet and Turbo-prop Aircraft Engine Lubricants</a></li> <li><a href="/web/20230326005646/https://ethw.org/Synthetic_Molecular_Sieve_Zeolite" title="Synthetic Molecular Sieve Zeolite">Synthetic Molecular Sieve Zeolite</a></li></ul></div><div class="mw-category-group"><h3>T</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/T.I._Unveils_Transistor_Radio" title="T.I. Unveils Transistor Radio">T.I. Unveils Transistor Radio</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:T.V._Emery_Rice_Steam_Engine" title="ASME-Landmark:T.V. Emery Rice Steam Engine">ASME-Landmark:T.V. Emery Rice Steam Engine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tacoma_Narrows_Bridges,_1940" title="ASCE-Landmark:Tacoma Narrows Bridges, 1940">ASCE-Landmark:Tacoma Narrows Bridges, 1940</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tacoma_Narrows_Bridges,_1950" title="ASCE-Landmark:Tacoma Narrows Bridges, 1950">ASCE-Landmark:Tacoma Narrows Bridges, 1950</a></li> <li><a href="/web/20230326005646/https://ethw.org/Teflon" title="Teflon">Teflon</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tehachapi_Pass_Railroad_Line,_1876" title="ASCE-Landmark:Tehachapi Pass Railroad Line, 1876">ASCE-Landmark:Tehachapi Pass Railroad Line, 1876</a></li> <li><a href="/web/20230326005646/https://ethw.org/NASA_Launches_Telstar" title="NASA Launches Telstar">NASA Launches Telstar</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tennessee_State_Capitol,_1877" title="ASCE-Landmark:Tennessee State Capitol, 1877">ASCE-Landmark:Tennessee State Capitol, 1877</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tension-Leg_Platform" title="Tension-Leg Platform">Tension-Leg Platform</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tesla%27s_Electro-magnetic_motor" title="Tesla's Electro-magnetic motor">Tesla's Electro-magnetic motor</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Texas_%26_Pacific" title="ASME-Landmark:Texas & Pacific">ASME-Landmark:Texas & Pacific</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Texas_Commerce_Bank_Building,_1929" title="ASCE-Landmark:Texas Commerce Bank Building, 1929">ASCE-Landmark:Texas Commerce Bank Building, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/Texas_Oil_Boom" title="Texas Oil Boom">Texas Oil Boom</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Thames_Tunnel,_1843" title="ASCE-Landmark:Thames Tunnel, 1843">ASCE-Landmark:Thames Tunnel, 1843</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:The_Dalles_Lock_and_Dam,_1952_-_1956" title="ASCE-Landmark:The Dalles Lock and Dam, 1952 - 1956">ASCE-Landmark:The Dalles Lock and Dam, 1952 - 1956</a></li> <li><a href="/web/20230326005646/https://ethw.org/The_First_PCs" title="The First PCs">The First PCs</a></li> <li><a href="/web/20230326005646/https://ethw.org/The_Invention_of_Glass" title="The Invention of Glass">The Invention of Glass</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:The_Lapeyre_Automatic_Shrimp_Peeling_Machine" title="ASME-Landmark:The Lapeyre Automatic Shrimp Peeling Machine">ASME-Landmark:The Lapeyre Automatic Shrimp Peeling Machine</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:The_United_States_Standard_Screw_Threads" title="ASME-Landmark:The United States Standard Screw Threads">ASME-Landmark:The United States Standard Screw Threads</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Theodore_Roosevelt_Dam_%26_Salt_River_Project_,_1911" title="ASCE-Landmark:Theodore Roosevelt Dam & Salt River Project , 1911">ASCE-Landmark:Theodore Roosevelt Dam & Salt River Project , 1911</a></li> <li><a href="/web/20230326005646/https://ethw.org/Theory_of_Boundary_Layers" title="Theory of Boundary Layers">Theory of Boundary Layers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Thermal_Cracking" title="Thermal Cracking">Thermal Cracking</a></li> <li><a href="/web/20230326005646/https://ethw.org/Thermal_Decay_Time_Tool" title="Thermal Decay Time Tool">Thermal Decay Time Tool</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Thermo_King%C2%A9_C_Refrigeration_Unit" title="ASME-Landmark:Thermo King© C Refrigeration Unit">ASME-Landmark:Thermo King© C Refrigeration Unit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Thermoplastic_Polycarbonates" title="Thermoplastic Polycarbonates">Thermoplastic Polycarbonates</a></li> <li><a href="/web/20230326005646/https://ethw.org/Thermoplastics" title="Thermoplastics">Thermoplastics</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Thomas_Viaduct_Railroad_Bridge,_1835" title="ASCE-Landmark:Thomas Viaduct Railroad Bridge, 1835">ASCE-Landmark:Thomas Viaduct Railroad Bridge, 1835</a></li> <li><a href="/web/20230326005646/https://ethw.org/Thomson_Reveals_Electron" title="Thomson Reveals Electron">Thomson Reveals Electron</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Thrust_SSC_Supersonic_Car" title="ASME-Landmark:Thrust SSC Supersonic Car">ASME-Landmark:Thrust SSC Supersonic Car</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tipon,_1200-1534_A.D." title="ASCE-Landmark:Tipon, 1200-1534 A.D.">ASCE-Landmark:Tipon, 1200-1534 A.D.</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Titan_Crane" title="ASME-Landmark:Titan Crane">ASME-Landmark:Titan Crane</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Titan_Crane,_1907" title="ASCE-Landmark:Titan Crane, 1907">ASCE-Landmark:Titan Crane, 1907</a></li> <li><a href="/web/20230326005646/https://ethw.org/Titusville,_PA_Oil_Well" title="Titusville, PA Oil Well">Titusville, PA Oil Well</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Tokaido_Shinkansen" title="ASME-Landmark:Tokaido Shinkansen">ASME-Landmark:Tokaido Shinkansen</a></li> <li><a href="/web/20230326005646/https://ethw.org/Trans_Alaska_Oil_Pipeline" title="Trans Alaska Oil Pipeline">Trans Alaska Oil Pipeline</a></li> <li><a href="/web/20230326005646/https://ethw.org/Transatlantic_Cable" title="Transatlantic Cable">Transatlantic Cable</a></li> <li><a href="/web/20230326005646/https://ethw.org/Transatlantic_Optical_Cable" title="Transatlantic Optical Cable">Transatlantic Optical Cable</a></li> <li><a href="/web/20230326005646/https://ethw.org/Transcontinental_Telegraph_Line_(U.S.)" title="Transcontinental Telegraph Line (U.S.)">Transcontinental Telegraph Line (U.S.)</a></li> <li><a href="/web/20230326005646/https://ethw.org/Transformers" title="Transformers">Transformers</a></li> <li><a href="/web/20230326005646/https://ethw.org/Transitions_from_Laminar_to_Turbulent_Flow" title="Transitions from Laminar to Turbulent Flow">Transitions from Laminar to Turbulent Flow</a></li> <li><a href="/web/20230326005646/https://ethw.org/Traveling_Wave_Tube" title="Traveling Wave Tube">Traveling Wave Tube</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Triborough_Bridge_Project,_1936" title="ASCE-Landmark:Triborough Bridge Project, 1936">ASCE-Landmark:Triborough Bridge Project, 1936</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tricone_Roller-Cone_Drill_Bit" title="Tricone Roller-Cone Drill Bit">Tricone Roller-Cone Drill Bit</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tubing-conveyed_Perforation" title="Tubing-conveyed Perforation">Tubing-conveyed Perforation</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tungsten_Powder_Metallurgy" title="Tungsten Powder Metallurgy">Tungsten Powder Metallurgy</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Tunkhannock_Viaduct,_1915" title="ASCE-Landmark:Tunkhannock Viaduct, 1915">ASCE-Landmark:Tunkhannock Viaduct, 1915</a></li> <li><a href="/web/20230326005646/https://ethw.org/Tunnel_Diode" title="Tunnel Diode">Tunnel Diode</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Turbinia" title="ASME-Landmark:Turbinia">ASME-Landmark:Turbinia</a></li></ul></div><div class="mw-category-group"><h3>U</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:U.S._Army_Corps_of_Engineers_Waterway_Exp_Ctr,_1929" title="ASCE-Landmark:U.S. Army Corps of Engineers Waterway Exp Ctr, 1929">ASCE-Landmark:U.S. Army Corps of Engineers Waterway Exp Ctr, 1929</a></li> <li><a href="/web/20230326005646/https://ethw.org/U.S._Bureau_of_Mines" title="U.S. Bureau of Mines">U.S. Bureau of Mines</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:U.S._Capitol,_1800" title="ASCE-Landmark:U.S. Capitol, 1800">ASCE-Landmark:U.S. Capitol, 1800</a></li> <li><a href="/web/20230326005646/https://ethw.org/UK_North_Sea" title="UK North Sea">UK North Sea</a></li> <li><a href="/web/20230326005646/https://ethw.org/Underground_Extraction_Process_Using_Superheated_Water" title="Underground Extraction Process Using Superheated Water">Underground Extraction Process Using Superheated Water</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Union_Canal_Tunnel,_1827" title="ASCE-Landmark:Union Canal Tunnel, 1827">ASCE-Landmark:Union Canal Tunnel, 1827</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Union_Pacific_Big_Boy_4023_and_Centennial_6900" title="ASME-Landmark:Union Pacific Big Boy 4023 and Centennial 6900">ASME-Landmark:Union Pacific Big Boy 4023 and Centennial 6900</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Union_Station,_1894" title="ASCE-Landmark:Union Station, 1894">ASCE-Landmark:Union Station, 1894</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:United_States_Military_Academy_at_West_Point,_1802" title="ASCE-Landmark:United States Military Academy at West Point, 1802">ASCE-Landmark:United States Military Academy at West Point, 1802</a></li> <li><a href="/web/20230326005646/https://ethw.org/Unleaded_Premium_Gasoline" title="Unleaded Premium Gasoline">Unleaded Premium Gasoline</a></li> <li><a href="/web/20230326005646/https://ethw.org/Updated_Rock_Dusting_Standards" title="Updated Rock Dusting Standards">Updated Rock Dusting Standards</a></li> <li><a href="/web/20230326005646/https://ethw.org/US_Launches_Navigation_Satellite" title="US Launches Navigation Satellite">US Launches Navigation Satellite</a></li> <li><a href="/web/20230326005646/https://ethw.org/US_Rails_Adopt_Standard_Time" title="US Rails Adopt Standard Time">US Rails Adopt Standard Time</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:USS_Albacore" title="ASME-Landmark:USS Albacore">ASME-Landmark:USS Albacore</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:USS_Cairo_Engine_and_Boilers" title="ASME-Landmark:USS Cairo Engine and Boilers">ASME-Landmark:USS Cairo Engine and Boilers</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:USS_Olympia,_Vertical_Reproducing_Steam_Engines" title="ASME-Landmark:USS Olympia, Vertical Reproducing Steam Engines">ASME-Landmark:USS Olympia, Vertical Reproducing Steam Engines</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:USS_Texas%27_Reciprocating_Steam_Engines" title="ASME-Landmark:USS Texas' Reciprocating Steam Engines">ASME-Landmark:USS Texas' 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href="/web/20230326005646/https://ethw.org/Viable_Catalytic_Cracking_Process" title="Viable Catalytic Cracking Process">Viable Catalytic Cracking Process</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Viaducto_Del_Malleco,_1890" title="ASCE-Landmark:Viaducto Del Malleco, 1890">ASCE-Landmark:Viaducto Del Malleco, 1890</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Victoria_Dutch_Windmill" title="ASME-Landmark:Victoria Dutch Windmill">ASME-Landmark:Victoria Dutch Windmill</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Victoria_Falls_Bridge,_1905" title="ASCE-Landmark:Victoria Falls Bridge, 1905">ASCE-Landmark:Victoria Falls Bridge, 1905</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Voyager_Spacecraft_Interplanetary_Explorers" title="ASME-Landmark:Voyager Spacecraft Interplanetary Explorers">ASME-Landmark:Voyager Spacecraft Interplanetary Explorers</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Vulcan_Street_Plant,_1882" title="ASCE-Landmark:Vulcan Street Plant, 1882">ASCE-Landmark:Vulcan Street Plant, 1882</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASME-Landmark:Vulcan_Street_Power_Plant" title="ASME-Landmark:Vulcan Street Power Plant">ASME-Landmark:Vulcan Street Power Plant</a></li> <li><a href="/web/20230326005646/https://ethw.org/Vulcanization_of_Rubber" title="Vulcanization of Rubber">Vulcanization of Rubber</a></li></ul></div><div class="mw-category-group"><h3>W</h3> <ul><li><a href="/web/20230326005646/https://ethw.org/Waldo_Lonsbury_Semon_invents_PVC" title="Waldo Lonsbury Semon invents PVC">Waldo Lonsbury Semon invents PVC</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Waldo-Hancock_Suspension_Bridge,_1931" title="ASCE-Landmark:Waldo-Hancock Suspension Bridge, 1931">ASCE-Landmark:Waldo-Hancock Suspension Bridge, 1931</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Walnut_Street_Bridge,_1890" title="ASCE-Landmark:Walnut Street Bridge, 1890">ASCE-Landmark:Walnut Street Bridge, 1890</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Ward_House,_1876" title="ASCE-Landmark:Ward House, 1876">ASCE-Landmark:Ward House, 1876</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Washington_Monument,_1885" title="ASCE-Landmark:Washington Monument, 1885">ASCE-Landmark:Washington Monument, 1885</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Waterford_(Union)_Bridge_(replaced_in_1909),_1804" title="ASCE-Landmark:Waterford (Union) Bridge (replaced in 1909), 1804">ASCE-Landmark:Waterford (Union) Bridge (replaced in 1909), 1804</a></li> <li><a href="/web/20230326005646/https://ethw.org/ASCE-Landmark:Waterford_Bridge,_1909" title="ASCE-Landmark:Waterford Bridge, 1909">ASCE-Landmark:Waterford Bridge, 1909</a></li> <li><a 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