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Humanity's earliest days saw the discovery of fire through wood combustion, and the use of charcoal for smelting metals dates back as early as 5000 BC. Powered devices using natural energy sources such as water and wind were introduced by the Ancient Greeks and were commonly used until the 18th century steam engine revolutionized the way devices could be powered. Various natural oils were used for a range of purposes, such as whale oil for lamps. The Industrial Revolution led to the massive use of coal as fuel, and the extraction of petroleum and various other oils became extremely important with the advent of internal combustion engines. Electrical power, also based on fossil fuels, became widespread at the end of the 19th century and the production of cleaner electrical energy through nuclear, hydropower, geothermal, and solar means is a topic even more relevant to today's world. </p> <h2><span class="mw-headline" id="Subcategories">Subcategories</span></h2> <ul><li><b><a href="/Category:Alternative_energy" title="Category:Alternative energy">Alternative energy</a></b> - Energy sources considered to be alternatives to fossil fuel sources</li> <li><b><a href="/Category:Electric_variables_control" title="Category:Electric variables control">Electric variables control</a></b> - Topics pertaining to control involving electric variables including current and gain control</li> <li><b><a href="/Category:Electrochemical_devices_%26_processes" title="Category:Electrochemical devices & processes">Electrochemical devices & processes</a></b> - Devices and processes which produce electricity from chemical reactions such as batteries, fuel cells and supercapacitors</li> <li><b><a href="/Category:Electromechanical_systems" title="Category:Electromechanical systems">Electromechanical systems</a></b> - Various mechnical systems which produce electricity such as belts, drives, and furnaces</li> <li><b><a href="/Category:Electrostatic_devices_%26_processes" title="Category:Electrostatic devices & processes">Electrostatic devices & processes</a></b> - Devices and processes dealing with static electricity including particle charging, surface charging and triboelectricity</li> <li><b><a href="/Category:Energy_facilities_design,_construction_and_operation" title="Category:Energy facilities design, construction and operation">Energy facilities design, construction and operation</a></b> - Various topics related to all aspects of energy facilities</li> <li><b><a href="/Category:Engines" title="Category:Engines">Engines</a></b> - Machines which transform energy into physical motion</li> <li><b><a href="/Category:Fuels" title="Category:Fuels">Fuels</a></b> - Topics related to materials used as energy sources</li> <li><b><a href="/Category:Nuclear_and_plasma_sciences" title="Category:Nuclear and plasma sciences">Nuclear and plasma sciences</a></b> - The study of atomic particles, including the state of plasma where a certain number of particles are ionized</li> <li><b><a href="/Category:Petroleum" title="Category:Petroleum">Petroleum</a></b> - A naturally occurring material commonly refined into fuel</li> <li><b><a href="/Category:Power_electronics" title="Category:Power electronics">Power electronics</a></b> - The use of electronics for conversion of electric power</li> <li><b><a href="/Category:Power_engineering" title="Category:Power engineering">Power engineering</a></b> - Engineering for power distribution and electrification</li> <li><b><a href="/Category:Power_generation" title="Category:Power generation">Power generation</a></b> - Topics and devices which are capable of generating power such as nuclear power generation, solar power generation and hydroelectric power generation</li> <li><b><a href="/Category:Power_systems" title="Category:Power systems">Power systems</a></b> - Various kinds of power systems such as hybrid power systems, industrial power systems and transformers</li> <li><b><a href="/Category:Production_and_well_operations" title="Category:Production and well operations">Production and well operations</a></b> - General topics related to well operations</li> <li><b><a href="/Category:Renewable_energy" title="Category:Renewable energy">Renewable energy</a></b> - Energy sources considered to be replenishable</li> <li><b><a href="/Category:Reservoirs" title="Category:Reservoirs">Reservoirs</a></b> - Naturally occurring and artificial stores of fluid energy</li> <li><b><a href="/Category:Smart_grid" title="Category:Smart grid">Smart grid</a></b> - Modernized electrical grids which attempts to automate efficiency controls for electrical power distribution</li> <li><b><a href="/Category:Solar_energy" title="Category:Solar energy">Solar energy</a></b> - Energy derived from the sun</li> <li><b><a href="/Category:Well_completion" title="Category:Well completion">Well completion</a></b> - The process of preparing wells so they are ready for production</li> <li><b><a href="/Category:Well_drilling" title="Category:Well drilling">Well drilling</a></b> - The process of drilling a hole in the earth for the purpose of extraction of materials</li></ul>    </div><div class="mw-category-generated" lang="en" dir="ltr"><div id="mw-subcategories"> <h2>Subcategories</h2> <p>This category has the following 21 subcategories, out of 21 total. </p><div lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-category mw-category-columns"><div class="mw-category-group"><h3>A</h3> <ul><li><a href="/Category:Alternative_energy" title="Category:Alternative energy">Alternative energy</a></li></ul></div><div class="mw-category-group"><h3>E</h3> <ul><li><a href="/Category:Electric_variables_control" title="Category:Electric variables control">Electric variables control</a></li> <li><a href="/Category:Electrochemical_devices_%26_processes" title="Category:Electrochemical devices & processes">Electrochemical devices & processes</a></li> <li><a href="/Category:Electromechanical_systems" title="Category:Electromechanical systems">Electromechanical systems</a></li> <li><a href="/Category:Electrostatic_devices_%26_processes" title="Category:Electrostatic devices & processes">Electrostatic devices & processes</a></li> <li><a href="/Category:Energy_facilities_design,_construction_and_operation" title="Category:Energy facilities design, construction and operation">Energy facilities design, construction and operation</a></li> <li><a href="/Category:Engines" title="Category:Engines">Engines</a></li></ul></div><div class="mw-category-group"><h3>F</h3> <ul><li><a href="/Category:Fuels" title="Category:Fuels">Fuels</a></li></ul></div><div class="mw-category-group"><h3>N</h3> <ul><li><a href="/Category:Nuclear_and_plasma_sciences" title="Category:Nuclear and plasma sciences">Nuclear and plasma sciences</a></li></ul></div><div class="mw-category-group"><h3>P</h3> <ul><li><a href="/Category:Petroleum" title="Category:Petroleum">Petroleum</a></li> <li><a href="/Category:Power_electronics" title="Category:Power electronics">Power electronics</a></li> <li><a href="/Category:Power_engineering" title="Category:Power engineering">Power engineering</a></li> <li><a href="/Category:Power_generation" title="Category:Power generation">Power generation</a></li> <li><a href="/Category:Power_systems" title="Category:Power systems">Power systems</a></li> <li><a href="/Category:Production_and_well_operations" title="Category:Production and well operations">Production and well operations</a></li></ul></div><div class="mw-category-group"><h3>R</h3> <ul><li><a href="/Category:Renewable_energy" title="Category:Renewable energy">Renewable energy</a></li> <li><a href="/Category:Reservoirs" title="Category:Reservoirs">Reservoirs</a></li></ul></div><div class="mw-category-group"><h3>S</h3> <ul><li><a href="/Category:Smart_grid" title="Category:Smart grid">Smart grid</a></li> <li><a href="/Category:Solar_energy" title="Category:Solar energy">Solar energy</a></li></ul></div><div class="mw-category-group"><h3>W</h3> <ul><li><a href="/Category:Well_completion" title="Category:Well completion">Well completion</a></li> <li><a href="/Category:Well_drilling" title="Category:Well drilling">Well drilling</a></li></ul></div></div></div> </div><div id="mw-pages"> <h2>Pages in category "Energy"</h2> <p>The following 771 pages are in this category, out of 771 total. </p><div lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-category mw-category-columns"><div class="mw-category-group"><h3>1</h3> <ul><li><a href="/1000-ft_Pipelay_Barges" title="1000-ft Pipelay Barges">1000-ft Pipelay Barges</a></li></ul></div><div class="mw-category-group"><h3>3</h3> <ul><li><a href="/3D_Seismic_Processing" title="3D Seismic Processing">3D Seismic Processing</a></li></ul></div><div class="mw-category-group"><h3>A</h3> <ul><li><a href="/First-Hand:A_Hidden_Voltage_Source" title="First-Hand:A Hidden Voltage Source">First-Hand:A Hidden Voltage Source</a></li> <li><a href="/First-Hand:A_Lifelong_Career_in_Engineering,_An_Interview_with_Darrel_E._Moll" title="First-Hand:A Lifelong Career in Engineering, An Interview with Darrel E. Moll">First-Hand:A Lifelong Career in Engineering, An Interview with Darrel E. Moll</a></li> <li><a href="/First-Hand:A_Look_Back_over_the_First_50_Years_of_IEEE" title="First-Hand:A Look Back over the First 50 Years of IEEE">First-Hand:A Look Back over the First 50 Years of IEEE</a></li> <li><a href="/Philip_Abelson" title="Philip Abelson">Philip Abelson</a></li> <li><a href="/Jack_H._Abernathy" title="Jack H. Abernathy">Jack H. Abernathy</a></li> <li><a href="/AC_vs._DC" title="AC vs. DC">AC vs. DC</a></li> <li><a href="/Milestones:Adams_Hydroelectric_Generating_Plant,_1895" title="Milestones:Adams Hydroelectric Generating Plant, 1895">Milestones:Adams Hydroelectric Generating Plant, 1895</a></li> <li><a href="/Oral-History:Michael_Adler" title="Oral-History:Michael Adler">Oral-History:Michael Adler</a></li> <li><a href="/Oral-History:Norbert_Adler" title="Oral-History:Norbert Adler">Oral-History:Norbert Adler</a></li> <li><a href="/Robert_Adler" title="Robert Adler">Robert Adler</a></li> <li><a href="/Electricity_Supply_in_Afghanistan" title="Electricity Supply in Afghanistan">Electricity Supply in Afghanistan</a></li> <li><a href="/Oral-History:Roberto_Aguilera" title="Oral-History:Roberto Aguilera">Oral-History:Roberto Aguilera</a></li> <li><a href="/Air_tankers" title="Air tankers">Air tankers</a></li> <li><a href="/Hirofumi_Akagi" title="Hirofumi Akagi">Hirofumi Akagi</a></li> <li><a href="/Philip_L._Alger" title="Philip L. Alger">Philip L. Alger</a></li> <li><a href="/Herbert_Allen" title="Herbert Allen">Herbert Allen</a></li> <li><a href="/Milestones:Ames_Hydroelectric_Generating_Plant,_1891" title="Milestones:Ames Hydroelectric Generating Plant, 1891">Milestones:Ames Hydroelectric Generating Plant, 1891</a></li> <li><a href="/First-Hand:An_Engineer%27s_World_Travels" title="First-Hand:An Engineer's World Travels">First-Hand:An Engineer's World Travels</a></li> <li><a href="/George_Anders" title="George Anders">George Anders</a></li> <li><a href="/Oral-History:Bruce_Angwin" title="Oral-History:Bruce Angwin">Oral-History:Bruce Angwin</a></li> <li><a href="/Oral-History:David_Anthony" title="Oral-History:David Anthony">Oral-History:David Anthony</a></li> <li><a href="/First-Hand:Arc_Furnace_Transformers_(and_me!)" title="First-Hand:Arc Furnace Transformers (and me!)">First-Hand:Arc Furnace Transformers (and me!)</a></li> <li><a href="/Gustave_%22Gus%22_Archie" title="Gustave "Gus" Archie">Gustave "Gus" Archie</a></li> <li><a href="/Bion_J._Arnold" title="Bion J. Arnold">Bion J. Arnold</a></li> <li><a href="/Oral-History:Ken_Arnold" title="Oral-History:Ken Arnold">Oral-History:Ken Arnold</a></li> <li><a href="/Oral-History:Lyn_Arscott" title="Oral-History:Lyn Arscott">Oral-History:Lyn Arscott</a></li> <li><a href="/Oral-History:Werner_F._Auerbacher" title="Oral-History:Werner F. Auerbacher">Oral-History:Werner F. Auerbacher</a></li> <li><a href="/Arthur_Oswin_Austin" title="Arthur Oswin Austin">Arthur Oswin Austin</a></li> <li><a href="/T._Louis_Austin,_Jr." title="T. Louis Austin, Jr.">T. Louis Austin, Jr.</a></li> <li><a href="/Bibliography_of_Electrical_Heritage_in_Australia" title="Bibliography of Electrical Heritage in Australia">Bibliography of Electrical Heritage in Australia</a></li> <li><a href="/Electrical_Power_Connectors_-_Australia" title="Electrical Power Connectors - Australia">Electrical Power Connectors - Australia</a></li> <li><a href="/Australian_Oil_Circuit_Breaker_Failure" title="Australian Oil Circuit Breaker Failure">Australian Oil Circuit Breaker Failure</a></li> <li><a href="/Karl_A._Auty" title="Karl A. Auty">Karl A. Auty</a></li> <li><a href="/Charles_Francis_Avila" title="Charles Francis Avila">Charles Francis Avila</a></li> <li><a href="/William_Edward_Ayrton" title="William Edward Ayrton">William Edward Ayrton</a></li> <li><a href="/Oral-History:Khalid_Aziz" title="Oral-History:Khalid Aziz">Oral-History:Khalid Aziz</a></li></ul></div><div class="mw-category-group"><h3>B</h3> <ul><li><a href="/Bacon%27s_Fuel_Cell" title="Bacon's Fuel Cell">Bacon's Fuel Cell</a></li> <li><a href="/Oral-History:Robert_Baim" title="Oral-History:Robert Baim">Oral-History:Robert Baim</a></li> <li><a href="/Oral-History:Jack_Balde" title="Oral-History:Jack Balde">Oral-History:Jack Balde</a></li> <li><a href="/Oral-History:Jens_Bang" title="Oral-History:Jens Bang">Oral-History:Jens Bang</a></li> <li><a href="/Barrel_(Unit_of_Measurement)" title="Barrel (Unit of Measurement)">Barrel (Unit of Measurement)</a></li> <li><a href="/Oral-History:Lionel_Barthold" title="Oral-History:Lionel Barthold">Oral-History:Lionel Barthold</a></li> <li><a href="/Lionel_O._Barthold" title="Lionel O. Barthold">Lionel O. Barthold</a></li> <li><a href="/Enrique_Bartolini" title="Enrique Bartolini">Enrique Bartolini</a></li> <li><a href="/John_W._Batchelor" title="John W. Batchelor">John W. Batchelor</a></li> <li><a href="/Ren%C3%A9_Andre_Baudry" title="René Andre Baudry">René Andre Baudry</a></li> <li><a href="/Bay_of_Campeche" title="Bay of Campeche">Bay of Campeche</a></li> <li><a href="/Andrew_Beard" title="Andrew Beard">Andrew Beard</a></li> <li><a href="/Stephen_Bechtel,_Sr." title="Stephen Bechtel, Sr.">Stephen Bechtel, Sr.</a></li> <li><a href="/Oral-History:Arnold_Beck" title="Oral-History:Arnold Beck">Oral-History:Arnold Beck</a></li> <li><a href="/Sterling_Beckwith" title="Sterling Beckwith">Sterling Beckwith</a></li> <li><a href="/Robert_Austin_Bell" title="Robert Austin Bell">Robert Austin Bell</a></li> <li><a href="/Oral-History:Maurice_Bellanger" title="Oral-History:Maurice Bellanger">Oral-History:Maurice Bellanger</a></li> <li><a href="/Ernst_Berg" title="Ernst Berg">Ernst Berg</a></li> <li><a href="/Emile_Berliner" title="Emile Berliner">Emile Berliner</a></li> <li><a href="/Baruch_Berman" title="Baruch Berman">Baruch Berman</a></li> <li><a href="/Loyal_V._Bewley" title="Loyal V. Bewley">Loyal V. Bewley</a></li> <li><a href="/Oral-History:Rene_Bidard" title="Oral-History:Rene Bidard">Oral-History:Rene Bidard</a></li> <li><a href="/Oral-History:Gottfried_Biegelmeier" title="Oral-History:Gottfried Biegelmeier">Oral-History:Gottfried Biegelmeier</a></li> <li><a href="/Frede_Blaabjerg" title="Frede Blaabjerg">Frede Blaabjerg</a></li> <li><a href="/Oral-History:Tom_Blasingame" title="Oral-History:Tom Blasingame">Oral-History:Tom Blasingame</a></li> <li><a href="/Marietta_Blau" title="Marietta Blau">Marietta Blau</a></li> <li><a href="/Wolfram_Boeck" title="Wolfram Boeck">Wolfram Boeck</a></li> <li><a href="/Steven_A._Boggs" title="Steven A. Boggs">Steven A. Boggs</a></li> <li><a href="/Willem_Boone" title="Willem Boone">Willem Boone</a></li> <li><a href="/Don_Bramlett" title="Don Bramlett">Don Bramlett</a></li> <li><a href="/Oral-History:Jim_Brill" title="Oral-History:Jim Brill">Oral-History:Jim Brill</a></li> <li><a href="/Broadening_Energy_Options" title="Broadening Energy Options">Broadening Energy Options</a></li> <li><a href="/Robert_W._Brodersen" title="Robert W. Brodersen">Robert W. Brodersen</a></li> <li><a href="/Archives:Papers_of_Charles_E._L._Brown" title="Archives:Papers of Charles E. L. Brown">Archives:Papers of Charles E. L. Brown</a></li> <li><a href="/Oral-History:Herbert_Bruch" title="Oral-History:Herbert Bruch">Oral-History:Herbert Bruch</a></li> <li><a href="/John_H._Brunke" title="John H. Brunke">John H. Brunke</a></li> <li><a href="/Charles_F._Brush" title="Charles F. Brush">Charles F. Brush</a></li> <li><a href="/Archives:Papers_of_Charles_F._Brush" title="Archives:Papers of Charles F. Brush">Archives:Papers of Charles F. Brush</a></li> <li><a href="/Oral-History:Janis_Bubenko" title="Oral-History:Janis Bubenko">Oral-History:Janis Bubenko</a></li> <li><a href="/Harold_Buck" title="Harold Buck">Harold Buck</a></li> <li><a href="/Early_Electrification_of_Buffalo" title="Early Electrification of Buffalo">Early Electrification of Buffalo</a></li></ul></div><div class="mw-category-group"><h3>C</h3> <ul><li><a href="/Lionel_Cahill" title="Lionel Cahill">Lionel Cahill</a></li> <li><a href="/Bernard_M._Cain" title="Bernard M. Cain">Bernard M. Cain</a></li> <li><a href="/Andre_J._Calvaer" title="Andre J. Calvaer">Andre J. Calvaer</a></li> <li><a href="/I._Muzaffer_Canay" title="I. Muzaffer Canay">I. Muzaffer Canay</a></li> <li><a href="/Oral-History:Francesco_Carassa" title="Oral-History:Francesco Carassa">Oral-History:Francesco Carassa</a></li> <li><a href="/Carbon_Dioxide_(CO%E2%82%82)_Capture_and_Storage_(CCS)" title="Carbon Dioxide (CO₂) Capture and Storage (CCS)">Carbon Dioxide (CO₂) Capture and Storage (CCS)</a></li> <li><a href="/John_Franklin_Carll" title="John Franklin Carll">John Franklin Carll</a></li> <li><a href="/Chester_F._Carlson" title="Chester F. Carlson">Chester F. Carlson</a></li> <li><a href="/Oral-History:Jack_Casazza" title="Oral-History:Jack Casazza">Oral-History:Jack Casazza</a></li> <li><a href="/Catalytic_Cracking" title="Catalytic Cracking">Catalytic Cracking</a></li> <li><a href="/Electric_Motor" title="Electric Motor">Electric Motor</a></li> <li><a href="/Milestones:First_Central_Station_in_South_Carolina,_1882" title="Milestones:First Central Station in South Carolina, 1882">Milestones:First Central Station in South Carolina, 1882</a></li> <li><a href="/Photographs_of_Central_Power_Stations" title="Photographs of Central Power Stations">Photographs of Central Power Stations</a></li> <li><a href="/Archives:A_Century_of_Electricals" title="Archives:A Century of Electricals">Archives:A Century of Electricals</a></li> <li><a href="/Oral-History:John_Chadwick" title="Oral-History:John Chadwick">Oral-History:John Chadwick</a></li> <li><a href="/First-Hand:Charles_Sedwick_(C.S.)_Matthews:_A_Biography" title="First-Hand:Charles Sedwick (C.S.) Matthews: A Biography">First-Hand:Charles Sedwick (C.S.) Matthews: A Biography</a></li> <li><a href="/Oral-History:Martin_Chenevert" title="Oral-History:Martin Chenevert">Oral-History:Martin Chenevert</a></li> <li><a href="/Cummings_C._Chesney" title="Cummings C. Chesney">Cummings C. Chesney</a></li> <li><a href="/Milestones:Chivilingo_Hydroelectric_Plant,_1897" title="Milestones:Chivilingo Hydroelectric Plant, 1897">Milestones:Chivilingo Hydroelectric Plant, 1897</a></li> <li><a href="/Oral-History:Christine_Economides" title="Oral-History:Christine Economides">Oral-History:Christine Economides</a></li> <li><a href="/Lewis_W._Chubb" title="Lewis W. Chubb">Lewis W. Chubb</a></li> <li><a href="/Oral-History:Jacques_Clade" title="Oral-History:Jacques Clade">Oral-History:Jacques Clade</a></li> <li><a href="/James_D._Cobine" title="James D. Cobine">James D. Cobine</a></li> <li><a href="/Cognac_Platform" title="Cognac Platform">Cognac Platform</a></li> <li><a href="/Nathan_Cohn" title="Nathan Cohn">Nathan Cohn</a></li> <li><a href="/Coiled_Tubing_Unit" title="Coiled Tubing Unit">Coiled Tubing Unit</a></li> <li><a href="/Bruce_Collipp" title="Bruce Collipp">Bruce Collipp</a></li> <li><a href="/Milestones:Compact_Disc_Audio_Player,_1979" title="Milestones:Compact Disc Audio Player, 1979">Milestones:Compact Disc Audio Player, 1979</a></li> <li><a href="/First-Hand:Computer_Hot_Flashes_and_Cold_Feet" title="First-Hand:Computer Hot Flashes and Cold Feet">First-Hand:Computer Hot Flashes and Cold Feet</a></li> <li><a href="/Charles_Concordia" title="Charles Concordia">Charles Concordia</a></li> <li><a href="/Oral-History:Charles_Concordia" title="Oral-History:Charles Concordia">Oral-History:Charles Concordia</a></li> <li><a href="/2007_IEEE_Conference_on_the_History_of_Electric_Power" title="2007 IEEE Conference on the History of Electric Power">2007 IEEE Conference on the History of Electric Power</a></li> <li><a href="/Conowingo_Dam_and_Hydroelectric_Station" title="Conowingo Dam and Hydroelectric Station">Conowingo Dam and Hydroelectric Station</a></li> <li><a href="/Frank_Conrad" title="Frank Conrad">Frank Conrad</a></li> <li><a href="/IEEE_Consumer_Technology_Society_History" title="IEEE Consumer Technology Society History">IEEE Consumer Technology Society History</a></li> <li><a href="/Controlled_Directional_Drilling" title="Controlled Directional Drilling">Controlled Directional Drilling</a></li> <li><a href="/Mervin_S._Coover" title="Mervin S. Coover">Mervin S. Coover</a></li> <li><a href="/Oral-History:Andrew_Corry" title="Oral-History:Andrew Corry">Oral-History:Andrew Corry</a></li> <li><a href="/Arthur_Ulysses_Craig" title="Arthur Ulysses Craig">Arthur Ulysses Craig</a></li> <li><a href="/Selden_B._Crary" title="Selden B. Crary">Selden B. Crary</a></li> <li><a href="/First-Hand:Creating_Self_Cooling_in_Switchgear_Equipment" title="First-Hand:Creating Self Cooling in Switchgear Equipment">First-Hand:Creating Self Cooling in Switchgear Equipment</a></li> <li><a href="/Archives:Papers_of_Francis_B._Crocker" title="Archives:Papers of Francis B. Crocker">Archives:Papers of Francis B. Crocker</a></li> <li><a href="/Oral-History:JC_Cunha" title="Oral-History:JC Cunha">Oral-History:JC Cunha</a></li> <li><a href="/Oral-History:David_Curry" title="Oral-History:David Curry">Oral-History:David Curry</a></li></ul></div><div class="mw-category-group"><h3>D</h3> <ul><li><a href="/Oral-History:Luigi_Dadda" title="Oral-History:Luigi Dadda">Oral-History:Luigi Dadda</a></li> <li><a href="/John_Frederic_Daniell" title="John Frederic Daniell">John Frederic Daniell</a></li> <li><a href="/Daniell_Cell" title="Daniell Cell">Daniell Cell</a></li> <li><a href="/Davenport%27s_Motor" title="Davenport's Motor">Davenport's Motor</a></li> <li><a href="/Ralph_Emerson_Davis" title="Ralph Emerson Davis">Ralph Emerson Davis</a></li> <li><a href="/David_Talbot_Day" title="David Talbot Day">David Talbot Day</a></li> <li><a href="/Milestones:Largest_Private_(dc)_Generating_Plant_in_the_U.S.A.,_1929" title="Milestones:Largest Private (dc) Generating Plant in the U.S.A., 1929">Milestones:Largest Private (dc) Generating Plant in the U.S.A., 1929</a></li> <li><a href="/Aldo_M._deBellis" title="Aldo M. deBellis">Aldo M. deBellis</a></li> <li><a href="/Milestones:Decew_Falls_Hydro-Electric_Plant,_1898" title="Milestones:Decew Falls Hydro-Electric Plant, 1898">Milestones:Decew Falls Hydro-Electric Plant, 1898</a></li> <li><a href="/Deep_Drilling" title="Deep Drilling">Deep Drilling</a></li> <li><a href="/Deepwater_Coring" title="Deepwater Coring">Deepwater Coring</a></li> <li><a href="/Deepwater_Mining" title="Deepwater Mining">Deepwater Mining</a></li> <li><a href="/Deepwater_Re-entry" title="Deepwater Re-entry">Deepwater Re-entry</a></li> <li><a href="/Lee_De_Forest" title="Lee De Forest">Lee De Forest</a></li> <li><a href="/Oral-History:Edward_de_Laet" title="Oral-History:Edward de Laet">Oral-History:Edward de Laet</a></li> <li><a href="/Oral-History:Charles_Denton" title="Oral-History:Charles Denton">Oral-History:Charles Denton</a></li> <li><a href="/Alexander_Deussen" title="Alexander Deussen">Alexander Deussen</a></li> <li><a href="/Dictation_Machines" title="Dictation Machines">Dictation Machines</a></li> <li><a href="/Digital_Audio_Recorders" title="Digital Audio Recorders">Digital Audio Recorders</a></li> <li><a href="/Digital_Dipmeter_Logs" title="Digital Dipmeter Logs">Digital Dipmeter Logs</a></li> <li><a href="/Digital_Signal_Processing" title="Digital Signal Processing">Digital Signal Processing</a></li> <li><a href="/Dipping_Needle" title="Dipping Needle">Dipping Needle</a></li> <li><a href="/Archives:Direct_Energy_Conversion,_A_State_of_the_Art_Appraisal" title="Archives:Direct Energy Conversion, A State of the Art Appraisal">Archives:Direct Energy Conversion, A State of the Art Appraisal</a></li> <li><a href="/Directional_Drilling" title="Directional Drilling">Directional Drilling</a></li> <li><a href="/Robert_E._Doherty" title="Robert E. Doherty">Robert E. Doherty</a></li> <li><a href="/Ray_Dolby" title="Ray Dolby">Ray Dolby</a></li> <li><a href="/Henri-Georges_Doll" title="Henri-Georges Doll">Henri-Georges Doll</a></li> <li><a href="/Hermann_Dommel" title="Hermann Dommel">Hermann Dommel</a></li> <li><a href="/Henry_C._Don_Carlos" title="Henry C. Don Carlos">Henry C. Don Carlos</a></li> <li><a href="/Oral-History:Joseph_Douglas" title="Oral-History:Joseph Douglas">Oral-History:Joseph Douglas</a></li> <li><a href="/Joseph_Douglas" title="Joseph Douglas">Joseph Douglas</a></li> <li><a href="/Alex_Dow" title="Alex Dow">Alex Dow</a></li> <li><a href="/Oral-History:Rudolf_Drabek" title="Oral-History:Rudolf Drabek">Oral-History:Rudolf Drabek</a></li> <li><a href="/Drilling_Fluids" title="Drilling Fluids">Drilling Fluids</a></li> <li><a href="/Drilling_is_Established" title="Drilling is Established">Drilling is Established</a></li> <li><a href="/Dry_Cell_Battery" title="Dry Cell Battery">Dry Cell Battery</a></li> <li><a href="/Archives:Papers_of_Louis_Duncan" title="Archives:Papers of Louis Duncan">Archives:Papers of Louis Duncan</a></li> <li><a href="/John_R._Dunki-Jacobs" title="John R. Dunki-Jacobs">John R. Dunki-Jacobs</a></li> <li><a href="/Oral-History:Sajjad_Durrani" title="Oral-History:Sajjad Durrani">Oral-History:Sajjad Durrani</a></li> <li><a href="/Michel_Duval" title="Michel Duval">Michel Duval</a></li></ul></div><div class="mw-category-group"><h3>E</h3> <ul><li><a href="/Edward_P._Eardley" title="Edward P. Eardley">Edward P. Eardley</a></li> <li><a href="/First-Hand:Early_Youth_and_Developing_Interests_of_Henry_F._Seels" title="First-Hand:Early Youth and Developing Interests of Henry F. Seels">First-Hand:Early Youth and Developing Interests of Henry F. Seels</a></li> <li><a href="/Milestones:Thomas_Alva_Edison_Historic_Site_at_Menlo_Park,_1876" title="Milestones:Thomas Alva Edison Historic Site at Menlo Park, 1876">Milestones:Thomas Alva Edison Historic Site at Menlo Park, 1876</a></li> <li><a href="/Edison%27s_Electric_Light_and_Power_System" title="Edison's Electric Light and Power System">Edison's Electric Light and Power System</a></li> <li><a href="/Edison%27s_Electric_Pen" title="Edison's Electric Pen">Edison's Electric Pen</a></li> <li><a href="/Milestones:Eel_River_High_Voltage_Direct_Current_Converter_Station,_1972" title="Milestones:Eel River High Voltage Direct Current Converter Station, 1972">Milestones:Eel River High Voltage Direct Current Converter Station, 1972</a></li> <li><a href="/EKGs_and_EEGs" title="EKGs and EEGs">EKGs and EEGs</a></li> <li><a href="/Ekofisk" title="Ekofisk">Ekofisk</a></li> <li><a href="/Electric_and_Hybrid_Vehicles" title="Electric and Hybrid Vehicles">Electric and Hybrid Vehicles</a></li> <li><a href="/Electric_Pantographs" title="Electric Pantographs">Electric Pantographs</a></li> <li><a href="/Early_Applications_of_Electric_Power" title="Early Applications of Electric Power">Early Applications of Electric Power</a></li> <li><a href="/Electrical_Logging" title="Electrical Logging">Electrical Logging</a></li> <li><a href="/First-Hand:Electrical_Power_Conversion" title="First-Hand:Electrical Power Conversion">First-Hand:Electrical Power Conversion</a></li> <li><a href="/Electrical_Recording" title="Electrical Recording">Electrical Recording</a></li> <li><a href="/Electrical_Submersible_Pump" title="Electrical Submersible Pump">Electrical Submersible Pump</a></li> <li><a href="/Early_Applications_of_Electricity" title="Early Applications of Electricity">Early Applications of Electricity</a></li> <li><a href="/Marketing_Electricity_for_the_Home" title="Marketing Electricity for the Home">Marketing Electricity for the Home</a></li> <li><a href="/Electricity_and_the_Housewife" title="Electricity and the Housewife">Electricity and the Housewife</a></li> <li><a href="/Milestones:Alternating_Current_Electrification,_1886" title="Milestones:Alternating Current Electrification, 1886">Milestones:Alternating Current Electrification, 1886</a></li> <li><a href="/Milestones:Shannon_Scheme_for_the_Electrification_of_the_Irish_Free_State,_1929" title="Milestones:Shannon Scheme for the Electrification of the Irish Free State, 1929">Milestones:Shannon Scheme for the Electrification of the Irish Free State, 1929</a></li> <li><a href="/Electrified_Subway" title="Electrified Subway">Electrified Subway</a></li> <li><a href="/Electromagnetic_Teleclinometer" title="Electromagnetic Teleclinometer">Electromagnetic Teleclinometer</a></li> <li><a href="/Electroplating" title="Electroplating">Electroplating</a></li> <li><a href="/Electrostatic_Generator" title="Electrostatic Generator">Electrostatic Generator</a></li> <li><a href="/Archives:Technological_Systems_Compete_at_Otis_Hydraulic_Versus_Electric_Elevators" title="Archives:Technological Systems Compete at Otis Hydraulic Versus Electric Elevators">Archives:Technological Systems Compete at Otis Hydraulic Versus Electric Elevators</a></li> <li><a href="/The_Electric_Elevator" title="The Electric Elevator">The Electric Elevator</a></li> <li><a href="/Walter_A._Elmore" title="Walter A. Elmore">Walter A. Elmore</a></li> <li><a href="/Archives:Papers_of_W.L.R._Emmet" title="Archives:Papers of W.L.R. Emmet">Archives:Papers of W.L.R. Emmet</a></li> <li><a href="/William_Emmet" title="William Emmet">William Emmet</a></li> <li><a href="/Empowering_Expanding_Economies" title="Empowering Expanding Economies">Empowering Expanding Economies</a></li> <li><a href="/Archives:Energy_Crisis_Engineering_Solutions" title="Archives:Energy Crisis Engineering Solutions">Archives:Energy Crisis Engineering Solutions</a></li> <li><a href="/Energy_Information_Administration" title="Energy Information Administration">Energy Information Administration</a></li> <li><a href="/Energy_Research_and_Development_Administration" title="Energy Research and Development Administration">Energy Research and Development Administration</a></li> <li><a href="/Oral-History:Joel_Engel" title="Oral-History:Joel Engel">Oral-History:Joel Engel</a></li> <li><a href="/First-Hand:Engineering_Power" title="First-Hand:Engineering Power">First-Hand:Engineering Power</a></li> <li><a href="/Oral-History:Thelma_Estrin_(1992)" title="Oral-History:Thelma Estrin (1992)">Oral-History:Thelma Estrin (1992)</a></li> <li><a href="/Oral-History:Hong_Eu" title="Oral-History:Hong Eu">Oral-History:Hong Eu</a></li> <li><a href="/Lyndon_Evans" title="Lyndon Evans">Lyndon Evans</a></li> <li><a href="/Oral-History:Bruce_W._Everitt" title="Oral-History:Bruce W. Everitt">Oral-History:Bruce W. Everitt</a></li> <li><a href="/Exploring_the_World" title="Exploring the World">Exploring the World</a></li></ul></div><div class="mw-category-group"><h3>F</h3> <ul><li><a href="/Archives:Papers_of_G._Faccioli" title="Archives:Papers of G. Faccioli">Archives:Papers of G. Faccioli</a></li> <li><a href="/Michael_Faraday" title="Michael Faraday">Michael Faraday</a></li> <li><a href="/The_Federal_Theatre_Project" title="The Federal Theatre Project">The Federal Theatre Project</a></li> <li><a href="/Louis_Ferguson" title="Louis Ferguson">Louis Ferguson</a></li> <li><a href="/Archives:Papers_of_Louis_A._Ferguson" title="Archives:Papers of Louis A. Ferguson">Archives:Papers of Louis A. Ferguson</a></li> <li><a href="/Archives:Papers_of_Sebastian_Ziani_de_Ferranti" title="Archives:Papers of Sebastian Ziani de Ferranti">Archives:Papers of Sebastian Ziani de Ferranti</a></li> <li><a href="/Oral-History:Ray_Findlay" title="Oral-History:Ray Findlay">Oral-History:Ray Findlay</a></li> <li><a href="/First-Hand:First_Artificial_Lift_Installation" title="First-Hand:First Artificial Lift Installation">First-Hand:First Artificial Lift Installation</a></li> <li><a href="/First_Oil_Tanker" title="First Oil Tanker">First Oil Tanker</a></li> <li><a href="/Milestones:First_Practical_Photovoltaic_Solar_Cell" title="Milestones:First Practical Photovoltaic Solar Cell">Milestones:First Practical Photovoltaic Solar Cell</a></li> <li><a href="/Floating_Production_Storage" title="Floating Production Storage">Floating Production Storage</a></li> <li><a href="/Oral-History:Virgilio_Floriani" title="Oral-History:Virgilio Floriani">Oral-History:Virgilio Floriani</a></li> <li><a href="/Robert_W._Flugum" title="Robert W. Flugum">Robert W. Flugum</a></li> <li><a href="/Oral-History:Charles_Flurscheim" title="Oral-History:Charles Flurscheim">Oral-History:Charles Flurscheim</a></li> <li><a href="/Henry_Edward_Foelker" title="Henry Edward Foelker">Henry Edward Foelker</a></li> <li><a href="/Milestones:Folsom_Powerhouse,_1895" title="Milestones:Folsom Powerhouse, 1895">Milestones:Folsom Powerhouse, 1895</a></li> <li><a href="/Henry_Ford" title="Henry Ford">Henry Ford</a></li> <li><a href="/Eric_B._Forsyth" title="Eric B. Forsyth">Eric B. Forsyth</a></li> <li><a href="/Fossil_fuels" title="Fossil fuels">Fossil fuels</a></li> <li><a href="/Oral-History:Ted_Foster" title="Oral-History:Ted Foster">Oral-History:Ted Foster</a></li> <li><a href="/William_J._Foster" title="William J. Foster">William J. Foster</a></li> <li><a href="/Myron_M._Fowler" title="Myron M. Fowler">Myron M. Fowler</a></li> <li><a href="/Fracturing_Fluids" title="Fracturing Fluids">Fracturing Fluids</a></li> <li><a href="/First-Hand:Fracturing_Recollections" title="First-Hand:Fracturing Recollections">First-Hand:Fracturing Recollections</a></li> <li><a href="/Chronology_of_the_early_French_petroleum_history" title="Chronology of the early French petroleum history">Chronology of the early French petroleum history</a></li> <li><a href="/James_B._Francis" title="James B. Francis">James B. Francis</a></li> <li><a href="/Adolf_Ludwig_Franke" title="Adolf Ludwig Franke">Adolf Ludwig Franke</a></li> <li><a href="/Oral-History:Ted_Frankiewicz" title="Oral-History:Ted Frankiewicz">Oral-History:Ted Frankiewicz</a></li> <li><a href="/Benjamin_Franklin%27s_Electric_Motor" title="Benjamin Franklin's Electric Motor">Benjamin Franklin's Electric Motor</a></li> <li><a href="/Archives:Competitiveness_and_Electricity:_Electricit%C3%A9_de_France_Since_1946" title="Archives:Competitiveness and Electricity: Electricité de France Since 1946">Archives:Competitiveness and Electricity: Electricité de France Since 1946</a></li> <li><a href="/Archives:Constructing_Competitiveness:_The_Politics_of_Engineering_Work_in_the_French_Nuclear_Program,_1955-1969" title="Archives:Constructing Competitiveness: The Politics of Engineering Work in the French Nuclear Program, 1955-1969">Archives:Constructing Competitiveness: The Politics of Engineering Work in the French Nuclear Program, 1955-1969</a></li> <li><a href="/Archives:Fuels_for_Electric_Power_for_the_Next_Ten_Years" title="Archives:Fuels for Electric Power for the Next Ten Years">Archives:Fuels for Electric Power for the Next Ten Years</a></li> <li><a href="/Oral-History:Tetsuo_Fujimura" title="Oral-History:Tetsuo Fujimura">Oral-History:Tetsuo Fujimura</a></li> <li><a href="/Oral-History:Leonard_Fuller" title="Oral-History:Leonard Fuller">Oral-History:Leonard Fuller</a></li> <li><a href="/Fulmer_Research_Institute" title="Fulmer Research Institute">Fulmer Research Institute</a></li></ul></div><div class="mw-category-group"><h3>G</h3> <ul><li><a href="/Oral-History:Uzia_Galil" title="Oral-History:Uzia Galil">Oral-History:Uzia Galil</a></li> <li><a href="/Stefano_Galli" title="Stefano Galli">Stefano Galli</a></li> <li><a href="/Oral-History:Anthony_Gascoigne" title="Oral-History:Anthony Gascoigne">Oral-History:Anthony Gascoigne</a></li> <li><a href="/Gasoline_Engines" title="Gasoline Engines">Gasoline Engines</a></li> <li><a href="/Oral-History:Wanda_Gass" title="Oral-History:Wanda Gass">Oral-History:Wanda Gass</a></li> <li><a href="/Gauss%27_Law" title="Gauss' Law">Gauss' Law</a></li> <li><a href="/Oral-History:Paolo_Gazzana-Priaroggia" title="Oral-History:Paolo Gazzana-Priaroggia">Oral-History:Paolo Gazzana-Priaroggia</a></li> <li><a href="/Oral-History:Ron_Gedney" title="Oral-History:Ron Gedney">Oral-History:Ron Gedney</a></li> <li><a href="/George_H._Gelb" title="George H. Gelb">George H. Gelb</a></li> <li><a href="/General_Electric_(GE)" title="General Electric (GE)">General Electric (GE)</a></li> <li><a href="/First-Hand:Generators_and_Electrical_Insulation" title="First-Hand:Generators and Electrical Insulation">First-Hand:Generators and Electrical Insulation</a></li> <li><a href="/Ralph_S._Gens" title="Ralph S. Gens">Ralph S. Gens</a></li> <li><a href="/Geophysics_and_Petroleum,_the_early_years,_1900-1930" title="Geophysics and Petroleum, the early years, 1900-1930">Geophysics and Petroleum, the early years, 1900-1930</a></li> <li><a href="/Geophysics_Enters_the_Fray" title="Geophysics Enters the Fray">Geophysics Enters the Fray</a></li> <li><a href="/Milestones:Georgetown_Steam_Hydro_Generating_Plant,_1900" title="Milestones:Georgetown Steam Hydro Generating Plant, 1900">Milestones:Georgetown Steam Hydro Generating Plant, 1900</a></li> <li><a href="/Chronology_of_the_early_German_petroleum_history" title="Chronology of the early German petroleum history">Chronology of the early German petroleum history</a></li> <li><a href="/Abraham_Gesner" title="Abraham Gesner">Abraham Gesner</a></li> <li><a href="/Bancroft_Gherardi" title="Bancroft Gherardi">Bancroft Gherardi</a></li> <li><a href="/Oral-History:Sam_Gibbs" title="Oral-History:Sam Gibbs">Oral-History:Sam Gibbs</a></li> <li><a href="/Peter_Glaser" title="Peter Glaser">Peter Glaser</a></li> <li><a href="/Oral-History:Frank_W._Godsey" title="Oral-History:Frank W. Godsey">Oral-History:Frank W. Godsey</a></li> <li><a href="/Frank_W._Godsey,_Jr." title="Frank W. Godsey, Jr.">Frank W. Godsey, Jr.</a></li> <li><a href="/Oral-History:Adolf_Goetzberger" title="Oral-History:Adolf Goetzberger">Oral-History:Adolf Goetzberger</a></li> <li><a href="/Oral-History:Gene_Golub" title="Oral-History:Gene Golub">Oral-History:Gene Golub</a></li> <li><a href="/William_E._Good" title="William E. Good">William E. Good</a></li> <li><a href="/John_Bannister_Goodenough" title="John Bannister Goodenough">John Bannister Goodenough</a></li> <li><a href="/Z%C3%A9nobe-Th%C3%A9ophile_Gramme" title="Zénobe-Théophile Gramme">Zénobe-Théophile Gramme</a></li> <li><a href="/Oral-History:John_Gregory" title="Oral-History:John Gregory">Oral-History:John Gregory</a></li> <li><a href="/The_History_of_Making_the_Grid_Smart" title="The History of Making the Grid Smart">The History of Making the Grid Smart</a></li> <li><a href="/Oral-History:Alain_Gringarten" title="Oral-History:Alain Gringarten">Oral-History:Alain Gringarten</a></li> <li><a href="/Samuel_B._Griscom" title="Samuel B. Griscom">Samuel B. Griscom</a></li> <li><a href="/William_Robert_Grove" title="William Robert Grove">William Robert Grove</a></li> <li><a href="/Guar_in_Fracturing_Fluid" title="Guar in Fracturing Fluid">Guar in Fracturing Fluid</a></li> <li><a href="/Oral-History:Klaus_Gueldenpfennig" title="Oral-History:Klaus Gueldenpfennig">Oral-History:Klaus Gueldenpfennig</a></li> <li><a href="/Oral-History:Vince_Gulden" title="Oral-History:Vince Gulden">Oral-History:Vince Gulden</a></li> <li><a href="/Gulf_of_Mexico_Drilling" title="Gulf of Mexico Drilling">Gulf of Mexico Drilling</a></li> <li><a href="/Gulf_of_Mexico_Exploratory_Tract" title="Gulf of Mexico Exploratory Tract">Gulf of Mexico Exploratory Tract</a></li> <li><a href="/Oral-History:Satya_Gupta" title="Oral-History:Satya Gupta">Oral-History:Satya Gupta</a></li> <li><a href="/Guyed_Tower" title="Guyed Tower">Guyed Tower</a></li> <li><a href="/Johannes_G%C3%B6rges" title="Johannes Görges">Johannes Görges</a></li></ul></div><div class="mw-category-group"><h3>H</h3> <ul><li><a href="/Lawrence_Hafstad" title="Lawrence Hafstad">Lawrence Hafstad</a></li> <li><a href="/Michel_T._Halbouty" title="Michel T. Halbouty">Michel T. Halbouty</a></li> <li><a href="/Erle_P._Halliburton" title="Erle P. Halliburton">Erle P. Halliburton</a></li> <li><a href="/Herman_Halperin" title="Herman Halperin">Herman Halperin</a></li> <li><a href="/William_Joseph_Hammer" title="William Joseph Hammer">William Joseph Hammer</a></li> <li><a href="/Oral-History:Ki_Sun_Han" title="Oral-History:Ki Sun Han">Oral-History:Ki Sun Han</a></li> <li><a href="/Fred_C._Hanker" title="Fred C. Hanker">Fred C. Hanker</a></li> <li><a href="/Clinton_Richards_Hanna" title="Clinton Richards Hanna">Clinton Richards Hanna</a></li> <li><a href="/Oral-History:Don_Hannegan" title="Oral-History:Don Hannegan">Oral-History:Don Hannegan</a></li> <li><a href="/Archives:Calculating_Power:_Edwin_L_Harder_and_Analog_Computing_in_the_Electric_Power_Industry" title="Archives:Calculating Power: Edwin L Harder and Analog Computing in the Electric Power Industry">Archives:Calculating Power: Edwin L Harder and Analog Computing in the Electric Power Industry</a></li> <li><a href="/Oral-History:Edwin_Harder" title="Oral-History:Edwin Harder">Oral-History:Edwin Harder</a></li> <li><a href="/Oral-History:Keld_Harder" title="Oral-History:Keld Harder">Oral-History:Keld Harder</a></li> <li><a href="/Oral-History:Charles_Harper" title="Oral-History:Charles Harper">Oral-History:Charles Harper</a></li> <li><a href="/Arthur_Hauspurg" title="Arthur Hauspurg">Arthur Hauspurg</a></li> <li><a href="/Oral-History:Floyd_Hayhurst" title="Oral-History:Floyd Hayhurst">Oral-History:Floyd Hayhurst</a></li> <li><a href="/Oral-History:Byron_Haynes" title="Oral-History:Byron Haynes">Oral-History:Byron Haynes</a></li> <li><a href="/Oral-History:Gwen_Hays" title="Oral-History:Gwen Hays">Oral-History:Gwen Hays</a></li> <li><a href="/Jinliang_He" title="Jinliang He">Jinliang He</a></li> <li><a href="/First-Hand:Heat_Losses_in_Isolated-Phase_Bus_Enclosures" title="First-Hand:Heat Losses in Isolated-Phase Bus Enclosures">First-Hand:Heat Losses in Isolated-Phase Bus Enclosures</a></li> <li><a href="/George_Hecht" title="George Hecht">George Hecht</a></li> <li><a href="/Hecna" title="Hecna">Hecna</a></li> <li><a href="/Hans_H%C3%B6fer_von_Heimhalt" title="Hans Höfer von Heimhalt">Hans Höfer von Heimhalt</a></li> <li><a href="/Oral-History:Martin_Hellman" title="Oral-History:Martin Hellman">Oral-History:Martin Hellman</a></li> <li><a href="/Archives:Papers_of_Rudolf_E._Hellmund" title="Archives:Papers of Rudolf E. Hellmund">Archives:Papers of Rudolf E. Hellmund</a></li> <li><span class="redirect-in-category"><a href="/Henri_Doll" class="mw-redirect" title="Henri Doll">Henri Doll</a></span></li> <li><a href="/Beulah_Louise_Henry" title="Beulah Louise Henry">Beulah Louise Henry</a></li> <li><a href="/Pieter_Hereema" title="Pieter Hereema">Pieter Hereema</a></li> <li><a href="/Archives:Papers_of_Carl_Hering" title="Archives:Papers of Carl Hering">Archives:Papers of Carl Hering</a></li> <li><a href="/Erling_Hesla" title="Erling Hesla">Erling Hesla</a></li> <li><a href="/L._F._Hickernell" title="L. F. Hickernell">L. F. Hickernell</a></li> <li><a href="/High-temperature_Cement" title="High-temperature Cement">High-temperature Cement</a></li> <li><a href="/Charles_R._Higson" title="Charles R. Higson">Charles R. Higson</a></li> <li><a href="/Narain_G._Hingorani" title="Narain G. Hingorani">Narain G. Hingorani</a></li> <li><a href="/Theodore_W._Hissey,_Jr" title="Theodore W. Hissey, Jr">Theodore W. Hissey, Jr</a></li> <li><a href="/First-Hand:History_of_Operational_Safety_Awareness_in_the_US_Gulf_of_Mexico_1964_to_2014:_A_personal_recollection_by_Kenneth_E._(KEN)_Arnold" title="First-Hand:History of Operational Safety Awareness in the US Gulf of Mexico 1964 to 2014: A personal recollection by Kenneth E. (KEN) Arnold">First-Hand:History of Operational Safety Awareness in the US Gulf of Mexico 1964 to 2014: A personal recollection by Kenneth E. (KEN) Arnold</a></li> <li><a href="/Milo_P._Hnilicka" title="Milo P. Hnilicka">Milo P. Hnilicka</a></li> <li><a href="/Martin_Hochstadter" title="Martin Hochstadter">Martin Hochstadter</a></li> <li><a href="/Oral-History:Stephen_Holditch" title="Oral-History:Stephen Holditch">Oral-History:Stephen Holditch</a></li> <li><a href="/Charles_H._Holley" title="Charles H. Holley">Charles H. Holley</a></li> <li><a href="/Oral-History:Knud_Holst" title="Oral-History:Knud Holst">Oral-History:Knud Holst</a></li> <li><a href="/Morris_D._Hooven" title="Morris D. Hooven">Morris D. Hooven</a></li> <li><a href="/Horizontal_Drilling" title="Horizontal Drilling">Horizontal Drilling</a></li> <li><a href="/Horizontal_Drilling_Offshore" title="Horizontal Drilling Offshore">Horizontal Drilling Offshore</a></li> <li><a href="/Horizontal_Well_Drilling" title="Horizontal Well Drilling">Horizontal Well Drilling</a></li> <li><a href="/Oral-History:Roland_N._Horne" title="Oral-History:Roland N. Horne">Oral-History:Roland N. Horne</a></li> <li><a href="/Household_Appliances_and_Women%27s_Work" title="Household Appliances and Women's Work">Household Appliances and Women's Work</a></li> <li><a href="/J._Elmer_Housley" title="J. Elmer Housley">J. Elmer Housley</a></li> <li><a href="/Archives:Papers_of_J.E._Housley" title="Archives:Papers of J.E. Housley">Archives:Papers of J.E. Housley</a></li> <li><a href="/First-Hand:How_I_Chose_My_Profession" title="First-Hand:How I Chose My Profession">First-Hand:How I Chose My Profession</a></li> <li><a href="/First-Hand:How_to_Fix_a_Broken_Computer" title="First-Hand:How to Fix a Broken Computer">First-Hand:How to Fix a Broken Computer</a></li> <li><a href="/First-Hand:How_we_learned_to_drill_the_pressurized_shale_in_the_Gulf_of_Mexico:_one_person%27s_recollection" title="First-Hand:How we learned to drill the pressurized shale in the Gulf of Mexico: one person's recollection">First-Hand:How we learned to drill the pressurized shale in the Gulf of Mexico: one person's recollection</a></li> <li><a href="/Oral-History:Thomas_Huang" title="Oral-History:Thomas Huang">Oral-History:Thomas Huang</a></li> <li><a href="/M._King_Hubbert" title="M. King Hubbert">M. King Hubbert</a></li> <li><a href="/Shu_Yuen_Ron_Hui" title="Shu Yuen Ron Hui">Shu Yuen Ron Hui</a></li> <li><a href="/Oral-History:Roger_Hull" title="Oral-History:Roger Hull">Oral-History:Roger Hull</a></li> <li><a href="/Oral-History:C.A._Hutchinson" title="Oral-History:C.A. Hutchinson">Oral-History:C.A. Hutchinson</a></li> <li><a href="/Archives:Papers_of_F.L._Hutchinson" title="Archives:Papers of F.L. Hutchinson">Archives:Papers of F.L. Hutchinson</a></li> <li><a href="/Hydraulic_Fracturing" title="Hydraulic Fracturing">Hydraulic Fracturing</a></li></ul></div><div class="mw-category-group"><h3>I</h3> <ul><li><a href="/Masayuki_Ieda" title="Masayuki Ieda">Masayuki Ieda</a></li> <li><a href="/Archives:IEEE_History_Center_Book_Publishing" title="Archives:IEEE History Center Book Publishing">Archives:IEEE History Center Book Publishing</a></li> <li><a href="/IEEE_Power_%26_Energy_Society_History" title="IEEE Power & Energy Society History">IEEE Power & Energy Society History</a></li> <li><a href="/Archives:IEEE_Power_Engineering_Review_Historical_Articles" title="Archives:IEEE Power Engineering Review Historical Articles">Archives:IEEE Power Engineering Review Historical Articles</a></li> <li><a href="/Oral-History:Egbert_U._Imomoh" title="Oral-History:Egbert U. Imomoh">Oral-History:Egbert U. Imomoh</a></li> <li><a href="/Induction_Ring" title="Induction Ring">Induction Ring</a></li> <li><a href="/IEEE_Industrial_Electronics_Society_History" title="IEEE Industrial Electronics Society History">IEEE Industrial Electronics Society History</a></li> <li><a href="/IEEE_Industry_Applications_Society_History" title="IEEE Industry Applications Society History">IEEE Industry Applications Society History</a></li> <li><a href="/Archives:Infrared_-_The_New_Dimension_for_Electronics_and_Materials_Evaluation" title="Archives:Infrared - The New Dimension for Electronics and Materials Evaluation">Archives:Infrared - The New Dimension for Electronics and Materials Evaluation</a></li> <li><a href="/Initial_Tesla_Polyphase_/_%22Three-Phase%22_Alternating-Current_Systems_and_Metering_Development" title="Initial Tesla Polyphase / "Three-Phase" Alternating-Current Systems and Metering Development">Initial Tesla Polyphase / "Three-Phase" Alternating-Current Systems and Metering Development</a></li> <li><a href="/Samuel_Insull" title="Samuel Insull">Samuel Insull</a></li> <li><a href="/Invert_Emulsions" title="Invert Emulsions">Invert Emulsions</a></li></ul></div><div class="mw-category-group"><h3>J</h3> <ul><li><a href="/Jack-up_Drilling_Rig" title="Jack-up Drilling Rig">Jack-up Drilling Rig</a></li> <li><a href="/Dugald_C._Jackson" title="Dugald C. Jackson">Dugald C. Jackson</a></li> <li><a href="/First-Hand:Jacques_L._Elbel" title="First-Hand:Jacques L. Elbel">First-Hand:Jacques L. Elbel</a></li> <li><a href="/Gunnar_Jancke" title="Gunnar Jancke">Gunnar Jancke</a></li> <li><a href="/Archives:Progress_in_the_Electronic_Components_Industry_in_Japan_after_World_War_II" title="Archives:Progress in the Electronic Components Industry in Japan after World War II">Archives:Progress in the Electronic Components Industry in Japan after World War II</a></li> <li><a href="/Jack_L._Jatlow" title="Jack L. Jatlow">Jack L. Jatlow</a></li> <li><a href="/Oral-History:Jacob_Jensen" title="Oral-History:Jacob Jensen">Oral-History:Jacob Jensen</a></li> <li><a href="/Jet_Engine" title="Jet Engine">Jet Engine</a></li> <li><a href="/Oral-History:Amos_Joel_(1992)" title="Oral-History:Amos Joel (1992)">Oral-History:Amos Joel (1992)</a></li> <li><a href="/Eldridge_Johnson" title="Eldridge Johnson">Eldridge Johnson</a></li> <li><a href="/Archives:Papers_of_Joseph_Allen_Johnson" title="Archives:Papers of Joseph Allen Johnson">Archives:Papers of Joseph Allen Johnson</a></li> <li><a href="/Oral-History:Jim_Jorden" title="Oral-History:Jim Jorden">Oral-History:Jim Jorden</a></li> <li><a href="/Murray_Joslin" title="Murray Joslin">Murray Joslin</a></li> <li><a href="/Archives:Journal_of_Petroleum_Engineering_50th_Anniversary_Issue" title="Archives:Journal of Petroleum Engineering 50th Anniversary Issue">Archives:Journal of Petroleum Engineering 50th Anniversary Issue</a></li> <li><a href="/Oral-History:Janeen_Judah" title="Oral-History:Janeen Judah">Oral-History:Janeen Judah</a></li> <li><a href="/Paul_B._Juhnke" title="Paul B. Juhnke">Paul B. Juhnke</a></li> <li><a href="/Peter_Junkersfeld" title="Peter Junkersfeld">Peter Junkersfeld</a></li></ul></div><div class="mw-category-group"><h3>K</h3> <ul><li><a href="/Innocent_Kamwa" title="Innocent Kamwa">Innocent Kamwa</a></li> <li><a href="/Oral-History:In-Ku_Kang" title="Oral-History:In-Ku Kang">Oral-History:In-Ku Kang</a></li> <li><a href="/Oral-History:Jin_Ku_Kang" title="Oral-History:Jin Ku Kang">Oral-History:Jin Ku Kang</a></li> <li><a href="/Oral-History:Ki_Dong_Kang" title="Oral-History:Ki Dong Kang">Oral-History:Ki Dong Kang</a></li> <li><a href="/Oral-History:Sung_Mo_(Steve)_Kang" title="Oral-History:Sung Mo (Steve) Kang">Oral-History:Sung Mo (Steve) Kang</a></li> <li><a href="/Oral-History:Mitchell_Kapor" title="Oral-History:Mitchell Kapor">Oral-History:Mitchell Kapor</a></li> <li><a href="/John_Clarence_Karcher" title="John Clarence Karcher">John Clarence Karcher</a></li> <li><a href="/Oral-History:Walter_Karplus" title="Oral-History:Walter Karplus">Oral-History:Walter Karplus</a></li> <li><a href="/Marian_P._Kazmierkowski" title="Marian P. Kazmierkowski">Marian P. Kazmierkowski</a></li> <li><a href="/Arthur_Henry_Kehoe" title="Arthur Henry Kehoe">Arthur Henry Kehoe</a></li> <li><a href="/Leander_Kellam" title="Leander Kellam">Leander Kellam</a></li> <li><a href="/Oral-History:Warren_A._Kesselman" title="Oral-History:Warren A. Kesselman">Oral-History:Warren A. Kesselman</a></li> <li><a href="/Samuel_Martin_Kier" title="Samuel Martin Kier">Samuel Martin Kier</a></li> <li><a href="/Oral-History:Nobutoshi_Kihara" title="Oral-History:Nobutoshi Kihara">Oral-History:Nobutoshi Kihara</a></li> <li><a href="/Oral-History:Makoto_Kikuchi" title="Oral-History:Makoto Kikuchi">Oral-History:Makoto Kikuchi</a></li> <li><a href="/Lee_A._Kilgore" title="Lee A. Kilgore">Lee A. Kilgore</a></li> <li><a href="/Oral-History:Lee_Kilgore" title="Oral-History:Lee Kilgore">Oral-History:Lee Kilgore</a></li> <li><a href="/Oral-History:Yong_Sun_Kim" title="Oral-History:Yong Sun Kim">Oral-History:Yong Sun Kim</a></li> <li><a href="/Oral-History:Dieter_Kind" title="Oral-History:Dieter Kind">Oral-History:Dieter Kind</a></li> <li><a href="/Leon_K._Kirchmayer" title="Leon K. Kirchmayer">Leon K. Kirchmayer</a></li> <li><a href="/Eldo_C._Koenig" title="Eldo C. Koenig">Eldo C. Koenig</a></li> <li><a href="/Oral-History:Petar_Kokotovic_(1995)" title="Oral-History:Petar Kokotovic (1995)">Oral-History:Petar Kokotovic (1995)</a></li> <li><a href="/George_Kozmetsky" title="George Kozmetsky">George Kozmetsky</a></li> <li><a href="/Oral-History:Norman_B._Krim_(1984)" title="Oral-History:Norman B. Krim (1984)">Oral-History:Norman B. Krim (1984)</a></li> <li><a href="/Milestones:Krka-%C5%A0ibenik_Electric_Power_System,_1895" title="Milestones:Krka-Šibenik Electric Power System, 1895">Milestones:Krka-Šibenik Electric Power System, 1895</a></li> <li><a href="/John_Kruesi" title="John Kruesi">John Kruesi</a></li> <li><a href="/Oral-History:Fikri_Kuchuk" title="Oral-History:Fikri Kuchuk">Oral-History:Fikri Kuchuk</a></li> <li><a href="/Prabha_Kundur" title="Prabha Kundur">Prabha Kundur</a></li> <li><a href="/Milestones:Kurobe_River_No._4_Hydropower_Plant,_1956-63" title="Milestones:Kurobe River No. 4 Hydropower Plant, 1956-63">Milestones:Kurobe River No. 4 Hydropower Plant, 1956-63</a></li></ul></div><div class="mw-category-group"><h3>L</h3> <ul><li><a href="/Carthrae_Merrette_Laffoon" title="Carthrae Merrette Laffoon">Carthrae Merrette Laffoon</a></li> <li><a href="/Oral-History:Larry_Lake" title="Oral-History:Larry Lake">Oral-History:Larry Lake</a></li> <li><a href="/Dietrich_R._Lambrecht" title="Dietrich R. Lambrecht">Dietrich R. Lambrecht</a></li> <li><a href="/A._Uno_Lamm" title="A. Uno Lamm">A. Uno Lamm</a></li> <li><a href="/Benjamin_G._Lamme" title="Benjamin G. Lamme">Benjamin G. Lamme</a></li> <li><a href="/Archives:Papers_of_B.G._Lamme" title="Archives:Papers of B.G. Lamme">Archives:Papers of B.G. Lamme</a></li> <li><a href="/James_Lansing" title="James Lansing">James Lansing</a></li> <li><a href="/Oral-History:Pierre_Lapostolle" title="Oral-History:Pierre Lapostolle">Oral-History:Pierre Lapostolle</a></li> <li><a href="/Oral-History:Jay_Lathrop" title="Oral-History:Jay Lathrop">Oral-History:Jay Lathrop</a></li> <li><a href="/Chronology_of_the_early_Latin_American_petroleum_history" title="Chronology of the early Latin American petroleum history">Chronology of the early Latin American petroleum history</a></li> <li><a href="/Oral-History:Robert_Lawrence" title="Oral-History:Robert Lawrence">Oral-History:Robert Lawrence</a></li> <li><a href="/Robert_Lawrence" title="Robert Lawrence">Robert Lawrence</a></li> <li><a href="/First-Hand:LearJet,_Auto_Pilot_and_Eight_Tracks" title="First-Hand:LearJet, Auto Pilot and Eight Tracks">First-Hand:LearJet, Auto Pilot and Eight Tracks</a></li> <li><a href="/First-Hand:Learning_by_Serendipity" title="First-Hand:Learning by Serendipity">First-Hand:Learning by Serendipity</a></li> <li><a href="/Everett_Lee" title="Everett Lee">Everett Lee</a></li> <li><a href="/Fred_C._Lee" title="Fred C. Lee">Fred C. Lee</a></li> <li><a href="/Archives:Papers_of_W.S._Lee" title="Archives:Papers of W.S. Lee">Archives:Papers of W.S. Lee</a></li> <li><a href="/Oral-History:W._John_Lee" title="Oral-History:W. John Lee">Oral-History:W. John Lee</a></li> <li><a href="/William_Lee" title="William Lee">William Lee</a></li> <li><a href="/Oral-History:Gerard_Lehmann" title="Oral-History:Gerard Lehmann">Oral-History:Gerard Lehmann</a></li> <li><a href="/John_Lieb" title="John Lieb">John Lieb</a></li> <li><a href="/Archives:Papers_of_J.W._Lieb_Jr." title="Archives:Papers of J.W. Lieb Jr.">Archives:Papers of J.W. Lieb Jr.</a></li> <li><a href="/Lift_Capacity_Record" title="Lift Capacity Record">Lift Capacity Record</a></li> <li><a href="/Early_Light_Bulbs" title="Early Light Bulbs">Early Light Bulbs</a></li> <li><a href="/Paul_Lincoln" title="Paul Lincoln">Paul Lincoln</a></li> <li><a href="/Thomas_A._Lipo" title="Thomas A. Lipo">Thomas A. Lipo</a></li> <li><a href="/Horace_P._Liversidge" title="Horace P. Liversidge">Horace P. Liversidge</a></li> <li><a href="/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="/Logging_While_Drilling" title="Logging While Drilling">Logging While Drilling</a></li> <li><a href="/London%27s_Electrified_Subway" title="London's Electrified Subway">London's Electrified Subway</a></li> <li><a href="/Oral-History:Antonio_Luque_Lopez" title="Oral-History:Antonio Luque Lopez">Oral-History:Antonio Luque Lopez</a></li> <li><a href="/Loudspeakers" title="Loudspeakers">Loudspeakers</a></li> <li><a href="/Arthur_Lubinski" title="Arthur Lubinski">Arthur Lubinski</a></li></ul></div><div class="mw-category-group"><h3>M</h3> <ul><li><a href="/Archives:Papers_of_Alexander_M._MacCutcheon" title="Archives:Papers of Alexander M. MacCutcheon">Archives:Papers of Alexander M. MacCutcheon</a></li> <li><a href="/Archives:Papers_of_C.O._Mailloux" title="Archives:Papers of C.O. Mailloux">Archives:Papers of C.O. Mailloux</a></li> <li><a href="/Milestones:Mainline_Electrification_of_the_Baltimore_and_Ohio_Railroad,_1895" title="Milestones:Mainline Electrification of the Baltimore and Ohio Railroad, 1895">Milestones:Mainline Electrification of the Baltimore and Ohio Railroad, 1895</a></li> <li><a href="/Manhattan_Electrification" title="Manhattan Electrification">Manhattan Electrification</a></li> <li><a href="/Archives:Competition_and_Consolidation_in_the_Electrical_Manufacturing_Industry,_1889-1892" title="Archives:Competition and Consolidation in the Electrical Manufacturing Industry, 1889-1892">Archives:Competition and Consolidation in the Electrical Manufacturing Industry, 1889-1892</a></li> <li><a href="/T._Commerford_Martin" title="T. Commerford Martin">T. Commerford Martin</a></li> <li><a href="/Oral-History:James_L._Massey" title="Oral-History:James L. Massey">Oral-History:James L. Massey</a></li> <li><a href="/Oral-History:William_C._Maurer" title="Oral-History:William C. Maurer">Oral-History:William C. Maurer</a></li> <li><a href="/Oral-History:Ferdy_Mayer" title="Oral-History:Ferdy Mayer">Oral-History:Ferdy Mayer</a></li> <li><a href="/Stephen_McArthur" title="Stephen McArthur">Stephen McArthur</a></li> <li><a href="/William_McClellan" title="William McClellan">William McClellan</a></li> <li><a href="/L._Bruce_McClung" title="L. Bruce McClung">L. Bruce McClung</a></li> <li><a href="/Dean_McGee" title="Dean McGee">Dean McGee</a></li> <li><a href="/Mark_McGranaghan" title="Mark McGranaghan">Mark McGranaghan</a></li> <li><a href="/Oral-History:Harry_O._McLeod,_Jr." title="Oral-History:Harry O. McLeod, Jr.">Oral-History:Harry O. McLeod, Jr.</a></li> <li><a href="/William_McMurray" title="William McMurray">William McMurray</a></li> <li><a href="/Andrew_G.L._McNaughton" title="Andrew G.L. McNaughton">Andrew G.L. McNaughton</a></li> <li><a href="/Oral-History:John_McPherson" title="Oral-History:John McPherson">Oral-History:John McPherson</a></li> <li><a href="/Ian_C._McRae" title="Ian C. McRae">Ian C. McRae</a></li> <li><a href="/Measurement-While-Drilling" title="Measurement-While-Drilling">Measurement-While-Drilling</a></li> <li><a href="/Oral-History:Nathan_Meehan" title="Oral-History:Nathan Meehan">Oral-History:Nathan Meehan</a></li> <li><a href="/Alexander_Meissner" title="Alexander Meissner">Alexander Meissner</a></li> <li><a href="/First-Hand:Memories_of_Working_in_Hydraulic_Fracturing" title="First-Hand:Memories of Working in Hydraulic Fracturing">First-Hand:Memories of Working in Hydraulic Fracturing</a></li> <li><a href="/MEMS" title="MEMS">MEMS</a></li> <li><a href="/Oral-History:Lou_Meren" title="Oral-History:Lou Meren">Oral-History:Lou Meren</a></li> <li><a href="/Ralph_Merkle" title="Ralph Merkle">Ralph Merkle</a></li> <li><a href="/Thaddeus_W._Mermel" title="Thaddeus W. Mermel">Thaddeus W. Mermel</a></li> <li><a href="/Ezra_B._Merriam" title="Ezra B. Merriam">Ezra B. Merriam</a></li> <li><a href="/Ralph_Mershon" title="Ralph Mershon">Ralph Mershon</a></li> <li><a href="/Hugo_K._Messerle" title="Hugo K. Messerle">Hugo K. Messerle</a></li> <li><a href="/Archives:Papers_of_Edward_B._Meyer" title="Archives:Papers of Edward B. Meyer">Archives:Papers of Edward B. Meyer</a></li> <li><a href="/Microphone" title="Microphone">Microphone</a></li> <li><a href="/Microwave_Ovens" title="Microwave Ovens">Microwave Ovens</a></li> <li><a href="/Milestones:Mill_Creek_No._1_Hydroelectric_Plant,_1893" title="Milestones:Mill Creek No. 1 Hydroelectric Plant, 1893">Milestones:Mill Creek No. 1 Hydroelectric Plant, 1893</a></li> <li><a href="/Ludger_Benedikt_Mintrop" title="Ludger Benedikt Mintrop">Ludger Benedikt Mintrop</a></li> <li><a href="/Oral-History:Jennifer_Miskimins" title="Oral-History:Jennifer Miskimins">Oral-History:Jennifer Miskimins</a></li> <li><a href="/Masahiko_Miyaki" title="Masahiko Miyaki">Masahiko Miyaki</a></li> <li><a href="/Oral-History:John_Moll" title="Oral-History:John Moll">Oral-History:John Moll</a></li> <li><a href="/Oral-History:Carl_Montgomery" title="Oral-History:Carl Montgomery">Oral-History:Carl Montgomery</a></li> <li><a href="/First-Hand:More_Contributions_of_Russell_E._Theisen" title="First-Hand:More Contributions of Russell E. Theisen">First-Hand:More Contributions of Russell E. Theisen</a></li> <li><a href="/Oral-History:Fusao_Mori" title="Oral-History:Fusao Mori">Oral-History:Fusao Mori</a></li> <li><a href="/Soren_Hanson_Mortensen" title="Soren Hanson Mortensen">Soren Hanson Mortensen</a></li> <li><a href="/Archives:How_They_Won_the_Market_Electric_Motors_in_Competition_with_Steam_Engines,_1890-1925" title="Archives:How They Won the Market Electric Motors in Competition with Steam Engines, 1890-1925">Archives:How They Won the Market Electric Motors in Competition with Steam Engines, 1890-1925</a></li> <li><a href="/Charles_John_Mozina" title="Charles John Mozina">Charles John Mozina</a></li> <li><a href="/Mud-pulse_Telemetry" title="Mud-pulse Telemetry">Mud-pulse Telemetry</a></li> <li><a href="/Oral-History:Robert_Mumma" title="Oral-History:Robert Mumma">Oral-History:Robert Mumma</a></li> <li><a href="/Oral-History:Nancy_Musick" title="Oral-History:Nancy Musick">Oral-History:Nancy Musick</a></li> <li><a href="/Morris_Muskat" title="Morris Muskat">Morris Muskat</a></li> <li><a href="/Oral-History:Hans_Musmann" title="Oral-History:Hans Musmann">Oral-History:Hans Musmann</a></li> <li><a href="/First-Hand:My_Career_as_an_Electrical_Consultant" title="First-Hand:My Career as an Electrical Consultant">First-Hand:My Career as an Electrical Consultant</a></li> <li><a href="/First-Hand:My_Experiences_at_Westinghouse" title="First-Hand:My Experiences at Westinghouse">First-Hand:My Experiences at Westinghouse</a></li> <li><a href="/First-Hand:My_Life_in_Power_Electronics" title="First-Hand:My Life in Power Electronics">First-Hand:My Life in Power Electronics</a></li> <li><a href="/First-Hand:My_Life_Over_60_Years_in_the_Development_of_Our_National_Energy_Systems" title="First-Hand:My Life Over 60 Years in the Development of Our National Energy Systems">First-Hand:My Life Over 60 Years in the Development of Our National Energy Systems</a></li> <li><a href="/First-Hand:My_recollections_of_50_years_in_Electronics" title="First-Hand:My recollections of 50 years in Electronics">First-Hand:My recollections of 50 years in Electronics</a></li> <li><a href="/First-Hand:My_Saturn_5_Experiences" title="First-Hand:My Saturn 5 Experiences">First-Hand:My Saturn 5 Experiences</a></li></ul></div><div class="mw-category-group"><h3>N</h3> <ul><li><a href="/Oral-History:Troy_Nagle" title="Oral-History:Troy Nagle">Oral-History:Troy Nagle</a></li> <li><a href="/Akio_Nakagawa" title="Akio Nakagawa">Akio Nakagawa</a></li> <li><a href="/Oral-History:Heitaro_Nakajima" title="Oral-History:Heitaro Nakajima">Oral-History:Heitaro Nakajima</a></li> <li><a href="/Milestones:Nelson_River_HVDC_Transmission_System,_1972" title="Milestones:Nelson River HVDC Transmission System, 1972">Milestones:Nelson River HVDC Transmission System, 1972</a></li> <li><a href="/Thomas_Newcomen_and_the_Steam_Engine" title="Thomas Newcomen and the Steam Engine">Thomas Newcomen and the Steam Engine</a></li> <li><a href="/Oral-History:Shauna_Noonan" title="Oral-History:Shauna Noonan">Oral-History:Shauna Noonan</a></li> <li><a href="/First-Hand:Norman_Bleshman,_Chairman_of_the_Power_and_Industrial_Division_(NY)" title="First-Hand:Norman Bleshman, Chairman of the Power and Industrial Division (NY)">First-Hand:Norman Bleshman, Chairman of the Power and Industrial Division (NY)</a></li> <li><a href="/Emanuel_R._Northmore" title="Emanuel R. Northmore">Emanuel R. Northmore</a></li> <li><a href="/Nuclear_Power_Plants" title="Nuclear Power Plants">Nuclear Power Plants</a></li> <li><a href="/Oral-History:Herb_Nunnally" title="Oral-History:Herb Nunnally">Oral-History:Herb Nunnally</a></li></ul></div><div class="mw-category-group"><h3>O</h3> <ul><li><a href="/O-ring_Sealed_Journal_Bearing_Drill" title="O-ring Sealed Journal Bearing Drill">O-ring Sealed Journal Bearing Drill</a></li> <li><a href="/Obninsk_Nuclear_Power_Plant" title="Obninsk Nuclear Power Plant">Obninsk Nuclear Power Plant</a></li> <li><a href="/Octane_Number" title="Octane Number">Octane Number</a></li> <li><a href="/Aziz_Odeh" title="Aziz Odeh">Aziz Odeh</a></li> <li><a href="/First_Steps_Offshore" title="First Steps Offshore">First Steps Offshore</a></li> <li><a href="/Offshore_Alaska_Exploration" title="Offshore Alaska Exploration">Offshore Alaska Exploration</a></li> <li><a href="/Offshore_Driling" title="Offshore Driling">Offshore Driling</a></li> <li><a href="/Ohio_Brass_High_Voltage_Laboratories" title="Ohio Brass High Voltage Laboratories">Ohio Brass High Voltage Laboratories</a></li> <li><a href="/Russell_Ohl" title="Russell Ohl">Russell Ohl</a></li> <li><a href="/Eiichi_Ohno" title="Eiichi Ohno">Eiichi Ohno</a></li> <li><a href="/Beginnings_of_the_Oil_and_Gas_Industry" title="Beginnings of the Oil and Gas Industry">Beginnings of the Oil and Gas Industry</a></li> <li><a href="/Oil_Discovered_in_Cook_Inlet" title="Oil Discovered in Cook Inlet">Oil Discovered in Cook Inlet</a></li> <li><a href="/Oil_First_Discovered_in_US" title="Oil First Discovered in US">Oil First Discovered in US</a></li> <li><a href="/Oil_Sands_Production" title="Oil Sands Production">Oil Sands Production</a></li> <li><a href="/Oil_tankers" title="Oil tankers">Oil tankers</a></li> <li><a href="/Oral-History:Henry_Oman" title="Oral-History:Henry Oman">Oral-History:Henry Oman</a></li> <li><a href="/On_screen_VCR_programming_guide_(Patent)" title="On screen VCR programming guide (Patent)">On screen VCR programming guide (Patent)</a></li> <li><a href="/First-Hand:Origin_of_Toshiba_Computer_Software_Product_Line_COPOS_and_PODIA_for_Power-Generation_Plant_and_its_induction_into_the_Software_Product_Line_Hall_of_Fame_at_Carnegie_Mellon_University" title="First-Hand:Origin of Toshiba Computer Software Product Line COPOS and PODIA for Power-Generation Plant and its induction into the Software Product Line Hall of Fame at Carnegie Mellon University">First-Hand:Origin of Toshiba Computer Software Product Line COPOS and PODIA for Power-Generation Plant and its induction into the Software Product Line Hall of Fame at Carnegie Mellon University</a></li> <li><a href="/Harold_Osborne" title="Harold Osborne">Harold Osborne</a></li> <li><a href="/Archives:Papers_of_Farley_Osgood" title="Archives:Papers of Farley Osgood">Archives:Papers of Farley Osgood</a></li></ul></div><div class="mw-category-group"><h3>P</h3> <ul><li><a href="/Antonio_Pacinotti" title="Antonio Pacinotti">Antonio Pacinotti</a></li> <li><a href="/Archives:Papers_of_Antonio_Pacinotti" title="Archives:Papers of Antonio Pacinotti">Archives:Papers of Antonio Pacinotti</a></li> <li><a href="/Jayanta_K._Pal" title="Jayanta K. Pal">Jayanta K. Pal</a></li> <li><a href="/Oral-History:Jorgen_Palshoj" title="Oral-History:Jorgen Palshoj">Oral-History:Jorgen Palshoj</a></li> <li><a href="/Basil_Papadias" title="Basil Papadias">Basil Papadias</a></li> <li><a href="/John_Castlereagh_Parker" title="John Castlereagh Parker">John Castlereagh Parker</a></li> <li><a href="/John_Patterson" title="John Patterson">John Patterson</a></li> <li><a href="/Oral-History:Aage_Pedersen" title="Oral-History:Aage Pedersen">Oral-History:Aage Pedersen</a></li> <li><a href="/Karen_S._Pedersen" title="Karen S. Pedersen">Karen S. Pedersen</a></li> <li><a href="/Frank_W._Peek" title="Frank W. Peek">Frank W. Peek</a></li> <li><a href="/Pelton_Wheel" title="Pelton Wheel">Pelton Wheel</a></li> <li><a href="/Oral-History:Arno_Penzias" title="Oral-History:Arno Penzias">Oral-History:Arno Penzias</a></li> <li><a href="/Oral-History:Vincent_Perry" title="Oral-History:Vincent Perry">Oral-History:Vincent Perry</a></li> <li><a href="/First-Hand:Peter_W._Sauer" title="First-Hand:Peter W. Sauer">First-Hand:Peter W. Sauer</a></li> <li><a href="/Petroleum" title="Petroleum">Petroleum</a></li> <li><a href="/The_Birth_of_Petroleum_Geological_Science" title="The Birth of Petroleum Geological Science">The Birth of Petroleum Geological Science</a></li> <li><a href="/Petroleum_Engineering" title="Petroleum Engineering">Petroleum Engineering</a></li> <li><a href="/Petroleum_Historical_Bibliography" title="Petroleum Historical Bibliography">Petroleum Historical Bibliography</a></li> <li><a href="/Petroleum_Storage_Tanks" title="Petroleum Storage Tanks">Petroleum Storage Tanks</a></li> <li><a href="/Petroleum_Transportation_Tanks" title="Petroleum Transportation Tanks">Petroleum Transportation Tanks</a></li> <li><a href="/First-Hand:Petros_N._Papas" title="First-Hand:Petros N. Papas">First-Hand:Petros N. Papas</a></li> <li><a href="/Olive_Scott_Petty" title="Olive Scott Petty">Olive Scott Petty</a></li> <li><a href="/Arun_G._Phadke" title="Arun G. Phadke">Arun G. Phadke</a></li> <li><a href="/Phonograph" title="Phonograph">Phonograph</a></li> <li><a href="/Milestones:Commercialization_and_Industrialization_of_Photovoltaic_Cells,_1959" title="Milestones:Commercialization and Industrialization of Photovoltaic Cells, 1959">Milestones:Commercialization and Industrialization of Photovoltaic Cells, 1959</a></li> <li><a href="/Milestones:Pinawa_Hydroelectric_Power_Project,_1906" title="Milestones:Pinawa Hydroelectric Power Project, 1906">Milestones:Pinawa Hydroelectric Power Project, 1906</a></li> <li><a href="/Piper_Alpha_Disaster" title="Piper Alpha Disaster">Piper Alpha Disaster</a></li> <li><a href="/Archives:Planning_a_Career_in_Power" title="Archives:Planning a Career in Power">Archives:Planning a Career in Power</a></li> <li><a href="/Gaston_Plant%C3%A9" title="Gaston Planté">Gaston Planté</a></li> <li><a href="/Polycrystalline_Diamond_Compact_Drill_Bit" title="Polycrystalline Diamond Compact Drill Bit">Polycrystalline Diamond Compact Drill Bit</a></li> <li><a href="/Oral-History:Steve_Poston" title="Oral-History:Steve Poston">Oral-History:Steve Poston</a></li> <li><a href="/Andrey_Abraham_Potter" title="Andrey Abraham Potter">Andrey Abraham Potter</a></li> <li><a href="/Charles_Powel" title="Charles Powel">Charles Powel</a></li> <li><a href="/IEEE_Power_Electronics_Society_History" title="IEEE Power Electronics Society History">IEEE Power Electronics Society History</a></li> <li><a href="/Archives:Power,_A_Survey_History_of_Electric_Power_Technology_Since_1945" title="Archives:Power, A Survey History of Electric Power Technology Since 1945">Archives:Power, A Survey History of Electric Power Technology Since 1945</a></li> <li><a href="/Power_electronics" title="Power electronics">Power electronics</a></li> <li><a href="/Milestones:Power_System_of_Boston%27s_Rapid_Transit,_1889" title="Milestones:Power System of Boston's Rapid Transit, 1889">Milestones:Power System of Boston's Rapid Transit, 1889</a></li> <li><a href="/Pramod_P._Khargonekar" title="Pramod P. Khargonekar">Pramod P. Khargonekar</a></li> <li><a href="/Wallace_E._Pratt" title="Wallace E. Pratt">Wallace E. Pratt</a></li> <li><a href="/Processing_Sulfur-Containing_Fuels" title="Processing Sulfur-Containing Fuels">Processing Sulfur-Containing Fuels</a></li> <li><a href="/IEEE_Product_Safety_Engineering_Society_History" title="IEEE Product Safety Engineering Society History">IEEE Product Safety Engineering Society History</a></li> <li><a href="/The_Beginnings_of_Production_Engineering" title="The Beginnings of Production Engineering">The Beginnings of Production Engineering</a></li> <li><a href="/First-Hand:Proposed_IEEE_%22Committee_on_Technologists%27_and_Engineers%27_Professionalism%22,_the_CTEP,_Walter_Elden" title="First-Hand:Proposed IEEE "Committee on Technologists' and Engineers' Professionalism", the CTEP, Walter Elden">First-Hand:Proposed IEEE "Committee on Technologists' and Engineers' Professionalism", the CTEP, Walter Elden</a></li> <li><a href="/Proppants" title="Proppants">Proppants</a></li> <li><a href="/Prudhoe_Bay" title="Prudhoe Bay">Prudhoe Bay</a></li> <li><a href="/First-Hand:Prudhoe_Bay_Permafrost,_the_Cold_War,_and_the_CIA:_Nothing_Can_Be_So_Bad_That_It_Cannot_Get_Worse" title="First-Hand:Prudhoe Bay Permafrost, the Cold War, and the CIA: Nothing Can Be So Bad That It Cannot Get Worse">First-Hand:Prudhoe Bay Permafrost, the Cold War, and the CIA: Nothing Can Be So Bad That It Cannot Get Worse</a></li> <li><a href="/Pump_Jacks" title="Pump Jacks">Pump Jacks</a></li> <li><a href="/Purpose-built_Pipelay_Vessels" title="Purpose-built Pipelay Vessels">Purpose-built Pipelay Vessels</a></li> <li><a href="/Palmer_Putnam%27s_1.5_MW_Wind_Turbine" title="Palmer Putnam's 1.5 MW Wind Turbine">Palmer Putnam's 1.5 MW Wind Turbine</a></li></ul></div><div class="mw-category-group"><h3>Q</h3> <ul><li><a href="/Quadraphonic_Stereo" title="Quadraphonic Stereo">Quadraphonic Stereo</a></li></ul></div><div class="mw-category-group"><h3>R</h3> <ul><li><a href="/Oral-History:Lawrence_Rabiner" title="Oral-History:Lawrence Rabiner">Oral-History:Lawrence Rabiner</a></li> <li><a href="/Saifur_Rahman" title="Saifur Rahman">Saifur Rahman</a></li> <li><a href="/The_Railway_Power_Stations_of_New_York_City" title="The Railway Power Stations of New York City">The Railway Power Stations of New York City</a></li> <li><a href="/Oral-History:Jan_Rajchman" title="Oral-History:Jan Rajchman">Oral-History:Jan Rajchman</a></li> <li><a href="/Henry_J._%22Hank%22_Ramey" title="Henry J. "Hank" Ramey">Henry J. "Hank" Ramey</a></li> <li><a href="/Oral-History:Ravindra_Joshi" title="Oral-History:Ravindra Joshi">Oral-History:Ravindra Joshi</a></li> <li><a href="/Adel_Razek" title="Adel Razek">Adel Razek</a></li> <li><a href="/RCA_(Radio_Corporation_of_America)" title="RCA (Radio Corporation of America)">RCA (Radio Corporation of America)</a></li> <li><a href="/RCA_Laboratories_at_Princeton,_New_Jersey" title="RCA Laboratories at Princeton, New Jersey">RCA Laboratories at Princeton, New Jersey</a></li> <li><a href="/First-Hand:Re-Establishing_IEEE_Members%27_Right_to_Ethical_Support_in_Employee-Employer_Professional/Ethical_Disputes" title="First-Hand:Re-Establishing IEEE Members' Right to Ethical Support in Employee-Employer Professional/Ethical Disputes">First-Hand:Re-Establishing IEEE Members' Right to Ethical Support in Employee-Employer Professional/Ethical Disputes</a></li> <li><a href="/Oral-History:Wally_Read" title="Oral-History:Wally Read">Oral-History:Wally Read</a></li> <li><a href="/First-Hand:Recollections_of_My_Career" title="First-Hand:Recollections of My Career">First-Hand:Recollections of My Career</a></li> <li><a href="/Wanda_K._Reder" title="Wanda K. Reder">Wanda K. Reder</a></li> <li><a href="/Oral-History:Robert_Rediker" title="Oral-History:Robert Rediker">Oral-History:Robert Rediker</a></li> <li><a href="/Thomas_Boverton_Redwood" title="Thomas Boverton Redwood">Thomas Boverton Redwood</a></li> <li><a href="/Cordell_Reed" title="Cordell Reed">Cordell Reed</a></li> <li><a href="/First-Hand:Reflections_of_a_Production_Engineer" title="First-Hand:Reflections of a Production Engineer">First-Hand:Reflections of a Production Engineer</a></li> <li><a href="/Refrigerator" title="Refrigerator">Refrigerator</a></li> <li><a href="/Oral-History:Bill_Rehm" title="Oral-History:Bill Rehm">Oral-History:Bill Rehm</a></li> <li><a href="/Hermann_W._Reichenstein" title="Hermann W. Reichenstein">Hermann W. Reichenstein</a></li> <li><a href="/First-Hand:Reinventing_the_Wheel:_Collaboration,_Cooperation,_and_Contention_in_Engineering" title="First-Hand:Reinventing the Wheel: Collaboration, Cooperation, and Contention in Engineering">First-Hand:Reinventing the Wheel: Collaboration, Cooperation, and Contention in Engineering</a></li> <li><a href="/Discovering_the_Reservoir" title="Discovering the Reservoir">Discovering the Reservoir</a></li> <li><a href="/Oral-History:Tae-Won_Rhee_and_Duck-Jin_Kim" title="Oral-History:Tae-Won Rhee and Duck-Jin Kim">Oral-History:Tae-Won Rhee and Duck-Jin Kim</a></li> <li><a href="/Archives:Papers_of_E.W._Rice" title="Archives:Papers of E.W. Rice">Archives:Papers of E.W. Rice</a></li> <li><a href="/Neal_A._Richardson" title="Neal A. Richardson">Neal A. Richardson</a></li> <li><a href="/Forrest_Eugene_Ricketts" title="Forrest Eugene Ricketts">Forrest Eugene Ricketts</a></li> <li><a href="/James_N._Riess" title="James N. Riess">James N. Riess</a></li> <li><a href="/Milestones:Rinc%C3%B3n_del_Bonete,_1945" title="Milestones:Rincón del Bonete, 1945">Milestones:Rincón del Bonete, 1945</a></li> <li><a href="/Lawrence_Marshall_Robertson" title="Lawrence Marshall Robertson">Lawrence Marshall Robertson</a></li> <li><a href="/Oral-History:Leon_Robinson" title="Oral-History:Leon Robinson">Oral-History:Leon Robinson</a></li> <li><a href="/George_Dorwart_Rockefeller" title="George Dorwart Rockefeller">George Dorwart Rockefeller</a></li> <li><a href="/Nelson_W._Rogers" title="Nelson W. Rogers">Nelson W. Rogers</a></li> <li><a href="/Oral-History:Roland_Moreau" title="Oral-History:Roland Moreau">Oral-History:Roland Moreau</a></li> <li><a href="/Roller-Cone_Drill_Bit" title="Roller-Cone Drill Bit">Roller-Cone Drill Bit</a></li> <li><a href="/Oral-History:Richard_Rollman" title="Oral-History:Richard Rollman">Oral-History:Richard Rollman</a></li> <li><a href="/Oral-History:Harold_Rosen" title="Oral-History:Harold Rosen">Oral-History:Harold Rosen</a></li> <li><a href="/Leon_T._Rosenberg" title="Leon T. Rosenberg">Leon T. Rosenberg</a></li> <li><a href="/Rotating_Hoists" title="Rotating Hoists">Rotating Hoists</a></li> <li><a href="/Chronology_of_the_early_Russian_petroleum_history" title="Chronology of the early Russian petroleum history">Chronology of the early Russian petroleum history</a></li> <li><a href="/Archives:Papers_of_H.J._Ryan" title="Archives:Papers of H.J. Ryan">Archives:Papers of H.J. Ryan</a></li></ul></div><div class="mw-category-group"><h3>S</h3> <ul><li><a href="/Oral-History:Shoichi_Saba" title="Oral-History:Shoichi Saba">Oral-History:Shoichi Saba</a></li> <li><a href="/Eugene_C._Sakshaug" title="Eugene C. Sakshaug">Eugene C. Sakshaug</a></li> <li><a href="/Oral-History:Fernando_Samaniego-Verduzco" title="Oral-History:Fernando Samaniego-Verduzco">Oral-History:Fernando Samaniego-Verduzco</a></li> <li><a href="/William_H._Sanders" title="William H. Sanders">William H. Sanders</a></li> <li><a href="/Oral-History:Tadashi_Sasaki" title="Oral-History:Tadashi Sasaki">Oral-History:Tadashi Sasaki</a></li> <li><a href="/Tadashi_Sasaki" title="Tadashi Sasaki">Tadashi Sasaki</a></li> <li><a href="/Solar_Power_from_Satellites" title="Solar Power from Satellites">Solar Power from Satellites</a></li> <li><a href="/Oral-History:Robert_Saunders" title="Oral-History:Robert Saunders">Oral-History:Robert Saunders</a></li> <li><a href="/Marion_A._Savage" title="Marion A. Savage">Marion A. Savage</a></li> <li><a href="/Sayanogorsk_Hydro_Generator_Accident" title="Sayanogorsk Hydro Generator Accident">Sayanogorsk Hydro Generator Accident</a></li> <li><a href="/Anna_Scaglione" title="Anna Scaglione">Anna Scaglione</a></li> <li><a href="/Oral-History:Harold_Scherer" title="Oral-History:Harold Scherer">Oral-History:Harold Scherer</a></li> <li><a href="/Clement_S._Schifreen" title="Clement S. Schifreen">Clement S. Schifreen</a></li> <li><a href="/Oral-History:Kurt_Schips" title="Oral-History:Kurt Schips">Oral-History:Kurt Schips</a></li> <li><a href="/Oral-History:Johan_Schleimann-Jensen" title="Oral-History:Johan Schleimann-Jensen">Oral-History:Johan Schleimann-Jensen</a></li> <li><a href="/Fran%C3%A7ois_Conrad_Schlumberger" title="François Conrad Schlumberger">François Conrad Schlumberger</a></li> <li><a href="/Archives:Papers_of_R.F._Schuchardt" title="Archives:Papers of R.F. Schuchardt">Archives:Papers of R.F. Schuchardt</a></li> <li><a href="/Rudolph_Schuchardt" title="Rudolph Schuchardt">Rudolph Schuchardt</a></li> <li><a href="/Edmund_Schweitzer" title="Edmund Schweitzer">Edmund Schweitzer</a></li> <li><a href="/Charles_F._Scott" title="Charles F. Scott">Charles F. Scott</a></li> <li><a href="/Archives:Papers_of_Charles_F._Scott" title="Archives:Papers of Charles F. Scott">Archives:Papers of Charles F. Scott</a></li> <li><a href="/Walter_G._Scott" title="Walter G. Scott">Walter G. Scott</a></li> <li><a href="/Seismic_Technology" title="Seismic Technology">Seismic Technology</a></li> <li><a href="/Semisubmursible_Drilling" title="Semisubmursible Drilling">Semisubmursible Drilling</a></li> <li><a href="/The_Service_Industry_Takes_Hold" title="The Service Industry Takes Hold">The Service Industry Takes Hold</a></li> <li><a href="/Oral-History:Claude_E._Shannon" title="Oral-History:Claude E. Shannon">Oral-History:Claude E. Shannon</a></li> <li><a href="/Oral-History:Ken%27ichi_Shinoda" title="Oral-History:Ken'ichi Shinoda">Oral-History:Ken'ichi Shinoda</a></li> <li><a href="/Yukihiro_Shinohara" title="Yukihiro Shinohara">Yukihiro Shinohara</a></li> <li><a href="/Ship-shape_Production" title="Ship-shape Production">Ship-shape Production</a></li> <li><a href="/Shippingport_Nuclear_Power_Plant" title="Shippingport Nuclear Power Plant">Shippingport Nuclear Power Plant</a></li> <li><a href="/Milestones:Shoshone_Transmission_Line,_1909" title="Milestones:Shoshone Transmission Line, 1909">Milestones:Shoshone Transmission Line, 1909</a></li> <li><a href="/Oral-History:Daniel_Siewiorek" title="Oral-History:Daniel Siewiorek">Oral-History:Daniel Siewiorek</a></li> <li><a href="/Archives:Etched_in_Silicon:_The_1980s" title="Archives:Etched in Silicon: The 1980s">Archives:Etched in Silicon: The 1980s</a></li> <li><a href="/Simple_Electric_Motor" title="Simple Electric Motor">Simple Electric Motor</a></li> <li><a href="/John_W._Simpson" title="John W. Simpson">John W. Simpson</a></li> <li><a href="/Archives:Simulation_of_Oil_Reserves_on_a_Digital_Computer" title="Archives:Simulation of Oil Reserves on a Digital Computer">Archives:Simulation of Oil Reserves on a Digital Computer</a></li> <li><a href="/Wilfred_F._Skeats" title="Wilfred F. Skeats">Wilfred F. Skeats</a></li> <li><a href="/Slips_and_Jars" title="Slips and Jars">Slips and Jars</a></li> <li><a href="/Oral-History:George_E._Smith" title="Oral-History:George E. Smith">Oral-History:George E. Smith</a></li> <li><a href="/Oral-History:Society_of_Petroleum_Engineers_Oral_Histories" title="Oral-History:Society of Petroleum Engineers Oral Histories">Oral-History:Society of Petroleum Engineers Oral Histories</a></li> <li><a href="/First-Hand:Sometimes_Well_Weighers_are_Just_Lucky" title="First-Hand:Sometimes Well Weighers are Just Lucky">First-Hand:Sometimes Well Weighers are Just Lucky</a></li> <li><a href="/Royal_Sorensen" title="Royal Sorensen">Royal Sorensen</a></li> <li><a href="/Oral-History:Jack_Spangler" title="Oral-History:Jack Spangler">Oral-History:Jack Spangler</a></li> <li><a href="/Elmer_A._Sperry" title="Elmer A. Sperry">Elmer A. Sperry</a></li> <li><a href="/Philip_Sporn" title="Philip Sporn">Philip Sporn</a></li> <li><a href="/Frank_J._Sprague" title="Frank J. Sprague">Frank J. Sprague</a></li> <li><a href="/Archives:Papers_of_Frank_Julian_Sprague" title="Archives:Papers of Frank Julian Sprague">Archives:Papers of Frank Julian Sprague</a></li> <li><a href="/Spring_Poles" title="Spring Poles">Spring Poles</a></li> <li><a href="/Archives:Papers_of_William_Stanley" title="Archives:Papers of William Stanley">Archives:Papers of William Stanley</a></li> <li><a href="/William_Stanley" title="William Stanley">William Stanley</a></li> <li><a href="/Milestones:Star_of_Laufenburg_Interconnection,_1958" title="Milestones:Star of Laufenburg Interconnection, 1958">Milestones:Star of Laufenburg Interconnection, 1958</a></li> <li><a href="/Steerable_Drilling" title="Steerable Drilling">Steerable Drilling</a></li> <li><a href="/Oral-History:Karl_Ulrich_Stein" title="Oral-History:Karl Ulrich Stein">Oral-History:Karl Ulrich Stein</a></li> <li><a href="/Archives:Papers_of_L.B._Stillwell" title="Archives:Papers of L.B. Stillwell">Archives:Papers of L.B. Stillwell</a></li> <li><a href="/Straphanger_History:_Lewis_B._Stillwell_and_Alternating_Current" title="Straphanger History: Lewis B. Stillwell and Alternating Current">Straphanger History: Lewis B. Stillwell and Alternating Current</a></li> <li><a href="/Straphanger_History:_Lewis_B._Stillwell%27s_Power_to_Move_People" title="Straphanger History: Lewis B. Stillwell's Power to Move People">Straphanger History: Lewis B. Stillwell's Power to Move People</a></li> <li><a href="/Edmund_C._Stone" title="Edmund C. Stone">Edmund C. Stone</a></li> <li><a href="/Norman_Wilson_Storer" title="Norman Wilson Storer">Norman Wilson Storer</a></li> <li><a href="/Henry_Stott" title="Henry Stott">Henry Stott</a></li> <li><a href="/Archives:Papers_of_Henry_G._Stott" title="Archives:Papers of Henry G. Stott">Archives:Papers of Henry G. Stott</a></li> <li><a href="/Loren_Frank_Stringer" title="Loren Frank Stringer">Loren Frank Stringer</a></li> <li><a href="/Oral-History:Kenneth_Sturley" title="Oral-History:Kenneth Sturley">Oral-History:Kenneth Sturley</a></li> <li><a href="/Subsalt_Drilling" title="Subsalt Drilling">Subsalt Drilling</a></li> <li><a href="/Subsea_Completion" title="Subsea Completion">Subsea Completion</a></li> <li><a href="/Subsea_Wells" title="Subsea Wells">Subsea Wells</a></li> <li><a href="/Robert_L._Suggs" title="Robert L. Suggs">Robert L. Suggs</a></li> <li><a href="/Chauncey_Guy_Suits" title="Chauncey Guy Suits">Chauncey Guy Suits</a></li> <li><a href="/Richard_M._Swanson" title="Richard M. Swanson">Richard M. Swanson</a></li> <li><a href="/Archives:Fighting_for_Lighting_and_Cooking:_Competing_Energy_Systems_in_Sweden,_1880-1960" title="Archives:Fighting for Lighting and Cooking: Competing Energy Systems in Sweden, 1880-1960">Archives:Fighting for Lighting and Cooking: Competing Energy Systems in Sweden, 1880-1960</a></li> <li><a href="/Synthetic_Fuels" title="Synthetic Fuels">Synthetic Fuels</a></li></ul></div><div class="mw-category-group"><h3>T</h3> <ul><li><a href="/Katsuhiko_Takeuchi" title="Katsuhiko Takeuchi">Katsuhiko Takeuchi</a></li> <li><a href="/Abdullah_Tariki" title="Abdullah Tariki">Abdullah Tariki</a></li> <li><a href="/Milestones:Taum_Sauk_Pumped-Storage_Electric_Power_Plant,_1963" title="Milestones:Taum Sauk Pumped-Storage Electric Power Plant, 1963">Milestones:Taum Sauk Pumped-Storage Electric Power Plant, 1963</a></li> <li><a href="/Carson_W._Taylor" title="Carson W. Taylor">Carson W. Taylor</a></li> <li><a href="/Oral-History:Benjamin_R._Teare_Jr." title="Oral-History:Benjamin R. Teare Jr.">Oral-History:Benjamin R. Teare Jr.</a></li> <li><a href="/Telegraphone" title="Telegraphone">Telegraphone</a></li> <li><a href="/Telephony_over_Power_Lines_(Early_History)" title="Telephony over Power Lines (Early History)">Telephony over Power Lines (Early History)</a></li> <li><a href="/Telharmonium" title="Telharmonium">Telharmonium</a></li> <li><a href="/Tension-Leg_Platform" title="Tension-Leg Platform">Tension-Leg Platform</a></li> <li><a href="/Nikola_Tesla" title="Nikola Tesla">Nikola Tesla</a></li> <li><a href="/Milestones:Nikola_Tesla_(1856-1943),_Electrical_Pioneer_(Special_Citation)" title="Milestones:Nikola Tesla (1856-1943), Electrical Pioneer (Special Citation)">Milestones:Nikola Tesla (1856-1943), Electrical Pioneer (Special Citation)</a></li> <li><a href="/Archives:Papers_of_Nikola_Tesla" title="Archives:Papers of Nikola Tesla">Archives:Papers of Nikola Tesla</a></li> <li><a href="/Tesla%27s_Electro-magnetic_motor" title="Tesla's Electro-magnetic motor">Tesla's Electro-magnetic motor</a></li> <li><a href="/Texas_Oil_Boom" title="Texas Oil Boom">Texas Oil Boom</a></li> <li><a href="/First-Hand:The_Evolution_of_Isolated_Phase_Bus_Duct,_1950_to_2000" title="First-Hand:The Evolution of Isolated Phase Bus Duct, 1950 to 2000">First-Hand:The Evolution of Isolated Phase Bus Duct, 1950 to 2000</a></li> <li><a href="/First-Hand:The_Evolution_of_the_ARAMCO_Reservoir_Behavior_Simulator_(ARBS)" title="First-Hand:The Evolution of the ARAMCO Reservoir Behavior Simulator (ARBS)">First-Hand:The Evolution of the ARAMCO Reservoir Behavior Simulator (ARBS)</a></li> <li><a href="/First-Hand:The_First-Ever_Integrated_High_Fidelity_Output_System" title="First-Hand:The First-Ever Integrated High Fidelity Output System">First-Hand:The First-Ever Integrated High Fidelity Output System</a></li> <li><a href="/First-Hand:The_Lights_Go_Off_All_Over_the_Camp" title="First-Hand:The Lights Go Off All Over the Camp">First-Hand:The Lights Go Off All Over the Camp</a></li> <li><a href="/First-Hand:The_Only_Woman_in_the_Room" title="First-Hand:The Only Woman in the Room">First-Hand:The Only Woman in the Room</a></li> <li><a href="/First-Hand:The_Rise_and_Fall_of_Dual_Wells" title="First-Hand:The Rise and Fall of Dual Wells">First-Hand:The Rise and Fall of Dual Wells</a></li> <li><a href="/Thermal_Decay_Time_Tool" title="Thermal Decay Time Tool">Thermal Decay Time Tool</a></li> <li><a href="/Melvin_A._Thomas" title="Melvin A. Thomas">Melvin A. Thomas</a></li> <li><a href="/Elihu_Thomson" title="Elihu Thomson">Elihu Thomson</a></li> <li><a href="/Archives:Papers_of_Elihu_Thomson" title="Archives:Papers of Elihu Thomson">Archives:Papers of Elihu Thomson</a></li> <li><a href="/Thordarson_1_MV_transformer" title="Thordarson 1 MV transformer">Thordarson 1 MV transformer</a></li> <li><a href="/Oral-History:Bertil_Thoren" title="Oral-History:Bertil Thoren">Oral-History:Bertil Thoren</a></li> <li><a href="/Panic_at_Three_Mile_Island" title="Panic at Three Mile Island">Panic at Three Mile Island</a></li> <li><a href="/William_Tinney" title="William Tinney">William Tinney</a></li> <li><a href="/Oral-History:William_Tinney" title="Oral-History:William Tinney">Oral-History:William Tinney</a></li> <li><a href="/Hamid_A._Toliyat" title="Hamid A. Toliyat">Hamid A. Toliyat</a></li> <li><a href="/Archives:Papers_of_Philip_Torchio" title="Archives:Papers of Philip Torchio">Archives:Papers of Philip Torchio</a></li> <li><a href="/Philip_Torchio" title="Philip Torchio">Philip Torchio</a></li> <li><a href="/Torpedoes_(Well_shooting)" title="Torpedoes (Well shooting)">Torpedoes (Well shooting)</a></li> <li><a href="/Torsion_Balance" title="Torsion Balance">Torsion Balance</a></li> <li><a href="/Archives:Papers_of_Calvert_Townley" title="Archives:Papers of Calvert Townley">Archives:Papers of Calvert Townley</a></li> <li><a href="/Trans_Alaska_Oil_Pipeline" title="Trans Alaska Oil Pipeline">Trans Alaska Oil Pipeline</a></li> <li><a href="/Transformers" title="Transformers">Transformers</a></li> <li><a href="/The_Transistor_and_Portable_Electronics" title="The Transistor and Portable Electronics">The Transistor and Portable Electronics</a></li> <li><a href="/First-Hand:Transition_from_Animal_to_Machine_Power_Spurs_Farm_Boy%27s_Electrical_Interest" title="First-Hand:Transition from Animal to Machine Power Spurs Farm Boy's Electrical Interest">First-Hand:Transition from Animal to Machine Power Spurs Farm Boy's Electrical Interest</a></li> <li><a href="/Milestones:First_735_kV_AC_Transmission_System,_1965" title="Milestones:First 735 kV AC Transmission System, 1965">Milestones:First 735 kV AC Transmission System, 1965</a></li> <li><a href="/Oral-History:Arno_Treptow" title="Oral-History:Arno Treptow">Oral-History:Arno Treptow</a></li> <li><a href="/Philip_H._Trickey" title="Philip H. Trickey">Philip H. Trickey</a></li> <li><a href="/Tricone_Roller-Cone_Drill_Bit" title="Tricone Roller-Cone Drill Bit">Tricone Roller-Cone Drill Bit</a></li> <li><a href="/Tubing-conveyed_Perforation" title="Tubing-conveyed Perforation">Tubing-conveyed Perforation</a></li> <li><a href="/Turbodrill" title="Turbodrill">Turbodrill</a></li></ul></div><div class="mw-category-group"><h3>U</h3> <ul><li><a href="/UK_North_Sea" title="UK North Sea">UK North Sea</a></li> <li><a href="/Oral-History:Gottfried_Ungerboeck" title="Oral-History:Gottfried Ungerboeck">Oral-History:Gottfried Ungerboeck</a></li> <li><a href="/First-Hand:Unions_and_Utilities_in_New_York" title="First-Hand:Unions and Utilities in New York">First-Hand:Unions and Utilities in New York</a></li></ul></div><div class="mw-category-group"><h3>V</h3> <ul><li><a href="/Oral-History:Mary_Van_Domelen" title="Oral-History:Mary Van Domelen">Oral-History:Mary Van Domelen</a></li> <li><a href="/Oral-History:Ralph_Veatch" title="Oral-History:Ralph Veatch">Oral-History:Ralph Veatch</a></li> <li><a href="/Cyril_G._Veinott" title="Cyril G. Veinott">Cyril G. Veinott</a></li> <li><a href="/Victor_Talking_Machine_Company" title="Victor Talking Machine Company">Victor Talking Machine Company</a></li> <li><a href="/Oral-History:Oswald_Garrison_Villard" title="Oral-History:Oswald Garrison Villard">Oral-History:Oswald Garrison Villard</a></li> <li><a href="/Patrizio_Vinciarelli" title="Patrizio Vinciarelli">Patrizio Vinciarelli</a></li> <li><a href="/Vijay_Vittal" title="Vijay Vittal">Vijay Vittal</a></li> <li><a href="/Fred_J._Vogel" title="Fred J. Vogel">Fred J. Vogel</a></li> <li><a href="/Oral-History:Fred_Vogel" title="Oral-History:Fred Vogel">Oral-History:Fred Vogel</a></li> <li><a href="/Alessandro_Volta" title="Alessandro Volta">Alessandro Volta</a></li> <li><a href="/Milestones:Volta%27s_Electrical_Battery_Invention,_1799" title="Milestones:Volta's Electrical Battery Invention, 1799">Milestones:Volta's Electrical Battery Invention, 1799</a></li> <li><a href="/Voltaic_Pile" title="Voltaic Pile">Voltaic Pile</a></li> <li><a href="/Milestones:Vucje_Hydroelectric_Plant,_1903" title="Milestones:Vucje Hydroelectric Plant, 1903">Milestones:Vucje Hydroelectric Plant, 1903</a></li> <li><a href="/Milestones:Vulcan_Street_Plant,_1882" title="Milestones:Vulcan Street Plant, 1882">Milestones:Vulcan Street Plant, 1882</a></li></ul></div><div class="mw-category-group"><h3>W</h3> <ul><li><a href="/Arthur_Wade" title="Arthur Wade">Arthur Wade</a></li> <li><a href="/Charles_F._Wagner" title="Charles F. Wagner">Charles F. Wagner</a></li> <li><a href="/Oral-History:Charles_Wagner" title="Oral-History:Charles Wagner">Oral-History:Charles Wagner</a></li> <li><a href="/Walking_Beams" title="Walking Beams">Walking Beams</a></li> <li><a href="/Oral-History:J._T._Wallmark" title="Oral-History:J. T. Wallmark">Oral-History:J. T. Wallmark</a></li> <li><a href="/Zhifang_Wang" title="Zhifang Wang">Zhifang Wang</a></li> <li><a href="/Henry_E._Warren" title="Henry E. Warren">Henry E. Warren</a></li> <li><a href="/Oral-History:Ernst_Weber_(1988)" title="Oral-History:Ernst Weber (1988)">Oral-History:Ernst Weber (1988)</a></li> <li><a href="/Oral-History:Roger_Webster" title="Oral-History:Roger Webster">Oral-History:Roger Webster</a></li> <li><a href="/Oral-History:Bruno_Weinschel" title="Oral-History:Bruno Weinschel">Oral-History:Bruno Weinschel</a></li> <li><a href="/Well_Logging" title="Well Logging">Well Logging</a></li> <li><a href="/George_Westinghouse" title="George Westinghouse">George Westinghouse</a></li> <li><a href="/Archives:Papers_of_George_Westinghouse" title="Archives:Papers of George Westinghouse">Archives:Papers of George Westinghouse</a></li> <li><a href="/First-Hand:Westinghouse_Pioneers_Development_of_Sulfur_Hexafluoride_(SF6)_Circuit_Breakers" title="First-Hand:Westinghouse Pioneers Development of Sulfur Hexafluoride (SF6) Circuit Breakers">First-Hand:Westinghouse Pioneers Development of Sulfur Hexafluoride (SF6) Circuit Breakers</a></li> <li><a href="/Oral-History:Harold_A._Wheeler_(1985)" title="Oral-History:Harold A. Wheeler (1985)">Oral-History:Harold A. Wheeler (1985)</a></li> <li><a href="/Oral-History:Stanley_A._White" title="Oral-History:Stanley A. White">Oral-History:Stanley A. White</a></li> <li><a href="/John_Whitehead" title="John Whitehead">John Whitehead</a></li> <li><a href="/Eugene_Chapin_Whitney" title="Eugene Chapin Whitney">Eugene Chapin Whitney</a></li> <li><a href="/Oral-History:Eugene_Whitney" title="Oral-History:Eugene Whitney">Oral-History:Eugene Whitney</a></li> <li><a href="/Howard_A._Wilcox" title="Howard A. Wilcox">Howard A. Wilcox</a></li> <li><a href="/Oral-History:G._Paul_Willhite" title="Oral-History:G. Paul Willhite">Oral-History:G. Paul Willhite</a></li> <li><a href="/Williamson_Amplifier" title="Williamson Amplifier">Williamson Amplifier</a></li> <li><a href="/Archives:Winter_1984_Power_Meeting,_Awards_Luncheon_at_Hilton" title="Archives:Winter 1984 Power Meeting, Awards Luncheon at Hilton">Archives:Winter 1984 Power Meeting, Awards Luncheon at Hilton</a></li> <li><a href="/Archives:Winter_1984_Power_Meeting,_tape_1" title="Archives:Winter 1984 Power Meeting, tape 1">Archives:Winter 1984 Power Meeting, tape 1</a></li> <li><a href="/Archives:Winter_1984_Power_Meeting,_tape_2" title="Archives:Winter 1984 Power Meeting, tape 2">Archives:Winter 1984 Power Meeting, tape 2</a></li> <li><a href="/Archives:Winter_1984_Power_Meeting,_tape_3" title="Archives:Winter 1984 Power Meeting, tape 3">Archives:Winter 1984 Power Meeting, tape 3</a></li> <li><a href="/Oral-History:Irving_Wolff" title="Oral-History:Irving Wolff">Oral-History:Irving Wolff</a></li> <li><a href="/Women_of_Westinghouse" title="Women of Westinghouse">Women of Westinghouse</a></li> <li><a href="/Harry_R._Woodrow" title="Harry R. Woodrow">Harry R. Woodrow</a></li> <li><a href="/Granville_T._Woods" title="Granville T. Woods">Granville T. Woods</a></li> <li><a href="/World%27s_First_Oil_Well" title="World's First Oil Well">World's First Oil Well</a></li> <li><a href="/Oral-History:Victor_Wouk" title="Oral-History:Victor Wouk">Oral-History:Victor Wouk</a></li></ul></div><div class="mw-category-group"><h3>X</h3> <ul><li><a href="/Longya_Xu" title="Longya Xu">Longya Xu</a></li></ul></div><div class="mw-category-group"><h3>Y</h3> <ul><li><a href="/Yamaha_Company" title="Yamaha Company">Yamaha Company</a></li> <li><a href="/Sakae_Yamamura" title="Sakae Yamamura">Sakae Yamamura</a></li> <li><a href="/Oral-History:Susumo_Yoshida" title="Oral-History:Susumo Yoshida">Oral-History:Susumo Yoshida</a></li> <li><a href="/Akira_Yoshino" title="Akira Yoshino">Akira Yoshino</a></li></ul></div></div></div> </div><div id="mw-category-media"> <h2>Media in category "Energy"</h2> <p>The following 144 files are in this category, out of 144 total. </p><ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:15px auto;"><a href="/File:1111-pearl_street_station_exterior.jpg" class="image"><img alt="" src="/w/images/thumb/3/34/1111-pearl_street_station_exterior.jpg/78px-1111-pearl_street_station_exterior.jpg" decoding="async" width="78" height="120" srcset="/w/images/thumb/3/34/1111-pearl_street_station_exterior.jpg/118px-1111-pearl_street_station_exterior.jpg 1.5x, /w/images/thumb/3/34/1111-pearl_street_station_exterior.jpg/157px-1111-pearl_street_station_exterior.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:1111-pearl_street_station_exterior.jpg" class="galleryfilename galleryfilename-truncate" title="File:1111-pearl street station exterior.jpg">1111-pearl street station exterior.jpg</a> 879 × 1,344; 170 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:25.5px auto;"><a href="/File:1225-commonwealth_edison_building.jpg" class="image"><img alt="" src="/w/images/thumb/6/6d/1225-commonwealth_edison_building.jpg/120px-1225-commonwealth_edison_building.jpg" decoding="async" width="120" height="99" srcset="/w/images/thumb/6/6d/1225-commonwealth_edison_building.jpg/180px-1225-commonwealth_edison_building.jpg 1.5x, /w/images/thumb/6/6d/1225-commonwealth_edison_building.jpg/240px-1225-commonwealth_edison_building.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:1225-commonwealth_edison_building.jpg" class="galleryfilename galleryfilename-truncate" title="File:1225-commonwealth edison building.jpg">1225-commonwealth edison building.jpg</a> 1,810 × 1,500; 679 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:35.5px auto;"><a href="/File:157-idaho_rocky_mountain_ranch.jpg" class="image"><img alt="" src="/w/images/thumb/e/ed/157-idaho_rocky_mountain_ranch.jpg/120px-157-idaho_rocky_mountain_ranch.jpg" decoding="async" width="120" height="79" srcset="/w/images/thumb/e/ed/157-idaho_rocky_mountain_ranch.jpg/180px-157-idaho_rocky_mountain_ranch.jpg 1.5x, /w/images/thumb/e/ed/157-idaho_rocky_mountain_ranch.jpg/240px-157-idaho_rocky_mountain_ranch.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:157-idaho_rocky_mountain_ranch.jpg" class="galleryfilename galleryfilename-truncate" title="File:157-idaho rocky mountain ranch.jpg">157-idaho rocky mountain ranch.jpg</a> 1,500 × 986; 463 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:35px auto;"><a href="/File:19thc_Experimental_Devices_0128.jpg" class="image"><img alt="" src="/w/images/thumb/7/77/19thc_Experimental_Devices_0128.jpg/120px-19thc_Experimental_Devices_0128.jpg" decoding="async" width="120" height="80" srcset="/w/images/thumb/7/77/19thc_Experimental_Devices_0128.jpg/180px-19thc_Experimental_Devices_0128.jpg 1.5x, /w/images/thumb/7/77/19thc_Experimental_Devices_0128.jpg/240px-19thc_Experimental_Devices_0128.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:19thc_Experimental_Devices_0128.jpg" class="galleryfilename galleryfilename-truncate" title="File:19thc Experimental Devices 0128.jpg">19thc Experimental Devices 0128.jpg</a> 640 × 429; 81 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:30px auto;"><a href="/File:2163-generator_at_columbian_expo.jpg" class="image"><img alt="" src="/w/images/thumb/c/cc/2163-generator_at_columbian_expo.jpg/120px-2163-generator_at_columbian_expo.jpg" decoding="async" width="120" height="90" srcset="/w/images/thumb/c/cc/2163-generator_at_columbian_expo.jpg/180px-2163-generator_at_columbian_expo.jpg 1.5x, /w/images/thumb/c/cc/2163-generator_at_columbian_expo.jpg/240px-2163-generator_at_columbian_expo.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:2163-generator_at_columbian_expo.jpg" class="galleryfilename galleryfilename-truncate" title="File:2163-generator at columbian expo.jpg">2163-generator at columbian expo.jpg</a> 1,128 × 845; 117 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:34px auto;"><a href="/File:253-indian_point_control_room.jpg" class="image"><img alt="" src="/w/images/thumb/5/55/253-indian_point_control_room.jpg/120px-253-indian_point_control_room.jpg" decoding="async" width="120" height="82" srcset="/w/images/thumb/5/55/253-indian_point_control_room.jpg/180px-253-indian_point_control_room.jpg 1.5x, /w/images/thumb/5/55/253-indian_point_control_room.jpg/240px-253-indian_point_control_room.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:253-indian_point_control_room.jpg" class="galleryfilename galleryfilename-truncate" title="File:253-indian point control room.jpg">253-indian point control room.jpg</a> 1,425 × 978; 336 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:27px auto;"><a href="/File:2983-bombe.jpg" class="image"><img alt="" src="/w/images/thumb/d/d8/2983-bombe.jpg/120px-2983-bombe.jpg" decoding="async" width="120" height="96" srcset="/w/images/thumb/d/d8/2983-bombe.jpg/180px-2983-bombe.jpg 1.5x, /w/images/thumb/d/d8/2983-bombe.jpg/240px-2983-bombe.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:2983-bombe.jpg" class="galleryfilename galleryfilename-truncate" title="File:2983-bombe.jpg">2983-bombe.jpg</a> 1,228 × 981; 119 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:29.5px auto;"><a href="/File:4601-cardwell_exhibition_at_grand_central_palace.jpg" class="image"><img alt="" src="/w/images/thumb/f/fe/4601-cardwell_exhibition_at_grand_central_palace.jpg/120px-4601-cardwell_exhibition_at_grand_central_palace.jpg" decoding="async" width="120" height="91" srcset="/w/images/thumb/f/fe/4601-cardwell_exhibition_at_grand_central_palace.jpg/180px-4601-cardwell_exhibition_at_grand_central_palace.jpg 1.5x, /w/images/thumb/f/fe/4601-cardwell_exhibition_at_grand_central_palace.jpg/240px-4601-cardwell_exhibition_at_grand_central_palace.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:4601-cardwell_exhibition_at_grand_central_palace.jpg" class="galleryfilename galleryfilename-truncate" title="File:4601-cardwell exhibition at grand central palace.jpg">4601-cardwell exhibition at grand central palace.jpg</a> 1,324 × 1,000; 245 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:21.5px auto;"><a href="/File:Alexanderson_Alternator_0312.jpg" class="image"><img alt="" src="/w/images/thumb/2/2a/Alexanderson_Alternator_0312.jpg/120px-Alexanderson_Alternator_0312.jpg" decoding="async" width="120" height="107" srcset="/w/images/thumb/2/2a/Alexanderson_Alternator_0312.jpg/180px-Alexanderson_Alternator_0312.jpg 1.5x, /w/images/thumb/2/2a/Alexanderson_Alternator_0312.jpg/240px-Alexanderson_Alternator_0312.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:Alexanderson_Alternator_0312.jpg" class="galleryfilename galleryfilename-truncate" title="File:Alexanderson Alternator 0312.jpg">Alexanderson Alternator 0312.jpg</a> 1,679 × 1,500; 409 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:25.5px auto;"><a href="/File:Appleton_WI_Central_Station_Exterior_1282.jpg" class="image"><img alt="" src="/w/images/thumb/7/7c/Appleton_WI_Central_Station_Exterior_1282.jpg/120px-Appleton_WI_Central_Station_Exterior_1282.jpg" decoding="async" width="120" height="99" srcset="/w/images/thumb/7/7c/Appleton_WI_Central_Station_Exterior_1282.jpg/180px-Appleton_WI_Central_Station_Exterior_1282.jpg 1.5x, /w/images/thumb/7/7c/Appleton_WI_Central_Station_Exterior_1282.jpg/240px-Appleton_WI_Central_Station_Exterior_1282.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:Appleton_WI_Central_Station_Exterior_1282.jpg" class="galleryfilename galleryfilename-truncate" title="File:Appleton WI Central Station Exterior 1282.jpg">Appleton WI Central Station Exterior 1282.jpg</a> 582 × 480; 40 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:25px auto;"><a href="/File:Appleton_WI_Central_Station_Exterior_1284.jpg" class="image"><img alt="" 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srcset="/w/images/thumb/a/aa/Shallenberger_wattmeter_1106.jpg/111px-Shallenberger_wattmeter_1106.jpg 1.5x, /w/images/thumb/a/aa/Shallenberger_wattmeter_1106.jpg/148px-Shallenberger_wattmeter_1106.jpg 2x" /></a></div></div> <div class="gallerytext"> <a href="/File:Shallenberger_wattmeter_1106.jpg" class="galleryfilename galleryfilename-truncate" title="File:Shallenberger wattmeter 1106.jpg">Shallenberger wattmeter 1106.jpg</a> 394 × 640; 24 KB<br /> </div> </div></li> <li class="gallerybox" style="width: 155px"><div style="width: 155px"> <div class="thumb" style="width: 150px;"><div style="margin:27.5px auto;"><a href="/File:St_Paul_Central_Station_1318.jpg" class="image"><img alt="" src="/w/images/thumb/b/b3/St_Paul_Central_Station_1318.jpg/120px-St_Paul_Central_Station_1318.jpg" decoding="async" width="120" height="95" srcset="/w/images/thumb/b/b3/St_Paul_Central_Station_1318.jpg/180px-St_Paul_Central_Station_1318.jpg 1.5x, 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