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href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=B">B</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=C">C</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=D">D</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=E">E</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=F">F</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=G">G</a> <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&from=H">H</a> <a 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<p>The following 192 pages are in this category, out of approximately 642 total. <a href="/wiki/Wikipedia:FAQ/Categorization#Why_might_a_category_list_not_be_up_to_date?" title="Wikipedia:FAQ/Categorization">This list may not reflect recent changes</a>. </p>(<a href="/w/index.php?title=Category:Wikipedia_level-4_vital_articles_in_Technology&subcatfrom=Q&filefrom=Q&pageuntil=Q#mw-pages" title="Category:Wikipedia level-4 vital articles in Technology">previous page</a>) (next page)<div lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-category mw-category-columns"><div class="mw-category-group"><h3>Q</h3> <ul><li><a href="/wiki/Talk:Qanat" title="Talk:Qanat">Talk:Qanat</a></li> <li><a href="/wiki/Talk:Quarry" title="Talk:Quarry">Talk:Quarry</a></li> <li><a href="/wiki/Talk:Quilting" title="Talk:Quilting">Talk:Quilting</a></li></ul></div><div class="mw-category-group"><h3>R</h3> <ul><li><a href="/wiki/Talk:Radio_broadcasting" title="Talk:Radio broadcasting">Talk:Radio broadcasting</a></li> <li><a href="/wiki/Talk:Radio_telescope" title="Talk:Radio telescope">Talk:Radio telescope</a></li> <li><a href="/wiki/Talk:Radiography" title="Talk:Radiography">Talk:Radiography</a></li> <li><a href="/wiki/Talk:Rail_transport" title="Talk:Rail transport">Talk:Rail transport</a></li> <li><a href="/wiki/Talk:Railway_track" title="Talk:Railway track">Talk:Railway track</a></li> <li><a href="/wiki/Talk:Rake_(tool)" title="Talk:Rake (tool)">Talk:Rake (tool)</a></li> <li><a href="/wiki/Talk:Random-access_memory" title="Talk:Random-access memory">Talk:Random-access memory</a></li> <li><a href="/wiki/Talk:Rapid_transit" title="Talk:Rapid transit">Talk:Rapid transit</a></li> <li><a href="/wiki/Talk:Rapier" title="Talk:Rapier">Talk:Rapier</a></li> <li><a href="/wiki/Talk:Read-only_memory" title="Talk:Read-only memory">Talk:Read-only memory</a></li> <li><a href="/wiki/Talk:Recycling" title="Talk:Recycling">Talk:Recycling</a></li> <li><a href="/wiki/Talk:Refrigerator" title="Talk:Refrigerator">Talk:Refrigerator</a></li> <li><a href="/wiki/Talk:Relay" title="Talk:Relay">Talk:Relay</a></li> <li><a href="/wiki/Talk:Remote_control" title="Talk:Remote control">Talk:Remote control</a></li> <li><a href="/wiki/Talk:Reservoir" title="Talk:Reservoir">Talk:Reservoir</a></li> <li><a href="/wiki/Talk:Resistor" title="Talk:Resistor">Talk:Resistor</a></li> <li><a href="/wiki/Talk:Rickshaw" title="Talk:Rickshaw">Talk:Rickshaw</a></li> <li><a href="/wiki/Talk:Rifle" title="Talk:Rifle">Talk:Rifle</a></li> <li><a href="/wiki/Talk:Riverboat" title="Talk:Riverboat">Talk:Riverboat</a></li> <li><a href="/wiki/Talk:Rivet" title="Talk:Rivet">Talk:Rivet</a></li> <li><a href="/wiki/Talk:Road_transport" title="Talk:Road transport">Talk:Road transport</a></li> <li><a href="/wiki/Talk:Robot" title="Talk:Robot">Talk:Robot</a></li> <li><a href="/wiki/Talk:Rocket_engine" title="Talk:Rocket engine">Talk:Rocket engine</a></li> <li><a href="/wiki/Talk:Rolling_(metalworking)" title="Talk:Rolling (metalworking)">Talk:Rolling (metalworking)</a></li> <li><a href="/wiki/Talk:Roof" title="Talk:Roof">Talk:Roof</a></li> <li><a href="/wiki/Talk:Room" title="Talk:Room">Talk:Room</a></li> <li><a href="/wiki/Talk:Rope" title="Talk:Rope">Talk:Rope</a></li> <li><a href="/wiki/Talk:Roscosmos" title="Talk:Roscosmos">Talk:Roscosmos</a></li> <li><a href="/wiki/Talk:Router_(computing)" title="Talk:Router (computing)">Talk:Router (computing)</a></li> <li><a href="/wiki/Talk:Ruler" title="Talk:Ruler">Talk:Ruler</a></li></ul></div><div class="mw-category-group"><h3>S</h3> <ul><li><a href="/wiki/Talk:Saddle" title="Talk:Saddle">Talk:Saddle</a></li> <li><a href="/wiki/Talk:Sail" title="Talk:Sail">Talk:Sail</a></li> <li><a href="/wiki/Talk:Sailing" title="Talk:Sailing">Talk:Sailing</a></li> <li><a href="/wiki/Talk:Sailing_ship" title="Talk:Sailing ship">Talk:Sailing ship</a></li> <li><a href="/wiki/Talk:Sanitary_sewer" title="Talk:Sanitary sewer">Talk:Sanitary sewer</a></li> <li><a href="/wiki/Talk:Satellite_navigation" title="Talk:Satellite navigation">Talk:Satellite navigation</a></li> <li><a href="/wiki/Talk:Satellite_television" title="Talk:Satellite television">Talk:Satellite television</a></li> <li><a href="/wiki/Talk:Saturn_V" title="Talk:Saturn V">Talk:Saturn V</a></li> <li><a href="/wiki/Talk:Sauna" title="Talk:Sauna">Talk:Sauna</a></li> <li><a href="/wiki/Talk:Saw" title="Talk:Saw">Talk:Saw</a></li> <li><a href="/wiki/Talk:Scaffolding" title="Talk:Scaffolding">Talk:Scaffolding</a></li> <li><a href="/wiki/Talk:Scissors" title="Talk:Scissors">Talk:Scissors</a></li> <li><a href="/wiki/Talk:Screw_mechanism" title="Talk:Screw mechanism">Talk:Screw mechanism</a></li> <li><a href="/wiki/Talk:Search_engine" title="Talk:Search engine">Talk:Search engine</a></li> <li><a href="/wiki/Talk:Selective_breeding" title="Talk:Selective breeding">Talk:Selective breeding</a></li> <li><a href="/wiki/Talk:Sensor" title="Talk:Sensor">Talk:Sensor</a></li> <li><a href="/wiki/Talk:Sewage_treatment" title="Talk:Sewage treatment">Talk:Sewage treatment</a></li> <li><a href="/wiki/Talk:Sewing" title="Talk:Sewing">Talk:Sewing</a></li> <li><a href="/wiki/Talk:Sewing_machine" title="Talk:Sewing machine">Talk:Sewing machine</a></li> <li><a href="/wiki/Talk:Sextant" title="Talk:Sextant">Talk:Sextant</a></li> <li><a href="/wiki/Talk:Shield" title="Talk:Shield">Talk:Shield</a></li> <li><a href="/wiki/Talk:Shinkansen" title="Talk:Shinkansen">Talk:Shinkansen</a></li> <li><a href="/wiki/Talk:Ship_of_the_line" title="Talk:Ship of the line">Talk:Ship of the line</a></li> <li><a href="/wiki/Talk:Shipbuilding" title="Talk:Shipbuilding">Talk:Shipbuilding</a></li> <li><a href="/wiki/Talk:Shotgun" title="Talk:Shotgun">Talk:Shotgun</a></li> <li><a href="/wiki/Talk:Shovel" title="Talk:Shovel">Talk:Shovel</a></li> <li><a href="/wiki/Talk:Sickle" title="Talk:Sickle">Talk:Sickle</a></li> <li><a href="/wiki/Talk:Signal_processing" title="Talk:Signal processing">Talk:Signal processing</a></li> <li><a href="/wiki/Talk:Signal-to-noise_ratio" title="Talk:Signal-to-noise ratio">Talk:Signal-to-noise ratio</a></li> <li><a href="/wiki/Talk:Silk" title="Talk:Silk">Talk:Silk</a></li> <li><a href="/wiki/Talk:Silo" title="Talk:Silo">Talk:Silo</a></li> <li><a href="/wiki/Talk:Sink" title="Talk:Sink">Talk:Sink</a></li> <li><a href="/wiki/Talk:Siphon" title="Talk:Siphon">Talk:Siphon</a></li> <li><a href="/wiki/Talk:Skyscraper" title="Talk:Skyscraper">Talk:Skyscraper</a></li> <li><a href="/wiki/Talk:Sling_(weapon)" title="Talk:Sling (weapon)">Talk:Sling (weapon)</a></li> <li><a href="/wiki/Talk:Smartphone" title="Talk:Smartphone">Talk:Smartphone</a></li> <li><a href="/wiki/Talk:Smelting" title="Talk:Smelting">Talk:Smelting</a></li> <li><a href="/wiki/Talk:Soap" title="Talk:Soap">Talk:Soap</a></li> <li><a href="/wiki/Talk:Social_media" title="Talk:Social media">Talk:Social media</a></li> <li><a href="/wiki/Talk:Software" title="Talk:Software">Talk:Software</a></li> <li><a href="/wiki/Talk:Software_engineering" title="Talk:Software engineering">Talk:Software engineering</a></li> <li><a href="/wiki/Talk:Solar_cell" title="Talk:Solar cell">Talk:Solar cell</a></li> <li><a href="/wiki/Talk:Solar_power" title="Talk:Solar power">Talk:Solar power</a></li> <li><a href="/wiki/Talk:Soldering" title="Talk:Soldering">Talk:Soldering</a></li> <li><a href="/wiki/Talk:Sonar" title="Talk:Sonar">Talk:Sonar</a></li> <li><a href="/wiki/Talk:Sound_recording_and_reproduction" title="Talk:Sound recording and reproduction">Talk:Sound recording and reproduction</a></li> <li><a href="/wiki/Talk:Soviet_space_program" title="Talk:Soviet space program">Talk:Soviet space program</a></li> <li><a href="/wiki/Talk:Soyuz_(spacecraft)" title="Talk:Soyuz (spacecraft)">Talk:Soyuz (spacecraft)</a></li> <li><a href="/wiki/Talk:Space_Shuttle" title="Talk:Space Shuttle">Talk:Space Shuttle</a></li> <li><a href="/wiki/Talk:Spacecraft" title="Talk:Spacecraft">Talk:Spacecraft</a></li> <li><a href="/wiki/Talk:Spear" title="Talk:Spear">Talk:Spear</a></li> <li><a href="/wiki/Talk:Spectrometer" title="Talk:Spectrometer">Talk:Spectrometer</a></li> <li><a href="/wiki/Talk:Speech_synthesis" title="Talk:Speech synthesis">Talk:Speech synthesis</a></li> <li><a href="/wiki/Talk:Spreadsheet" title="Talk:Spreadsheet">Talk:Spreadsheet</a></li> <li><a href="/wiki/Talk:Spring_(device)" title="Talk:Spring (device)">Talk:Spring (device)</a></li> <li><a href="/wiki/Talk:Sputnik_1" title="Talk:Sputnik 1">Talk:Sputnik 1</a></li> <li><a href="/wiki/Talk:Stable" title="Talk:Stable">Talk:Stable</a></li> <li><a href="/wiki/Talk:Stairs" title="Talk:Stairs">Talk:Stairs</a></li> <li><a href="/wiki/Talk:Standardization" title="Talk:Standardization">Talk:Standardization</a></li> <li><a href="/wiki/Talk:Stealth_technology" title="Talk:Stealth technology">Talk:Stealth technology</a></li> <li><a href="/wiki/Talk:Steam_locomotive" title="Talk:Steam locomotive">Talk:Steam locomotive</a></li> <li><a href="/wiki/Talk:Steam_turbine" title="Talk:Steam turbine">Talk:Steam turbine</a></li> <li><a href="/wiki/Talk:Steamboat" title="Talk:Steamboat">Talk:Steamboat</a></li> <li><a href="/wiki/Talk:Steelmaking" title="Talk:Steelmaking">Talk:Steelmaking</a></li> <li><a href="/wiki/Talk:Stethoscope" title="Talk:Stethoscope">Talk:Stethoscope</a></li> <li><a href="/wiki/Talk:Stove" title="Talk:Stove">Talk:Stove</a></li> <li><a href="/wiki/Talk:Structured_programming" title="Talk:Structured programming">Talk:Structured programming</a></li> <li><a href="/wiki/Talk:Submarine" title="Talk:Submarine">Talk:Submarine</a></li> <li><a href="/wiki/Talk:Subsistence_agriculture" title="Talk:Subsistence agriculture">Talk:Subsistence agriculture</a></li> <li><a href="/wiki/Talk:Sundial" title="Talk:Sundial">Talk:Sundial</a></li> <li><a href="/wiki/Talk:Supercomputer" title="Talk:Supercomputer">Talk:Supercomputer</a></li> <li><a href="/wiki/Talk:Sustainable_agriculture" title="Talk:Sustainable agriculture">Talk:Sustainable agriculture</a></li> <li><a href="/wiki/Talk:Switch" title="Talk:Switch">Talk:Switch</a></li> <li><a href="/wiki/Talk:Sword" title="Talk:Sword">Talk:Sword</a></li> <li><a href="/wiki/Talk:Syringe" title="Talk:Syringe">Talk:Syringe</a></li> <li><a href="/wiki/Talk:System" title="Talk:System">Talk:System</a></li></ul></div><div class="mw-category-group"><h3>T</h3> <ul><li><a href="/wiki/Talk:Tank" title="Talk:Tank">Talk:Tank</a></li> <li><a href="/wiki/Talk:Tanker_(ship)" title="Talk:Tanker (ship)">Talk:Tanker (ship)</a></li> <li><a href="/wiki/Talk:Tapestry" title="Talk:Tapestry">Talk:Tapestry</a></li> <li><a href="/wiki/Talk:Taxi" title="Talk:Taxi">Talk:Taxi</a></li> <li><a href="/wiki/Talk:Technical_drawing" title="Talk:Technical drawing">Talk:Technical drawing</a></li> <li><a href="/wiki/Talk:Telegraphy" title="Talk:Telegraphy">Talk:Telegraphy</a></li> <li><a href="/wiki/Talk:Tent" title="Talk:Tent">Talk:Tent</a></li> <li><a href="/wiki/Talk:Text_messaging" title="Talk:Text messaging">Talk:Text messaging</a></li> <li><a href="/wiki/Talk:Theodolite" title="Talk:Theodolite">Talk:Theodolite</a></li> <li><a href="/wiki/Talk:Thermometer" title="Talk:Thermometer">Talk:Thermometer</a></li> <li><a href="/wiki/Talk:Thermonuclear_weapon" title="Talk:Thermonuclear weapon">Talk:Thermonuclear weapon</a></li> <li><a href="/wiki/Talk:Thread_(yarn)" title="Talk:Thread (yarn)">Talk:Thread (yarn)</a></li> <li><a href="/wiki/Talk:Three_Gorges_Dam" title="Talk:Three Gorges Dam">Talk:Three Gorges Dam</a></li> <li><a href="/wiki/Talk:Tillage" title="Talk:Tillage">Talk:Tillage</a></li> <li><a href="/wiki/Talk:Time_zone" title="Talk:Time zone">Talk:Time zone</a></li> <li><a href="/wiki/Talk:Tire" title="Talk:Tire">Talk:Tire</a></li> <li><a href="/wiki/Talk:Toilet" title="Talk:Toilet">Talk:Toilet</a></li> <li><a href="/wiki/Talk:Torpedo" title="Talk:Torpedo">Talk:Torpedo</a></li> <li><a href="/wiki/Talk:Touchscreen" title="Talk:Touchscreen">Talk:Touchscreen</a></li> <li><a href="/wiki/Talk:Tower" title="Talk:Tower">Talk:Tower</a></li> <li><a href="/wiki/Talk:Tower_block" title="Talk:Tower block">Talk:Tower block</a></li> <li><a href="/wiki/Talk:Tower_Bridge" title="Talk:Tower Bridge">Talk:Tower Bridge</a></li> <li><a href="/wiki/Talk:Tractor" title="Talk:Tractor">Talk:Tractor</a></li> <li><a href="/wiki/Talk:Traffic_collision" title="Talk:Traffic collision">Talk:Traffic collision</a></li> <li><a href="/wiki/Talk:Trail" title="Talk:Trail">Talk:Trail</a></li> <li><a href="/wiki/Talk:Train_station" title="Talk:Train station">Talk:Train station</a></li> <li><a href="/wiki/Talk:Tram" title="Talk:Tram">Talk:Tram</a></li> <li><a href="/wiki/Talk:Trans-Siberian_Railway" title="Talk:Trans-Siberian Railway">Talk:Trans-Siberian Railway</a></li> <li><a href="/wiki/Talk:Transformer" title="Talk:Transformer">Talk:Transformer</a></li> <li><a href="/wiki/Talk:Transistor" title="Talk:Transistor">Talk:Transistor</a></li> <li><a href="/wiki/Talk:Travel" title="Talk:Travel">Talk:Travel</a></li> <li><a href="/wiki/Talk:Truck" title="Talk:Truck">Talk:Truck</a></li> <li><a href="/wiki/Talk:Tunnel" title="Talk:Tunnel">Talk:Tunnel</a></li> <li><a href="/wiki/Talk:Turbine" title="Talk:Turbine">Talk:Turbine</a></li> <li><a href="/wiki/Talk:Typewriter" title="Talk:Typewriter">Talk:Typewriter</a></li></ul></div><div class="mw-category-group"><h3>U</h3> <ul><li><a href="/wiki/Talk:Unix" title="Talk:Unix">Talk:Unix</a></li> <li><a href="/wiki/Talk:Unmanned_aerial_vehicle" title="Talk:Unmanned aerial vehicle">Talk:Unmanned aerial vehicle</a></li> <li><a href="/wiki/Talk:Urban_agriculture" title="Talk:Urban agriculture">Talk:Urban agriculture</a></li> <li><a href="/wiki/Talk:User_interface" title="Talk:User interface">Talk:User interface</a></li></ul></div><div class="mw-category-group"><h3>V</h3> <ul><li><a href="/wiki/Talk:Vacuum_cleaner" title="Talk:Vacuum cleaner">Talk:Vacuum cleaner</a></li> <li><a href="/wiki/Talk:Vacuum_tube" title="Talk:Vacuum tube">Talk:Vacuum tube</a></li> <li><a href="/wiki/Talk:Valve" title="Talk:Valve">Talk:Valve</a></li> <li><a href="/wiki/Talk:Van" title="Talk:Van">Talk:Van</a></li> <li><a href="/wiki/Talk:Vehicle" title="Talk:Vehicle">Talk:Vehicle</a></li> <li><a href="/wiki/Talk:Video" title="Talk:Video">Talk:Video</a></li> <li><a href="/wiki/Talk:Video_camera" title="Talk:Video camera">Talk:Video camera</a></li> <li><a href="/wiki/Talk:Villa" title="Talk:Villa">Talk:Villa</a></li> <li><a href="/wiki/Talk:Voyager_program" title="Talk:Voyager program">Talk:Voyager program</a></li></ul></div><div class="mw-category-group"><h3>W</h3> <ul><li><a href="/wiki/Talk:Wall" title="Talk:Wall">Talk:Wall</a></li> <li><a href="/wiki/Talk:War_elephant" title="Talk:War elephant">Talk:War elephant</a></li> <li><a href="/wiki/Talk:Warehouse" title="Talk:Warehouse">Talk:Warehouse</a></li> <li><a href="/wiki/Talk:Warship" title="Talk:Warship">Talk:Warship</a></li> <li><a href="/wiki/Talk:Washer_(hardware)" title="Talk:Washer (hardware)">Talk:Washer (hardware)</a></li> <li><a href="/wiki/Talk:Washing_machine" title="Talk:Washing machine">Talk:Washing machine</a></li> <li><a href="/wiki/Talk:Waste" title="Talk:Waste">Talk:Waste</a></li> <li><a href="/wiki/Talk:Waste_management" title="Talk:Waste management">Talk:Waste management</a></li> <li><a href="/wiki/Talk:Watch" title="Talk:Watch">Talk:Watch</a></li> <li><a href="/wiki/Talk:Water_purification" title="Talk:Water purification">Talk:Water purification</a></li> <li><a href="/wiki/Talk:Water_supply_network" title="Talk:Water supply network">Talk:Water supply network</a></li> <li><a href="/wiki/Talk:Water_tower" title="Talk:Water tower">Talk:Water tower</a></li> <li><a href="/wiki/Talk:Watermill" title="Talk:Watermill">Talk:Watermill</a></li> <li><a href="/wiki/Talk:Waveguide" title="Talk:Waveguide">Talk:Waveguide</a></li> <li><a href="/wiki/Talk:Weapon_of_mass_destruction" title="Talk:Weapon of mass destruction">Talk:Weapon of mass destruction</a></li> <li><a href="/wiki/Talk:Weaving" title="Talk:Weaving">Talk:Weaving</a></li> <li><a href="/wiki/Talk:Web_browser" title="Talk:Web browser">Talk:Web browser</a></li> <li><a href="/wiki/Talk:Website" title="Talk:Website">Talk:Website</a></li> <li><a href="/wiki/Talk:Wedge" title="Talk:Wedge">Talk:Wedge</a></li> <li><a href="/wiki/Talk:Welding" title="Talk:Welding">Talk:Welding</a></li> <li><a href="/wiki/Talk:Well" title="Talk:Well">Talk:Well</a></li> <li><a href="/wiki/Talk:Wheel_and_axle" title="Talk:Wheel and axle">Talk:Wheel and axle</a></li> <li><a href="/wiki/Talk:Wheelbarrow" title="Talk:Wheelbarrow">Talk:Wheelbarrow</a></li> <li><a href="/wiki/Talk:Wheelchair" title="Talk:Wheelchair">Talk:Wheelchair</a></li> <li><a href="/wiki/Talk:Wi-Fi" title="Talk:Wi-Fi">Talk:Wi-Fi</a></li> <li><a href="/wiki/Talk:Wind_turbine" title="Talk:Wind turbine">Talk:Wind 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