Imperial Bacteriological Laboratory, Muktesar, Punjab, India: incubator room showing three incubators. Photograph, 1897. https://www.rawpixel.com/image/13982870/photo-image-technology-public-domain-wallFree Image from public domain licenseMangahao Hydro-Electric scheme : 1924 (1924) by Leslie Adkin. https://www.rawpixel.com/image/13029096/mangahao-hydro-electric-scheme-1924-1924-leslie-adkinFree Image from public domain licenseArkansawyers auto camp, filled almost completely with Arkansas migrants. Greenfield, Salinas Valley, California. Rent ten… https://www.rawpixel.com/image/12245093/photo-image-person-sky-lightFree Image from public domain licenseElectricity: J. Cuthbertson's electro-static generator. Engraving, 1804, by W. Lowry. https://www.rawpixel.com/image/13994742/image-technology-public-domain-drawingFree Image from public domain licenseA hydraulic system for a Rowntree's fire engine. Engraving by W. Lowry, 1812, after J. Farey. https://www.rawpixel.com/image/13975723/image-airplane-pattern-fireFree Image from public domain licenseVintage bath water heater isolated image on white https://www.rawpixel.com/image/10194049/vintage-bath-water-heater-isolated-image-whiteView licenseFront View of Ladle Emptying Molten Metal into Moulds, Pig Iron Machine, Pittsburg[h], Pa., U.S.A. by B L Singley https://www.rawpixel.com/image/14295639/photo-image-cross-public-domain-factoryFree Image from public domain licenseAn essay on electricity. Explaining the principles of that useful science : and describing the instruments, contrived either… https://www.rawpixel.com/image/14013411/image-person-art-technologyFree Image from public domain licenseMrs. Lon Allen stirring the soup in her home near Iron River, Michigan by Russell Lee https://www.rawpixel.com/image/12148277/image-person-art-vintageFree Image from public domain licenseInventions: a rat-trap (top) a bellows (centre) and an electrical capacitor [] (below). Engraving. https://www.rawpixel.com/image/13993126/image-art-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Electrified barbed wire fence, Louisa County, Virginia]. Sourced from the Library of… https://www.rawpixel.com/image/12311682/image-pattern-sky-animalFree Image from public domain licenseVintage bath water heater isolated image on white https://www.rawpixel.com/image/10186662/vintage-bath-water-heater-isolated-image-whiteView licenseEnamelling: a workshop for artificial pearls (above), equipment (below). Engraving by Defehrt after L.J. Goussier. https://www.rawpixel.com/image/14012865/image-cartoon-person-artFree Image from public domain licenseConversion. Copper and brass processing. A mechanical feeder is here shown running billets of brass into an electric… https://www.rawpixel.com/image/12307058/image-technology-wood-factoryFree Image from public domain licenseInternational cotton picker on Hopson Plantation, Clarksdale, Mississippi Delta, Mississippi. Sourced from the Library of… https://www.rawpixel.com/image/12244338/photo-image-public-domain-cotton-architectureFree Image from public domain licenseThis Norton cutter-grinder which had been specially adapted to grind cams on the motor shaft for the electric dry shaver… https://www.rawpixel.com/image/12307086/image-plant-technology-shapeFree Image from public domain licenseElements of galvanism, in theory and practice; with a comprehensive view of its history, from the first experiments of… https://www.rawpixel.com/image/14009661/image-person-pattern-public-domainFree Image from public domain license[Untitled photo, possibly related to: Running milk cans through sterilizing machine, Farmington, Minnesota]. Sourced from… https://www.rawpixel.com/image/12317706/image-person-public-domain-manFree Image from public domain licenseSpindles of rust cotton picker on Cloverdale Plantation, Clarksdale, Mississippi Delta, Mississippi. Sourced from the… https://www.rawpixel.com/image/12242135/photo-image-technology-public-domain-rustFree Image from public domain licenseHome of Mr. and Mrs. William McCarthy. He works at Arrows Hart-Hageman Electric Company, and they are natives of Hartford… https://www.rawpixel.com/image/12247338/photo-image-arrows-public-domain-hospitalFree Image from public domain licenseEngineering: an assortment of taps. Engraving by J. B. Taylor after J. Varley. https://www.rawpixel.com/image/13981847/engineering-assortment-taps-engraving-taylor-after-varleyFree Image from public domain licenseHistoire des accouchements chez tous les peuples / par G.-J. Witkowski. https://www.rawpixel.com/image/14017218/histoire-des-accouchements-chez-tous-les-peuples-par-g-j-witkowskiFree Image from public domain licenseElectricity: electrical equipment, batteries, etc., and frogs' legs. Engraving, 18--, by Cooper. https://www.rawpixel.com/image/14005854/image-paper-cartoon-personFree Image from public domain licenseBetween Tulare and Fresno, California. From the overpass approaching Fresno. Sourced from the Library of Congress. https://www.rawpixel.com/image/12246453/photo-image-sky-technology-public-domainFree Image from public domain licenseTrafo's en schakelaars op onbekende locatie in de Verenigde Staten (1936) by Wouter Cool https://www.rawpixel.com/image/13756405/photo-image-paper-sky-public-domainFree Image from public domain licenseMachinery used in the making of gold thread. Etching by Bénard after Lucotte. https://www.rawpixel.com/image/13990929/machinery-used-the-making-gold-thread-etching-benard-after-lucotteFree Image from public domain licenseConsiderations on the medicinal use of factitious airs and on the manner of obtaining them in large quantities. [Parts I-II]… https://www.rawpixel.com/image/14004934/image-art-pattern-circleFree Image from public domain licenseMrs. J. Webster ironing while her sons look on. Tehama County, California by Russell Lee https://www.rawpixel.com/image/12143834/image-face-person-artFree Image from public domain licenseElectricity: an electrometer attached to an electro-static generator. Engraving, 1769. https://www.rawpixel.com/image/13972993/image-paper-cartoon-personFree Image from public domain licenseLamp bestaande uit acht zijden met ribben in grillige gebogen puntvormen (c. 1920) by Joseph Crouwel https://www.rawpixel.com/image/13748800/image-public-domain-chandelier-architectureFree Image from public domain licenseElectricity: a large electro-static generator, on an isolating frame []. Engraving. https://www.rawpixel.com/image/13986833/image-frame-airplane-technologyFree Image from public domain licenseChemistry: a balance (top), distillation (centre), and casting (below). Engraving by le Canu [after L.J. Goussier ]. https://www.rawpixel.com/image/14019535/image-paper-cartoon-artFree Image from public domain license[Untitled photo, possibly related to: Electric shovel loading iron ore into railroad cars, eight cubic yards per shovelful.… https://www.rawpixel.com/image/12286306/photo-image-mountain-public-domain-soilFree Image from public domain licenseBath Iron Works, shipbuilders and engineers. Bath, Maine. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277692/photo-image-sky-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Electric power shovels scoop up iron ore; eight cubic yards per shovelful. Albany Mine… https://www.rawpixel.com/image/12286240/photo-image-person-public-domain-architectureFree Image from public domain licenseGreat Lakes boat taking on iron ore at Allouez, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286120/photo-image-person-sky-smokeFree Image from public domain licenseElectric shovel loading iron ore into railroad cars, eight cubic yards per shovelful. Mahoning Mine. Hibbing, Minnesota.… https://www.rawpixel.com/image/12286241/photo-image-person-public-domain-manFree Image from public domain licenseArtisan working with wood https://www.rawpixel.com/image/16427/premium-photo-image-accuracy-cabinet-maker-carpenterView licenseArtisan working with wood https://www.rawpixel.com/image/16355/premium-photo-image-accuracy-bearded-cabinet-makerView licenseMr. and Mrs. C. Farnsworth live in a trailer which they bought about three months ago. He works at the Bath Iron Works. They… https://www.rawpixel.com/image/12277669/photo-image-face-person-boomFree Image from public domain license[Untitled photo, possibly related to: Loading lake boat with iron ore. Allouez, Wisconsin]. Sourced from the Library of… https://www.rawpixel.com/image/12286433/photo-image-person-smoke-public-domainFree Image from public domain licenseNew type of plating machine being used at the Hamilton Standard Propeller Corporation. It automatically dips the part into… https://www.rawpixel.com/image/12277889/photo-image-person-public-domain-factoryFree Image from public domain licenseIron ore docks at Allouez, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284837/photo-image-person-sky-public-domainFree Image from public domain licenseIron ore docks. Allouez, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12285165/photo-image-sky-public-domain-waterFree Image from public domain licenseLititz, Pennsylvania. In curb scrap collection drive, one housewife donated a sewing machine. Sourced from the Library of… https://www.rawpixel.com/image/12291274/photo-image-public-domain-architecture-metalFree Image from public domain licenseMrs. Koltias ironing clothes. Aliquippa, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272450/photo-image-face-person-public-domainFree Image from public domain licenseBath Iron Works, shipbuilders and engineers. Bath, Maine. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278916/photo-image-sky-smoke-oceanFree Image from public domain license[Untitled photo, possibly related to: Iron ore docks at Allouez, Wisconsin]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284893/photo-image-smoke-public-domain-waterFree Image from public domain license[Untitled photo, possibly related to: Middletown, Connecticut, with a bridge across the Connecticut River]. Sourced from the… https://www.rawpixel.com/image/12279094/photo-image-sky-public-domain-archFree Image from public domain licenseStove in home of destitute Ozark family, Arkansas. Sourced from the Library of Congress. https://www.rawpixel.com/image/12255183/photo-image-person-art-public-domainFree Image from public domain license[Untitled photo, possibly related to: Las Vegas, Nevada. A mass of transmission towers and transformers redistributing power… https://www.rawpixel.com/image/12297890/photo-image-person-sky-public-domainFree Image from public domain licenseElectric power shovels scoop up iron ore; eight cubic yards per shovelful. Albany Mine near Bovey, Minnesota. Sourced from… https://www.rawpixel.com/image/12285029/photo-image-person-sky-public-domainFree Image from public domain licenseStove in Miller and Brown's store. Wilson, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268734/photo-image-person-public-domain-interior-designFree Image from public domain licensePrunes in tin dryer on top of an electric stove where they will stand for twenty-four to thirty-six hours. Sourced from the… https://www.rawpixel.com/image/12297370/photo-image-hand-person-artFree Image from public domain licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Reel storage. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293165/photo-image-sky-wood-public-domainFree Image from public domain license[Untitled photo, possibly related to: Iron furnace in Jackson, Ohio]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12252472/photo-image-plant-person-skyFree Image from public domain licenseExample of how NOT to put up electric wires on a farm near North Branford, Connecticut (safety film). Sourced from the… https://www.rawpixel.com/image/12275975/photo-image-background-pattern-woodFree Image from public domain licenseHorse collars, spades and rakes, etc. in hardware store. San Augustine Texas by Russell Lee https://www.rawpixel.com/image/12175223/image-art-horse-vintageFree Image from public domain licenseAircraft motor casings at the Pratt and Whitney Aircraft Corporation. East Hartford, Connecticut. Sourced from the Library… https://www.rawpixel.com/image/12279062/photo-image-background-person-patternFree Image from public domain licenseGarrett County, Maryland. Interior of a house. Sourced from the Library of Congress. https://www.rawpixel.com/image/12253784/photo-image-wood-public-domain-houseFree Image from public domain licenseWorker cleaning disks of machine used to separate husks from kernel in rice mill operation. State rice mill, Crowley… https://www.rawpixel.com/image/12172717/image-art-vintage-public-domainFree Image from public domain license[Untitled photo, possibly related to: Iron ore docks. Allouez, Wisconsin]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286147/photo-image-person-public-domain-waterFree Image from public domain license[Untitled photo, possibly related to: Electric shovel loading iron ore into railroad cars, eight cubic yards per shovelful.… https://www.rawpixel.com/image/12286274/photo-image-person-sky-public-domainFree Image from public domain licenseWashington, D.C. Interiors of wrecked homes on Independence Avenue across from the Smithsonian Institute. Sourced from the… https://www.rawpixel.com/image/12267825/photo-image-technology-public-domain-blackFree Image from public domain licenseArtisan working with wood https://www.rawpixel.com/image/16452/premium-photo-image-accuracy-bearded-cabinet-makerView licenseOld stove in general store. Wilson, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268960/photo-image-person-art-public-domainFree Image from public domain license[Untitled photo, possibly related to: Detail of cleaning apparatus on portable-type mechanical hop picker, Yakima Chief Hop… https://www.rawpixel.com/image/12173278/image-art-pattern-vintageFree Image from public domain license[Untitled photo, possibly related to: Mr. and Mrs. C. Farnsworth live in a trailer which they bought about three months ago.… https://www.rawpixel.com/image/12277699/photo-image-face-person-boomFree Image from public domain licenseElectrical wiring left to disintegrate following the slowdown of mining operations and the partial abandonment of the town.… https://www.rawpixel.com/image/12150051/image-person-art-skyFree Image from public domain license[Untitled photo, possibly related to: Iron furnace in Jackson, Ohio]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12252636/photo-image-plant-sky-treeFree Image from public domain licenseLoading iron ore into hold of boat. First mate directing operations. Allouez, Wisconsin. Sourced from the Library of… https://www.rawpixel.com/image/12286416/photo-image-person-smoke-public-domainFree Image from public domain licenseLoading lake boat with iron ore. Allouez, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284855/photo-image-person-smoke-public-domainFree Image from public domain licenseIron ore docks at Allouez, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286144/photo-image-person-public-domain-waterFree Image from public domain license[Untitled photo, possibly related to: Iron ore docks at Allouez, Wisconsin]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286043/photo-image-person-public-domain-waterFree Image from public domain license