Production. B-17 heavy bomber. An Army sentry guards new B-17F (Flying Fortress) bombers at the airfield of Boeing's Seattle… https://www.rawpixel.com/image/12306473/image-cloud-plant-personFree Image from public domain licenseProduction. Industrial alcohol. In the "high wine" room of a former whiskey distillery, high-test ethyl alcohol (190 proof)… https://www.rawpixel.com/image/12307029/image-person-hospital-factoryFree Image from public domain licenseProduction. B-17 heavy bomber. Two of the four mighty engines of a new B-17F (Flying Fortress) bomber loom up against a… https://www.rawpixel.com/image/12239689/photo-image-background-cloud-plantFree Image from public domain licenseProduction. Pratt and Whitney airplane engines. A gear for a Pratt and Whitney engine is tested for hardness on a Rockwell… https://www.rawpixel.com/image/12306999/image-plant-people-artFree Image from public domain licenseProduction. B-17 heavy bomber. Another mighty B-17F (Flying Fortress) bomber sets out on a test flight from the airfield of… https://www.rawpixel.com/image/12303428/image-plant-sky-airplaneFree Image from public domain licenseProduction. Airplane propellers. A three-bladed hydromatic propeller assembly for an American warplane is tested for oil… https://www.rawpixel.com/image/12240210/photo-image-plant-person-planeFree Image from public domain licenseProduction. B-17 heavy bomber. An Army sentry guards new B-17F (Flying Fortress) bombers at the airfield of Boeing's Seattle… https://www.rawpixel.com/image/12239870/photo-image-cloud-plant-personFree Image from public domain licenseProduction. Pratt and Whitney airplane engines. Magneto driving gears for Pratt and Whitney airplane motors are tested for… https://www.rawpixel.com/image/12307917/image-plant-person-artFree Image from public domain licenseProduction. Aircraft engines. Foreman F.I. Bowman shows Marietta Morgan how to operate this bomb-test machine used to test… https://www.rawpixel.com/image/12306779/image-plant-person-airplaneFree Image from public domain licenseProduction. B-17 heavy bomber. The bombardier's compartment in the nose of a new B-17F (Flying Fortress) bomber shows up… https://www.rawpixel.com/image/12306725/image-cloud-plant-skyFree Image from public domain licenseConversion. Safety razor plant. Checking dimensions of completed V-block, shop supervisor George Cole explains testing… https://www.rawpixel.com/image/12307046/image-face-plant-personFree Image from public domain licenseProduction. M-4 tanks. Cannon and front turret armored plate are lowered into place on an M-4 tank. Machine guns have… https://www.rawpixel.com/image/12307620/image-person-factory-manFree Image from public domain licenseAluminum casting. The heads of these heat-treated pistons must be spotted prior to Brinnell hardness testing. Young women… https://www.rawpixel.com/image/12307070/image-person-art-tapeFree Image from public domain license(Illustration for Rubáiyát of Omar Khayyám) The Throne of Saturn by Elihu Vedder. Original public… https://www.rawpixel.com/image/9700614/image-vintage-planet-illustrationFree Image from public domain licenseProduction. B-17 heavy bomber. Tail view of a new B-17F (Flying Fortress) bomber ready for flight tests at the airfield of… https://www.rawpixel.com/image/12240846/photo-image-plant-person-skyFree Image from public domain licenseU.S. Marine Corps recruit Bianca A. Jimenez of Platoon 4002, Papa Company, 4th Recruit Training Battalion, passes ammo cans… https://www.rawpixel.com/image/8739306/photo-image-public-domain-person-graduationFree Image from public domain licenseA New Jersey National Guard Airman directs traffic at a COVID-19 Community-Based Testing Site at the PNC Bank Arts Center in… https://www.rawpixel.com/image/3581526/free-photo-image-air-national-guard-airmen-apparelFree Image from public domain licenseA New Jersey National Guard Airman from the 108th Security Forces Squadron directs traffic at a COVID-19 Community-Based… https://www.rawpixel.com/image/3581527/free-photo-image-air-national-guard-airmen-apparelFree Image from public domain licenseMedical technicians process patients at a COVID-19 Community-Based Testing Site at the PNC Bank Arts Center in Holmdel… https://www.rawpixel.com/image/3583350/free-photo-image-air-national-guard-airmen-apparelFree Image from public domain licenseMedical technicians process patients at a COVID-19 Community-Based Testing Site at the PNC Bank Arts Center in Holmdel… https://www.rawpixel.com/image/3583362/free-photo-image-air-national-guard-airmen-alloy-wheelFree Image from public domain licenseNew Jersey Air National Guard Master Sgt. Jason Mell, 108th Medical Group, puts on a protective mask at a COVID-19 Community… https://www.rawpixel.com/image/3581524/free-photo-image-air-national-guard-airmen-apparelFree Image from public domain license[Untitled photo, possibly related to: Mrs. M.C. Ray from Mangum, Louisiana. Wife of construction worker at Camp Livingston… https://www.rawpixel.com/image/12331845/image-person-art-woodFree Image from public domain licenseMrs. M.C. Ray from Mangum, Louisiana. Wife of construction worker at Camp Livingston who had been farming but came out here… https://www.rawpixel.com/image/12333147/image-dog-face-peopleFree Image from public domain licenseMrs. M.C. Ray from Mangum, Louisiana. Wife of construction worker at Camp Livingston who had been farming but came out here… https://www.rawpixel.com/image/12331465/image-plant-person-treeFree Image from public domain licenseNurse training. A student nurse stands by ready to assist the doctor as he changes a metal tube in a patient's throat… https://www.rawpixel.com/image/12302781/image-face-person-womanFree Image from public domain licenseFirst book on anatomy, physiology, and hygiene - for grammar schools and families (1849), vintage human body illustration.… https://www.rawpixel.com/image/11064725/image-face-art-vintageFree Image from public domain licensePlacard calling for an end to police terror used at protests in Washington, DC https://www.rawpixel.com/image/9064714/photo-image-background-paper-vintageFree Image from public domain license Gerardus Mercator natus Rupelmundæ III non. Martii anno MDXII, vixit ann. LXXXII. M. VIII. D. XXVI, denatus IV… https://www.rawpixel.com/image/8906096/image-art-vintage-booksFree Image from public domain licenseConversion. Beverage containers to aviation oxygen cylinders. Before completion of the fourth and final welding operation in… https://www.rawpixel.com/image/12307077/image-person-airplane-technologyFree Image from public domain licenseA prototype HP/HT Well Plate Reactor photographed during a development test by the Engineering Small Projects Support (EsPS)… https://www.rawpixel.com/image/10995742/photo-image-public-domain-plate-laboratoryFree Image from public domain licenseProduction. B-17 heavy bomber. An Army sentry guards new B-17F (Flying Fortress) bombers at the airfield of Boeing's Seattle… https://www.rawpixel.com/image/12306484/image-cloud-face-plantFree Image from public domain licenseProduction. B-17 heavy bomber. Fueling a new B-17F (Flying Fortress) bombers at the airfield of Boeing's Seattle plant.… https://www.rawpixel.com/image/12240194/photo-image-plant-person-skyFree Image from public domain licenseWomen in industry. Gas mask production. She used to wrap bread in a bakery, before Pearl Harbor, but today twenty-one-year… https://www.rawpixel.com/image/12307756/image-face-hand-personFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. New B-24E (Liberator) bombers, just off the assembly lines at Ford's… https://www.rawpixel.com/image/12306531/image-plant-person-skyFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. A new B-24E (Liberator) bomber, just off the assembly line at Ford's… https://www.rawpixel.com/image/12306609/image-dog-plant-skyFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. A new B-24E (Liberator) bomber, just off the assembly line at Ford's… https://www.rawpixel.com/image/12307378/image-plant-person-skyFree Image from public domain licenseProduction. Pratt and Whitney airplane engines. A gear for a Pratt and Whitney engine is tested for hardness on a Rockwell… https://www.rawpixel.com/image/12308170/image-face-plant-handFree Image from public domain licenseWomen in industry. Tool production. Testing small diameter, high-speed twist drills, this young woman employed by a Midwest… https://www.rawpixel.com/image/12306834/image-face-hand-personFree Image from public domain licenseConversion. Beverage containers to aviation oxygen cylinders. An oxygen cylinder for high altitude flying, manufactured by… https://www.rawpixel.com/image/12240549/photo-image-plant-people-balloonFree Image from public domain licenseThe M-7 is the Army's newest tank destroyer and is really a "killer." Being tested for desert warfare at Iron Mountains… https://www.rawpixel.com/image/12239814/photo-image-person-mountains-manFree Image from public domain licenseScience and research. Studies of non-coking coals. Research workers at the Golden, Colorado field station of the U.S. Bureau… https://www.rawpixel.com/image/12303374/image-person-golden-technologyFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. A new B-24E (Liberator) bomber, just off the assembly line at Ford's… https://www.rawpixel.com/image/12307605/image-plant-person-airplaneFree Image from public domain licenseConversion. Copper and brass processing. Analyzing the amount of copper and lead in the brasses. In this test the laboratory… https://www.rawpixel.com/image/12306891/image-hand-person-technologyFree Image from public domain licenseConversion. Beverage containers to aviation oxygen cylinders. Before completion of the fourth and final welding operation in… https://www.rawpixel.com/image/12240535/photo-image-person-technology-factoryFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. New B-24E (Liberator) bombers, just off the assembly lines at Ford's… https://www.rawpixel.com/image/12306734/image-plant-person-skyFree Image from public domain licenseWomen in industry. Gas mask production. The finished gas mask face pieces in the foreground were just flaps of rubber… https://www.rawpixel.com/image/12301925/image-face-plant-handsFree Image from public domain licenseConversion. Beverage containers to aviation oxygen cylinders. After shatterproof oxygen cylinders for high altitude flying… https://www.rawpixel.com/image/12307075/image-plant-person-appleFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. New B-24E (Liberator) bombers, just off the assembly lines at Ford's… https://www.rawpixel.com/image/12306554/image-plant-person-skyFree Image from public domain licenseProduction. B-24E (Liberator) bombers at Willow Run. New B-24E (Liberator) bombers just completed at Ford's big Willow Run… https://www.rawpixel.com/image/12306737/image-plant-person-airplaneFree Image from public domain licenseDisabled Army veteran, new farmer and owner-operator of Prado Recreation Inc. Ruben Llamas, leases more than 585 acres from… https://www.rawpixel.com/image/9654731/image-dogs-plant-personFree Image from public domain licenseEmployees of an Auto Emission Inspection Station in Downtown Cincinnati, Ohio, Wait for Business at 8:30 on a Weekday… https://www.rawpixel.com/image/8799983/photo-image-public-domain-personFree Image from public domain licenseEmployee at the Hamilton County Auto Emission Inspection Station at Newtown, Ohio. She Is Filling Out the Emissions Data… https://www.rawpixel.com/image/8770553/photo-image-man-worker-testFree Image from public domain licenseTelemachus Describes How He Was Admitted into the Assembly in Crete, from The Adventures of Telemachus, Book 5 by Bartolomeo… https://www.rawpixel.com/image/8976136/image-crown-paper-plantFree Image from public domain licenseProduction. B-17 heavy bomber. Another mighty B-17F (Flying Fortress) bomber sets out on a test flight from the airfield of… https://www.rawpixel.com/image/12241050/photo-image-cloud-plant-skyFree Image from public domain licenseProduction. Aircraft engines. African American women with no previous industrial experience are reconditioning used spark… https://www.rawpixel.com/image/12306746/image-plant-hand-personFree Image from public domain licenseProduction. Aircraft engines. Reconditioning used spark plugs for reuse in testing airplane motors, Mighnon Gunn operates… https://www.rawpixel.com/image/12301929/image-face-plant-handFree Image from public domain licenseArmy halftrac scout cars ready for final test. When the test drivers of a large Midwest plant get through doing their stuff… https://www.rawpixel.com/image/12306544/image-plant-person-roadFree Image from public domain licenseThe chassis of an Army halftrac scout car get a workout. When this test driver at a large Midwest plant has put the machine… https://www.rawpixel.com/image/12241123/photo-image-face-plant-personFree Image from public domain licenseNurse training. A student nurse (right) assists the doctor with a lumbar puncture, an important diagnostic procedure for… https://www.rawpixel.com/image/12303677/image-person-hospital-doctorFree Image from public domain licenseThe mystic test book; or, The magic of the cards. Giving the mystic meaning of these wonderful and ancient emblems in their… https://www.rawpixel.com/image/11493488/image-dog-face-personsFree Image from public domain licenseDisabled Army veteran, new farmer and owner-operator of Prado Recreation Inc. Ruben Llamas, leases more than 585 acres from… https://www.rawpixel.com/image/9654752/photo-image-dogs-plant-peopleFree Image from public domain licenseAnalytical Process Engineer, ABPDU, prepares a prototype HP/HT Well Plate Reactor during a development test by the… https://www.rawpixel.com/image/10993954/photo-image-person-woman-public-domainFree Image from public domain licenseAnalytical Process Engineer prepares a prototype HP/HT Well Plate Reactor during a development test by the Engineering Small… https://www.rawpixel.com/image/10994037/photo-image-person-tape-public-domainFree Image from public domain licenseMedical staff collect samples from a patient at a COVID-19 Community-Based Testing Site at the PNC Bank Arts Center in… https://www.rawpixel.com/image/3578816/free-photo-image-america-army-national-guard-careerFree Image from public domain licenseThe mystic test book; or, The magic of the cards. Giving the mystic meaning of these wonderful and ancient emblems in their… https://www.rawpixel.com/image/11493580/image-face-hearts-artFree Image from public domain licenseChang Dou, Process Analytical Chemist, ABPDU, prepares colored liquid as part of a test on a prototype HP/HT Well Plate… https://www.rawpixel.com/image/11072890/photo-image-person-tape-public-domainFree Image from public domain licenseSamuel Romes (right), Senior Research Associate, ABPDU, Hemant Choudhary (center), Postdoctoral Researcher, Joint BioEnergy… https://www.rawpixel.com/image/11072889/photo-image-person-public-domain-technologyFree Image from public domain licenseVentilators arrive in Ghana. Thanks to the United States' unwavering commitment to the people of Ghana, USAID is donating… https://www.rawpixel.com/image/4050490/photo-image-covid-wood-personFree Image from public domain licenseThe cat, a guide to the classification and varieties of cats and a short tratise upon their care, diseases, and treatment… https://www.rawpixel.com/image/11493465/image-face-cat-artFree Image from public domain licenseWake Vortex Study at Wallops IslandThe air flow from the wing of this agricultural plane is made visible by a technique that… https://www.rawpixel.com/image/8718011/photo-image-smoke-planes-public-domainFree Image from public domain licenseLithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe and is considered to be one of… https://www.rawpixel.com/image/7667030/image-art-vintage-firesFree Image from public domain licenseU.S. Army Reserve Spc. Christopher Landon, a motor transport operator assigned to the 182nd Transportation Company, fires an… https://www.rawpixel.com/image/8727815/photo-image-public-domain-person-manFree Image from public domain licenseSt. Francis Receiving the Stigmata (1887) angel illustration by Sir Edward Coley Burne-Jones. Original public domain image… https://www.rawpixel.com/image/10103555/image-person-art-skyFree Image from public domain licenseNieuport 28C.1, vintage airplane image. Original public domain image from The Smithsonian Institution. Digitally enhanced by… https://www.rawpixel.com/image/10103391/photo-image-rose-plant-handsFree Image from public domain licensePrayer Book: Arganonä Maryam (The Organ of Mary), attributed to Baselyos (The Ground Hornbill Master) https://www.rawpixel.com/image/9241512/prayer-book-arganona-maryam-the-organ-maryFree Image from public domain license