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[Movement of human appendages and pulley systems compared using principles of mechanics and statics]

[Movement of human appendages and pulley systems compared using princi...

Illus. in: De motu animalium / Giovanni Alfonso Borelli. 2 vols. Romae : Ex Typographis A. Bernabo, 1680-1681. Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of Congress, ... More

[Detail of "Progress of Civilization" east pediment of the Senate wing, U.S. Capitol]

[Detail of "Progress of Civilization" east pediment of the Senate wing...

Photograph of maquette showing mechanic with a hammer and gear. In album: Benjamin Brown French "Photographs," p. 79. Reference copy in LOT 12251, v. 1. Original in PR 12 LOT 12251.

Tools for radio mechanics. Various radio tools

Tools for radio mechanics. Various radio tools

Public domain photograph - historical image of Washington DC, United States, free to use, no copyright restrictions image - Picryl description

Head of Sears-Roebuck approves Roosevelt housing program. Washington, D.C., Dec. 6. Robert E. Wood, (left) President of Sears- Roebuck Co., today told the Senate Banking and Currency Committee that the proposed New Housing Program "provides for the first time the mechanics to allow a man in the low income group to buy a house". Wood is shown with Senator Robert F. Wagner, author of the Wagner Housing Act. 12/6/37

Head of Sears-Roebuck approves Roosevelt housing program. Washington, ...

Two men standing next to each other in a room. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Bureau of Standards designs mechanical batter to determine liveliness of baseballs. Washington, D.C., Feb. 21. Using a newly designed apparatus, the U.S. Bureau of Standards today began experiments to determine the relative home-run qualities of American, National and International baseballs. In conducting the tests a scientist pulls the trigger of an air gun loaded with a wooden projectile representing the slugger's bat. The projectile strikes a baseball causing it to fly toward a ballistic pendulum. After each of such hits the scientist takes a reading on the pendulum. It tells him how hard the ball hit the pendulum, or whether it was a homerun, a double, [...]st a pop fly. Dr. H.L. Dryden, Chief [...]e Division of Mechanics and Sound, Designed the machine and is supervising the tests. He is [...] right while on the left is Edward B. Eynon, Secretary of the Washington Baseball Club, 2/21/38

Bureau of Standards designs mechanical batter to determine liveliness ...

Two men working on a machine in a factory. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

High school Victory Corps. Future airplane mechanics tear planes apart, build them up again in aeronautics class at Washington High School, Los Angeles, California

High school Victory Corps. Future airplane mechanics tear planes apart...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Naval air base, Corpus Christi, Texas. Feeding an SNC advanced training plane its essential supply of gasoline is done by sailor mechanics at the naval air base in Corpus Christi, Texas. Standing on the wing is Floyd Helphrey who came from Iowa to join the Navy early in the year. At right is W. Gardner of Illinois who used to be a crane operator

Naval air base, Corpus Christi, Texas. Feeding an SNC advanced trainin...

Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.

Latest addition to D.C. War Housing Program. Mechanics laying pipe at Wake and Midway Halls, latest addition to the housing for war workers in Washington, D.C. The new buildings will house 1,000 Negro women war workers and is being completed by Samuel Plato, contractor

Latest addition to D.C. War Housing Program. Mechanics laying pipe at ...

Picryl description: Public domain historical photo of Washington DC during the First World War, free to use, no copyright restrictions image.

Fort Knox. Negro mechanics. He plays an important part in keeping army tansport fleets rolling. This Negro soldier, who serves as truck driver and mechanic, handles many repair and adjustment jobs at Fort Knox, Kentucky

Fort Knox. Negro mechanics. He plays an important part in keeping army...

Picryl description: Public domain image of military training, armed forces fort, camp, exercise activity, free to use, no copyright restrictions.

Production. A-20 attack bombers. Tail view of a new A-20 attack bomber on Long Beach, California flight ramp of Douglas Aircraft Company. Mechanics complete final checks before test flight and delivery to the Army. The A-20 is used by the American Air Force and Royal Air Force (RAF) for hedge hopping and strafing operations against ground troops and installations--also for reconnaissance work and night fighting. It is armed with light and heavy caliber guns

Production. A-20 attack bombers. Tail view of a new A-20 attack bomber...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. C-47 transport planes. Expert mechanics complete final delivery arrangements on a group of C-47 transport planes at the Long Beach, California, plant of Douglas Aircraft Company. The versatile C-47 performs many important tasks for the Army. It ferries men and cargo across oceans and mountains, tows gliders and brings paratroopers and their equipment to scenes of action

Production. C-47 transport planes. Expert mechanics complete final del...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Bar Harbor, Maine. Civil Air Patrol base headquarters of coastal patrol no. 20. Ground crew mechanics overhauling a tail assembly during routine check-over

Bar Harbor, Maine. Civil Air Patrol base headquarters of coastal patro...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Mechanics & apprentices wanted for enlistment in the Construction Division of the Army

Mechanics & apprentices wanted for enlistment in the Construction Divi...

U.S. Army recruiting poster showing a map of the United States entitled "The work of the Construction Division of the Army" which identifies locations as "National Guard Camps", "Signal Corps Camps", "Tank Corp... More

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora County, NM

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora Cou...

Unprocessed Field note material exists for this structure: N875 Survey number: HABS NM-164-V Building/structure dates: 1867 Initial Construction Building/structure dates: 1876 Subsequent Work Building/struc... More

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora County, NM

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora Cou...

Unprocessed Field note material exists for this structure: N875 Survey number: HABS NM-164-V Building/structure dates: 1867 Initial Construction Building/structure dates: 1876 Subsequent Work Building/struc... More

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora County, NM

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora Cou...

Unprocessed Field note material exists for this structure: N875 Survey number: HABS NM-164-V Building/structure dates: 1867 Initial Construction Building/structure dates: 1876 Subsequent Work Building/struc... More

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora County, NM

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora Cou...

Unprocessed Field note material exists for this structure: N875 Survey number: HABS NM-164-V Building/structure dates: 1867 Initial Construction Building/structure dates: 1876 Subsequent Work Building/struc... More

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west side between A Street & Third Street, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west si...

Significance: Building 271 is a contributing element of the Mare Island Historic District. Building 271 is highly significant as the earliest of the "curtain-wall" industrial buildings at Mare Island, a distin... More

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, Lackawanna County, PA

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, La...

Significance: This design includes many different orders of Classic Revival Architecture. All these elements combine to present a strong design, suitable for the image a financial institution would want to exhi... More

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, Lackawanna County, PA

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, La...

Significance: This design includes many different orders of Classic Revival Architecture. All these elements combine to present a strong design, suitable for the image a financial institution would want to exhi... More

[Unidentified soldier in 1st Michigan Regiment of Engineers and Mechanics private's uniform holding Hardee hat with castle insignia]

[Unidentified soldier in 1st Michigan Regiment of Engineers and Mechan...

Case: Leather geometric circle design. Additional information in collections file. Gift; Tom Liljenquist; 2010; (DLC/PP-2010:105). Forms part of: Liljenquist Family Collection of Civil War Photographs (Library... More

Merchants & Mechanics Bank Building, 56-62 North Water Street, New Bedford, Bristol County, MA

Merchants & Mechanics Bank Building, 56-62 North Water Street, New Bed...

Significance: A commercial building forming part of the old waterfront district of New Bedford, designed by Russell Warren in the form of a Greek Ionic temple. Survey number: HABS MA-683 Building/structure da... More

Rational Recreations - Harry Houdini collection

Rational Recreations - Harry Houdini collection

Picryl description: Public domain philosophy book, free to use, no copyright restrictions image.

Rational Recreations - Harry Houdini collection

Rational Recreations - Harry Houdini collection

Picryl description: Public domain philosophy book, free to use, no copyright restrictions image.

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

[Petersburg, Virginia]. Group of mechanics of 1st Division, 9th Army Corps

[Petersburg, Virginia]. Group of mechanics of 1st Division, 9th Army C...

Picryl description: Public domain historical photo, American history, free to use, no copyright restrictions image.

National allied bazaar Mechanics Bldg. Boston December 9 to 20 / / Libbie Printing Co., Boston.

National allied bazaar Mechanics Bldg. Boston December 9 to 20 / / Lib...

Poster showing a battle scene with Allied tank, trenches, and airplanes.

Red Cross - Public domain photograph

Red Cross - Public domain photograph

Public domain photograph - female portrait, 1900s women, free to use, no copyright restrictions image - Picryl description

Bureau of Standards puts ruge insulator through pressure tests. Washington, D.C., Nov. 30. H.L. Whitemore, (left), chief of the Engineering Mechanics section, National Bureau of Standards, and Dr. A.H. Stand, make a final check of the huge 1600[?] pound porcelain insulator before subjecting it to 2,180,000 pounds pressure in the Bureau's hydraulic jack. The insulator, one of the few of its size in existence, will serve as a base for a 640 foot mast at Radio Station WGY, Schenectady, New York. One of the insulators successfully stood the pressure to 800,000 pounds while the second broke when the pressure was boosted to 2,180,000 pounds. The hydraulic jack is capable of exerting 10,000,000 pounds pressure

Bureau of Standards puts ruge insulator through pressure tests. Washin...

Public domain photograph of New York building, free to use, no copyright restrictions image - Picryl description

Fort Knox. Negro mechanics. Transmission job on an army truck at Fort Knox, Kentucky. This Negro soldier, who serves as truck driver and mechanic, plays an important part in keeping the army's transport fleets in service

Fort Knox. Negro mechanics. Transmission job on an army truck at Fort ...

Picryl description: Public domain image of an automobile, 1940s car, free to use, no copyright restrictions.

Warner Robins, Georgia. Air Service Command, Robins Field. Aircraft mechanics and ordnance men working on the rudder and tail guns of a B-24

Warner Robins, Georgia. Air Service Command, Robins Field. Aircraft me...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, Lackawanna County, PA

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, La...

Significance: This design includes many different orders of Classic Revival Architecture. All these elements combine to present a strong design, suitable for the image a financial institution would want to exhi... More

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, Lackawanna County, PA

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, La...

Significance: This design includes many different orders of Classic Revival Architecture. All these elements combine to present a strong design, suitable for the image a financial institution would want to exhi... More

Rational Recreations - Harry Houdini collection

Rational Recreations - Harry Houdini collection

Picryl description: Public domain philosophy book, free to use, no copyright restrictions image.

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Massachusetts Charitable Mechanics Association, Exhibition Hall, Huntington Avenue & West Newton Street, Boston, Suffolk County, MA

Massachusetts Charitable Mechanics Association, Exhibition Hall, Hunti...

Public domain image of a large historic building, city hall, urban architecture, free to use, no copyright restrictions - Picryl description

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Sir Isaac Newton, Head and Shoulders Portrait

Sir Isaac Newton, Head and Shoulders Portrait

Portrait, head and shoulders, facing right. Mezzotint by James McArdell after Enoch Seeman. This record contains unverified, old data from caption card. Orig. in Hubbard Coll. 5415-11 "A".

Griffith Consumers Co. Oil burner in Mechanics Building

Griffith Consumers Co. Oil burner in Mechanics Building

Picryl description: Public domain photograph of a machine, industrial equipment, engine, generator, free to use, no copyright restrictions.

Dusting plane hedge-hopping after spraying swath on beanfield. These planes can spray 100 acres an hour, can usually fly one or two hours unless it rains or storms in an average day. The ususal traveling "dusting circus" has at least three or four planes, its own pilots, mechanics and elementary repair shop. Seabrook Farms, between Bridgeton and Vineland, New Jersey

Dusting plane hedge-hopping after spraying swath on beanfield. These p...

Picryl description: Public domain image of an aircraft, flight, airplane, aviation, free to use, no copyright restrictions.

Production. Lockheed P-38 pursuit planes. New Lockheed P-38 pursuit ships that have successfully passed inspection for routine test flights are transferred to the Lockheed air terminal. Here flight mechanics take over and prepare them for the flight test. These ships have performed beautifully in action, notably in the Aleutians. They are excellent high-altitude fighters and rank among the world's fastest combat aircraft. Their long-range and great firepower give promise of their value as escorts for high- altitude bombers

Production. Lockheed P-38 pursuit planes. New Lockheed P-38 pursuit sh...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. A-20 attack bombers. Mechanics on the flight ramp on the Douglas Aircraft Company at Long Beach, California, check final adjustments on an A-20 attack bomber just before delivery to the Army. The A-20 is used by the American Air Force and Royal Air Force (RAF) for hedge hopping and strafing operations against ground troops and installations--also for reconnaissance work and night fighting. It is armed with light and heavy caliber guns

Production. A-20 attack bombers. Mechanics on the flight ramp on the D...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. A-20 attack bombers. Mechanics work in a "goldfish bowl", or bombardiers's compartment, of an A-20 attack bomber on the flight ramp of the Long Beach, California, plant of Douglas Aircraft Company. The A-20 is used by the American Air Force and Royal Air Force (RAF) for hedge hopping and strafing operations against ground troops and installations--also for reconnaissance work and night fighting. It is armed with light and heavy caliber guns

Production. A-20 attack bombers. Mechanics work in a "goldfish bowl", ...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

U.S. Negro troops in New Guinea. Captain John R. Campbell, Quartermaster Corps, left, and First Sergeant Richard Estes, right, giving technical advice to mechanics as to motor operations of one of the U.S. Army's famous "jeeps." Negro troops play an important part in New Guinea's transportation system

U.S. Negro troops in New Guinea. Captain John R. Campbell, Quartermast...

Picryl description: Public domain photograph of a car, 1930s, free to use, no copyright restrictions.

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west side between A Street & Third Street, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west si...

Significance: Building 271 is a contributing element of the Mare Island Historic District. Building 271 is highly significant as the earliest of the "curtain-wall" industrial buildings at Mare Island, a distin... More

Mechanics' Hall, 159 Congress Street, Portland, Cumberland County, ME

Mechanics' Hall, 159 Congress Street, Portland, Cumberland County, ME

Survey number: HABS ME-129 Public domain photograph of theater building, free to use, no copyright restrictions image - Picryl description

[Unidentified soldier in 1st Michigan Regiment of Engineers and Mechanics private's uniform holding Hardee hat with castle insignia]

[Unidentified soldier in 1st Michigan Regiment of Engineers and Mechan...

Case: Leather geometric circle design. Additional information in collections file. Gift; Tom Liljenquist; 2010; (DLC/PP-2010:105). Forms part of: Liljenquist Family Collection of Civil War Photographs (Library... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

The new ship "Mechanics' own", built for the Mechanics' Mining Association by Messrs. Bishop & Simonson, sailed from New York, Augt. 14th, 1849, for California

The new ship "Mechanics' own", built for the Mechanics' Mining Associa...

Printed in tints at Ackerman's, N.Y. Copyright by William S. Smith.

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

Astor Cup Race -- mechanics - Glass negative photogrpah. Public domain.

Astor Cup Race -- mechanics - Glass negative photogrpah. Public domain...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Some things new in grease paint. Miss Grace Wagner, a student at Central High, Wash., D.C. is learning the art of auto mechanics

Some things new in grease paint. Miss Grace Wagner, a student at Centr...

Grace Wagner working on engine of automobile. National Photo Company Collection. Item in album: v. 1, p. 17, no. 41023.

Sicorsky plane. Mechanics working on plane

Sicorsky plane. Mechanics working on plane

Public domain photograph of midcentury American aircraft, free to use, no copyright restrictions image - Picryl description

A black and white photo of a person on a surfboard. War Production FSA/OWI Photograph

A black and white photo of a person on a surfboard. War Production FSA...

Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.

Women are trained as engine mechanics in thorough Douglas training methods, Douglas Aircraft Company, Long Beach, Calif.

Women are trained as engine mechanics in thorough Douglas training met...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Naval air base, Corpus Christi, Texas. "And so he says to me...." sailor mechanics at the naval air base in Corpus Christi, Texas, laugh heartily over a good story between servicing operations on Navy planes

Naval air base, Corpus Christi, Texas. "And so he says to me...." sail...

Public domain photograph related to navy, naval warfare, free to use, no copyright restrictions image - Picryl description

Wayne County Airport, a United States Army Air Corps air ferry command base sixteen miles from Detroit, Michigan. Mechanics repairing a mudguard on a wheel

Wayne County Airport, a United States Army Air Corps air ferry command...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Los Angeles, California. "Flying Patch," a Currtiss "Warhawk" fighter plane complete except for engine and tail assembly, with simulated bullet holes and patches. It is used at the sheet metal mechanics school operated by the Anderson organization for the United States Army air force technical training command. The soldier trainees are shown punching holes, measuring for patch sizes, drilling, and riveting

Los Angeles, California. "Flying Patch," a Currtiss "Warhawk" fighter ...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Manpower. Negro bomber plant workers. Landing gear for American medium bombers, which will carry destruction to the heart of the Axis, is assembled in a large Eastern aircraft plant. These skilled mechanics are products of the government's extensive training program for war workers. Glenn L. Martin Bomber Plant. Baltimore, Maryland

Manpower. Negro bomber plant workers. Landing gear for American medium...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Production. C-47 transport planes. These women mechanics at the Long Beach, California, plant of Douglas Aircraft Company are learning some of the fine points of the mighty engines that power the C-47 transport plane. The versatile C-47 performs many important tasks for the Army. It ferries men and cargo across the oceans and mountains, tows gliders and brings paratroopers and their equipment to scenes of action

Production. C-47 transport planes. These women mechanics at the Long B...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Wayne County Airport, a United States Army Air Corps air ferry command base sixteen miles from Detroit, Michigan. Mechanics repairing a mudguard on a wheel

Wayne County Airport, a United States Army Air Corps air ferry command...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Fort Knox. Negro mechanics. Even army trucks need occasional carburetor adjustment. This Negro soldier, who serves as truck driver and mechanic at Fort Knox, Kentucky, plays an important part in keeping army transport fleets in operation

Fort Knox. Negro mechanics. Even army trucks need occasional carbureto...

Picryl description: Public domain image of a car, automobile, free to use, no copyright restrictions.

Myrtle Beach, South Carolina. Air Service Command. Airplane mechanics of a mobile unit working on the rudder of a B-26

Myrtle Beach, South Carolina. Air Service Command. Airplane mechanics ...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Myrtle Beach, South Carolina. Air Service Command. Mechanics of a mobile unit removing the engine of a plane

Myrtle Beach, South Carolina. Air Service Command. Mechanics of a mobi...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora County, NM

Fort Union, Mechanics' Shops, State Highway No. 161, Watrous, Mora Cou...

Unprocessed Field note material exists for this structure: N875 Survey number: HABS NM-164-V Building/structure dates: 1867 Initial Construction Building/structure dates: 1876 Subsequent Work Building/struc... More

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west side between A Street & Third Street, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west si...

Significance: Building 271 is a contributing element of the Mare Island Historic District. Building 271 is highly significant as the earliest of the "curtain-wall" industrial buildings at Mare Island, a distin... More

Mechanics Exchange Hotel, 116-122 I Street, Sacramento, Sacramento County, CA

Mechanics Exchange Hotel, 116-122 I Street, Sacramento, Sacramento Cou...

Significance: Built by Henry Treichler, the hotel served those connected with iron works, mills, and railroad activities north of I Street. Survey number: HABS CA-178 Building/structure dates: 1860 Initial Co... More

Farmers' & Mechanics' Bank, 427 Chestnut Street, Philadelphia, Philadelphia County, PA

Farmers' & Mechanics' Bank, 427 Chestnut Street, Philadelphia, Philade...

Significance: The Farmers' & Merchants' Bank, at that time the largest in the city, erected the first of the bank row structures in 1854. The building has recently been the home of the Philadelphia Maritime Mus... More

Merchants & Mechanics Bank Building, 56-62 North Water Street, New Bedford, Bristol County, MA

Merchants & Mechanics Bank Building, 56-62 North Water Street, New Bed...

Significance: A commercial building forming part of the old waterfront district of New Bedford, designed by Russell Warren in the form of a Greek Ionic temple. Survey number: HABS MA-683 Building/structure da... More

Rational Recreations - Harry Houdini collection

Rational Recreations - Harry Houdini collection

Picryl description: Public domain philosophy book, free to use, no copyright restrictions image.

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Philosophiae Naturalis Principia Mathematica.

Philosophiae Naturalis Principia Mathematica.

Also available in digital form on the Library of Congress Web site. Signatures: [A]-Z⁴, (H₂ lettered G₂), Aa-Zz⁴, ***⁴, Aaa-Ooo⁴. The second and third books were apparently printed by different printers as indi... More

[Amphibious steam powered carriage and paddle boat designed by Oliver Evans]

[Amphibious steam powered carriage and paddle boat designed by Oliver ...

Illus. in: The Boston mechanic and journal of the useful arts and sciences. Boston : G.W. Light & Co., 1834 July, p. 17. Published in: The tradition of technology : Landmarks of Western technology ... / Leonar... More

Dusting plane hedge-hopping after spraying swath on beanfield. These planes can spray 100 acres an hour, can usually fly one or two hours unless it rains or storms in an average day. The usual traveling "dusting circus" has at least three or four planes, its own pilots, mechanics and elementary repair shop. Seabrook Farms, between Bridgeton and Vineland, New Jersey

Dusting plane hedge-hopping after spraying swath on beanfield. These p...

Public domain photograph related to Circus, free to use, no copyright restrictions image - Picryl description

Feeding an SNC advanced training plane its essential supply of gasoline is done by sailor mechanics at the Naval Air Base, Corpus Christi, Texas

Feeding an SNC advanced training plane its essential supply of gasolin...

Photograph shows standing on the wing is Floyd Helphrey who came from Iowa to join the Navy early in the year. At right is W. Gardner of Illinois who used to be a crane operator.

Interior of the tool and ie building, Ford River Rouge plant, Dearborn Michigan. Here radically new techniques of mass production have been developed and put in use. Machine tools and dies produced at this plant themselves make mass production easier and more rapid in other factories throughout the country. The building covers 8 1/2 acres; employs 4,500 skilled workers; equipped with 3 million dollars worth of machinery. Many machinists are being trained for the Navy, here by mechanics, tool and die makers

Interior of the tool and ie building, Ford River Rouge plant, Dearborn...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

In the tool and die building at the River Rouge plant, vast facilities are being used to train personnel for the U.S. Navy. Here naval cadets are being instructed in lathe operation by the skilled instructor- mechanics

In the tool and die building at the River Rouge plant, vast facilities...

Public domain photograph of factory building, free to use, no copyright restrictions image - Picryl description

Naval air base, Corpus Christi, Texas. Lined up and looking eager for flight are Navy fighter palnes at the Navy Air Base in Corpus Christi, Texas. These biplane F3F's are constantly reconditioned by sailor mechanics at the base

Naval air base, Corpus Christi, Texas. Lined up and looking eager for ...

Picryl description: Public domain image of a biplane aircraft, pilot, aviator, free to use, no copyright restrictions.

Training. Work Projects Administration (WPA) vocational school. This small cabin plane is being completely overhauled by students in an airplane mechanics class at a WPA training school in the District of Columbia. The overhaul job includes replacing fabric on the fuselage, wings, and tail surfaces. When these students finish the course, they will be qualified for jobs as expert airplane maintenance men

Training. Work Projects Administration (WPA) vocational school. This s...

Public domain photograph of car garage, repair shop, 20th century, free to use, no copyright restrictions image - Picryl description

High school Victory Corps. It's a serious business. Future airplane mechanics, these students at Washington High School, Los Angeles, California

High school Victory Corps. It's a serious business. Future airplane me...

Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description

Naval air base, Corpus Christi, Texas. Flight's over--an N3N training plane is safe on the dollie and pilot and instructor go back to the hangar. After fulfilling their service schedules, planes at the Corpus Christi, Texas, naval air base are completely reconditioned by civil service mechanics attached to the base

Naval air base, Corpus Christi, Texas. Flight's over--an N3N training ...

Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.

Training. Work Projects Administration (WPA) vocational school. The complicated mechanism of an airplane engine will be no mystery to these District of Columbia students when they finish their WPA vocational training course in airplane mechanics. Upon completion of training, they will be qualified for jobs in some phase of the construction or maintenance of the United Nation's air armada

Training. Work Projects Administration (WPA) vocational school. The co...

Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less

Conversion. From garage to defense workshop. Carell supervising the set-up of a lathe with turret attachment in the basement of his home where he does subcontracting on war work. His day shift consists of the expert mechanics

Conversion. From garage to defense workshop. Carell supervising the se...

Public domain photograph of New Jersey in 1930s, free to use, no copyright restrictions image - Picryl description

Production. A-31 ("Vengeance") dive bombers. Motor tune-up. Flight service mechanics are shown here warming up the motor of a Vultee "Vengeance" dive bomber prior to the ship's take-off for a test flight at the Nashville Division of Vultee Aircraft Inc. The "Vengeance" (A-31) was originally designed for the French. It was later adopted by the RAF (Royal Air Force) and still later by the U.S. Army Air Forces. It is a single-engine, low-wing plane, carrying a crew of two men and having six machine guns of varying calibers

Production. A-31 ("Vengeance") dive bombers. Motor tune-up. Flight ser...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Warner Robins, Georgia. Air Service Command, Robins Field. Mechanics removing the cowling of one of the engines of a B-24 bomber

Warner Robins, Georgia. Air Service Command, Robins Field. Mechanics r...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Pittsburgh, Pennsylvania. Mechanics working on a bus parked outside the Greyhound garage because there is no room inside

Pittsburgh, Pennsylvania. Mechanics working on a bus parked outside th...

Picryl description: Public domain photograph of migrant workers, 1930s car, Great Depression, Dust Bowl refugees, poverty, economic conditions, free to use, no copyright restrictions.

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west side between A Street & Third Street, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Mechanics Shop, Waterfront Avenue, west si...

Significance: Building 271 is a contributing element of the Mare Island Historic District. Building 271 is highly significant as the earliest of the "curtain-wall" industrial buildings at Mare Island, a distin... More

Mechanics Exchange Hotel, 116-122 I Street, Sacramento, Sacramento County, CA

Mechanics Exchange Hotel, 116-122 I Street, Sacramento, Sacramento Cou...

Significance: Built by Henry Treichler, the hotel served those connected with iron works, mills, and railroad activities north of I Street. Survey number: HABS CA-178 Building/structure dates: 1860 Initial Co... More

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, Lackawanna County, PA

Miners & Mechanics Bank Building, 13 North Main Street, Carbondale, La...

Significance: This design includes many different orders of Classic Revival Architecture. All these elements combine to present a strong design, suitable for the image a financial institution would want to exhi... More

Reg't. Michigan Engineers & Mechanics destroying R.R. track in Atlanta. Ruins of the car shed to right hand

Reg't. Michigan Engineers & Mechanics destroying R.R. track in Atlanta...

Photograph shows a group of soldiers pulling apart the railroad track at the Atlanta depot. Forms part of: Visual materials from the papers of O.M. Poe.

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford County, CT

Mechanics Savings Bank Building, 80 Pearl Street, Hartford, Hartford C...

Significance: The Mechanics Savings Bank building is a fine example of the Neo Classical Revival style of architecture. Its colossal granite fluted Doric columns in antis and the entablature they support with ... More

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