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[Diagram of Gilbert's terella, or earth model, a spherical magnet used to show earth's magnetic qualities; with decorated initial C and surrounding text]

Illus. and text in: De Magnete / William Gilbert. London : Excudebat P. Short, 1600. Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of Congress, 1987, p. 277.

[Apparatus used to convert electrical energy into mechanical rotation, the basis of dynamos, using bar magnet, beaker of mercury, and current carrying wire] / A.A., del. ; J.B. Taylor, sc.

Illus. in: Experimental researches in electricity / Michael Faraday. London : R. and J.E. Taylor, 1839-1855, v. 2, pl. 4. Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of More

[Electromagnetism described and illustrated (with horseshoe magnet, rod, and bell) on a page from the Annual report by the first secretary of the Smithsonian Institution]

Illus. in: Annual report of the Board of Regents of the Smithsonian Institution...for the year 1857. Washington : The Institution, 1858, p. 105. Published in: The tradition of technology : Landmarks of Western More

[Science classroom scene - 7 or 8 year-olds studying the magnet, 8th Division, Washington, D.C.]

Title and other information transcribed from caption card. Frances Benjamin Johnston Collection (Library of Congress). In album: "8th Division."

The magnet / Keppler. - Public domain drawing

Cartoon showing John Pierpont Morgan, with a large magnet in shape of money sign, drawing in paintings, suits of armor, and other objects. Illus. in: Puck, 1911 June 21, centerfold.

The magnet / Keppler. - Political cartoon, public domain image

Illustration shows a J.P. Morgan lying at the edge of America, with an American flag in his top hat, holding a large magnet in the shape of a dollar sign with which he is attracting precious objects of historic More

The pull of the Monroe magnet / Kep.

Illustration shows Uncle Sam, on the right, sitting with legs outstretched forming a magnet labeled "United States Protectorates", which he is using to draw Central and South American countries, represented by More

Robe et fond de robe - Musee de la Mode de la Ville de Paris

Robe et son fond de robe. Robe à col pèlerine, petites manches kimono, jupe droite, froncée sur les hanches et fendue devant. Fond de robe à bretelles. Griffe - Griffe tissée sur le fond de robe : "T. Magnet 11 More

[Setting all magnet screws] - Public domain image. Dry plate negative.

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

Surahammars Bruk. Elektrisk magnet på skrotgården 1928.

Magnet with 9-inch poles and 11 inches in diameter. 15,000 gauss across a gap slightly over 1 inch, half million volt-electron hydrogen moleule ions were produced. Crocker Lab 1931-1932. Morgue 1944-29 (P-3) [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Radio arc transmitter. Not part of magnet as assembled at University of California (UC) Berkeley taken June 3, 1931. Morgue 1944-79 (P-2) copy negative from original print courtesy of Norma Sleeman [photographer unknown]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

27-inch cyclotron with magnet,1932. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Bill Stamper with 27-inch cyclotron tank #1 and magnet, 1932. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

27-inch cyclotron tank #1 and magnet,1932. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

27-inch cyclotron with magnet, built in 1934. Morgue 1944-33 (P-3) [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

37-inch magnet water tanks in the Old Radiation Laboratory, print taken in 1937. Principal Investigator/Project: Analog Conversion Project

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Trim tillbehör. Magnet 1937. Bolinders Mekaniska Verkstads AB

Trim tillbehör. Magnet 1937. Public domain photograph related to electric power generation, electric motors, in Sweden, free to use, no copyright restrictions image - Picryl description

Mrs. Jackson Laslett (right) sitting on top of of 60" cyclotron magnet yoke in,1938. Cooksey 8-9 [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Early Radiation Laboratory staff framed by the magnet for the 60-inch cyclotron in 1938. Front row, left to right: John H. Lawrence, Robert Serber, Franz N.D. Kurie, Raymond T. Birge, Ernest O. Lawrence, Donald Cooksey, Arthur H. Snell, Luis W. Alvarezz, Philip H. Abelson. Second row: John Backus, Wilfred B. Mann, Paul C. Aebersold, Edwin M. McMillan, Ernest Lyman, Martin D. Kamen, D.C. Kalbfell, W.W. Salisbury. Back row: Alex S. Langsdorf, Jr., Sam Simmons, Joseph G. Hamilton, David H. Sloan, J. Robert Oppenheimer, William Brobeck, Robert Cornog, Robert R. Wilson, Eugene Viez, J.J. Livingood. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Unidentified individuals at 60-inch cyclotron magnet yoke. Cooksey 8-2, March 1, 1938. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Unidentified workmen at 60-inch cyclotron magnet yoke. Cooksey 8-42, March 1, 1938. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Unidentified workmen at 60-inch cyclotron magnet yoke. Cooksey 8-3, March 1, 1938. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest O. Lawrence and workers sitting inside and on top of of 60" cyclotron magnet yoke in August 1938. Originally from film #8, page 2, frame #6. See also B&W negative Cooksey-789. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest O. Lawrence and workers sitting inside and on top of of 60" cyclotron magnet yoke in August 1938. Originally from film #8, page 2, frame #7. See also B&W negative Cooksey-789. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Back into production go these carloads of scrap metal, Allegheny Ludlum Steel[e] Corp., Brackenridge, Pennsylvania The melting of alloy steels for defense work requires that steel mill scrapyards such as this be constantly filled. The overhead magnet deposits the scrap in a loader which carries it to the open-hearth furnace. About 50 per cent scrap steel is used in open-hearth production

Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.

60-inch cyclotron magnet at right with associated equipment. Cooksey 13-40, Feburary 6, 1939. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron magnet. Cooksey 14-28, Feburary 15, 1939. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Insertion of Dees (D's) into 60-inch magnet. Cooksey 31-9, April 1, 1939. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

60-inch cyclotron with Milton White and his reflection. August 23, 1939. Cooksey 44. Cooksey note: Looking from above at the "east" side, one sees, below the union of the two dee support tanks, the high speed (approximately 5000 L/sec) oil diffusion pump developed in this laboratory. Professor Milton G. White is by the magnet. Some of the equipment with which Alvarez and Cornog discovered helium three is behind White. Paint cans full of water are piled in front of the control room to reduce the radiation at that point. [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Steel manufacture, Allegheny-Ludlum. Back into production go these carloads of scrap metal. The melting of alloy steels for defense work requires that steel mill scrapyards such as this be constantly filled. The overhead magnet deposits the scrap in a loader which carries it to the open hearth furnace. About fifty percent of scrap steel is used in open hearth production

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. Scrap from areas near the steel mill is delivered by motor truck. The melting of alloy steel for defense production necessitates constant delivery of scrap iron and steel to the mills. The overhead magnet will deposit the steel in a loader, which then carries it to an open hearth or electric furnace. In the neighborhood of forty percent of all steel produced comes from scrap metal

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

Steel manufacture, Allegheny-Ludlum. Back into production go these carloads of scrap metal. The melting of alloy steels for defense work requires that steel mill scrapyards such as this be constantly filled. The overhead magnet deposits the scrap in a loader which carries it to the open hearth furnace. About fifty percent of scrap steel is used in open hearth production

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

Steel manufacture. Back into production go these carloads of scrap metal. The melting of alloy steels for defense work requires that steel mill scrapyards such as this be constantly filled. The overhead magnet deposits the scrap in a loader which carries it to the open hearth furnace. About fifty percent of scrap steel is used in open hearth production

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

75-ton 37-inch deuteron beam out. The Federal Telegraph magnet shown with new 37-inch pole tips. A beam of deuterons of about 6.3 meV. is seen coming from the target chamber, taken February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

1933 - Standing before 74 tons of iron and copper are Professor M. Stanley Livingston (left) now of the Massachusetts Institute of Technology and Professor Ernest Orlando Lawrence. Magnet development has continued to expanded more nearly to its capacity, producing the new nuclear particles known as neutrons in quantities sufficient for actual human therapy. Negative envelope dated February 1, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Yale professor Charlton Dows Cooksey (brother of Donald Cooksey) with model 184-inch magnet test setup. Note the common shaft driving coils in both models, taken May 22, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site excavation with Robert Cornog, taken October 2, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site copper delivery, taken October 2, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. First copper delivery, taken October 2, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site excavation, taken October 5, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site excavation, taken October 5, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet 5 ft. thick subfoundation being poured (east end of excavation pit), taken October 8, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. Naomi Weiss with 100,000 pounds of copper, taken October 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation reinforcing steel bed, taken October 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation forms, taken October 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation forms, taken October 10, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation with half of the concrete poured, taken October 11, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Edwin McMillan on 184-inch magnet foundation forms. Taken October 16, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Bill Brobeck with184-inch magnet copper sample from Phelps Dodge Copper Products Corporation, taken October 17, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation forms. Pouring concrete into the east wall, taken October 17, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation. Pouring concrete into the base, taken October 18, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Brode's magnet, taken October 21, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ernest Orlando Lawrence standing on 184-inch magnet foundation west rail, taken October 28, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Edwin McMillan with184-inch magnet "power line," taken October 28, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet rail, with Edwin McMillan, taken October 28, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Workman in discussion with Bob Wicker and Wallace B. Reynolds at 184-inch magnet site, taken October 31, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. Left to right: Bill Farley, Paul Aebersold, Bill Brobeck, John Backus, Robert Cornog, taken November 12, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. Wallace B. Reynolds, Henry Bigge (Bigge Drayage Co., Oakland), and Bill Brobeck, taken November 14, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet foundation, Wilson bracing "H" beam support, taken November 19, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. Moving first plate into position, taken November 25, 1940. Photo includes onlookers. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. First plate being lowered into place, taken November 25, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. First plate resting on the rails while the rear of the truck is being supported, taken November 25, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Cutting machine at the184-inch magnet site, taken November 25, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. First plate being lowered into place, taken November 25, 1940. Photo includes onlookers. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch magnet site. Bill Brobeck on first installed plates, taken November 27, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch cyclotron magnet site. Paul Aebersold and Donald Cooksey standing on rail, taken November 28, 1940. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

View of base of magnet (north side) of 184-inch cyclotron, taken May 17, 1941. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Grounds and Buildings Committee of the Regents of the University of California in front of the184-inch cyclotron magnet pole inspecting progress after having accepted the Medical Physics (Donner Lab) site. Left to right: Ernest Orlando Lawrence, Mortimer Fleishhacker, Robert G. Sproul, (Reverend Monsiginor ) Charles Adolph Ramm, Sidney M. Ehrman, and Edward Augustus Dickson, taken May 21, 1941. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch cyclotron exterior building framework, with magnet, taken October 8, 1941. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch cyclotron magnet. View from crane girder, taken December 3, 1941. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Paul Aebersold standing in magnet gap at 184-inch cyclotron construction site, taken December 17, 1941. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Ben Bow chromite mine, Stillwater County, Montana. Metallic articles are removed from chrome ore by a magnet at the end of conveyor belt

Public domain photograph of a machine part, motor, equipment, free to use, no copyright restrictions image - Picryl description

Salvage. Scrap for steel mills. A worker guides the magnet which unloads steel scrap from open freight cars to the waiting charging boxes in a Chicago steel mill. Drawn by an engine, these boxes will be brought directly to the furnace room, where they will be processed into steel for guns and ships

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

Production. Milling machines and machine castings. Masters of the open yard, the railroad crane man and his helper use a large electronic magnet to stack, sort and deliver scrap iron and steel to the overhead yard crane in the foundry

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

This Norton cutter-grinder which had been specially adapted to grind cams on the motor shaft for the electric dry shaver which this New England plant normally produces, has now been converted to grind permanent magnet rotors for machine tool motors. The conversion was accomplished with new jigs and fixtures and slight changes in the head. This is a tricky job well suited to the skill of this plant's workers. The metal is alnico and the octagonal shape consists of surfaces which are arcs drawn from the center of the piece. Schick Inc., Stamford, Connecticut

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

Various ship-building related objects IV756

IV756 Public domain photograph, Sweden, free to use, no copyright restrictions image - Picryl description

Production. Milling machines and machine castings. In this pile of scrap cast iron there are old machine tool beds, foundry flasks, pipe, boilers, automobile engine blocks -- almost anything that a magnet will pick up. Location: large Midwest machine tool foundry

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Various ship-building related objects IV755

IV755 Public domain photograph, Sweden, free to use, no copyright restrictions image - Picryl description

This Norton cutter-grinder which had been specially adapted to grind cams on the motor shaft for the electric dry shaver which this New England plant normally produces, has now been converted to grind permanent magnet rotors for machine tool motors. The conversion was accomplished with new jigs and fixtures and slight changes in the head. This is a tricky job well suited to the skill of this plant's workers. The metal is alnico and the octagonal shape consists of surfaces which are arcs drawn from the center of the piece. Schick Inc., Stamford, Connecticut

Public domain photograph of electric motor, free to use, no copyright restrictions image - Picryl description

Anaconda smelter, Montana. Anaconda Copper Mining Company. Ore on conveyor belt just before reaching the Symons crusher; the magnet at end of belt removes metallic particles which have dropped into the ore during the mining process

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Salvage. Scrap metal. The magnet loader of a large Southern junkyard operates continuously to keep our steel mills supplied with the scrap metal needed to make the tools of war. Location: in a large New Orleans yard

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

Washington, D.C. Scrap salvage campaign, Victory Program. Picking up iron scraps from floor with a magnet in warehouse of a wholesale junk company

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Washington, D.C. Scrap salvage campaign, Victory Program. Picking up pieces of iron scrap from the floor with a magnet in wholesale junk dealer's warehouse

Public domain photograph of construction site, excavation works, free to use, no copyright restrictions image - Picryl description

Salvage. Scrap metal. The magnet loader of a large Southern junkyard operates continuously to keep our steel mills supplied with scrap metal needed to make the tools of war. Location: a large New Orleans yard

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

Encasing magnet windings for the184-inch cyclotron, taken May 1942. Principal Investigator/Project: Analog Conversion Project [Photographer: Donald Cooksey]

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Looking down on field scanner equipment referred to as "Muriel." Formerly confidential. Photograph taken August 12, 1943. Magnet-108

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00779.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Magnetic field scanner, 184-inch cyclotron. Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Formerly confidential. Photograph taken June 9, 1943. Magnet-57

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00722.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Iron filing shot (showing X-Beta pattern), residual fluid only. Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Formerly confidential. Photograph taken April 3, 1943. Magnet-27

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00711.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

184-inch cyclotron magnet model, Henry Hofacker's welding shop. Photograph taken October 21, 1943. Magnet-148

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00791.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

20 gap X-Beta. Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Formerly confidential. Photograph taken April 3, 1943. Magnet-28

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00712.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Coil winding mechanism, 184-inch cyclotron. Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Formerly confidential. Photograph taken June 4, 1943. Magnet-55

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00721.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Alpha-6 iron filing pattern in "Powell's penthouse." Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Photograph taken November 17, 1943. Magnet-167

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00808.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Yoke of alpha-6 magnet. Formerly confidential. Photograph taken September 24, 1943. Magnet-139

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00786.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Film puller with posters reminding people using equipment of importance of secrecy during wartime. Includes caricatures of Adolph Hitler. Wilson Powell group. Formerly confidential. Photograph taken July 27, 1943. Magnet-82

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00739.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

New magnets. Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Formerly confidential. Photograph taken May 14, 1943. Magnet-47

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00716.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Field scanner equipment referred to as "Muriel." Formerly confidential. Photograph taken July 26, 1943. Magnet-80

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00738.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Complete coil and coil assembly of Powell's magnet. Formerly restricted. Photograph taken November 27, 1943. Magnet-181

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00811.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Field scanner equipment referred to as "Muriel." Formerly confidential. Photograph taken June 26, 1943. Magnet-62

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00725.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

Stray field iron filing pattern in "Powell's penthouse." Associated with Wilson Marcy Powell, Professor of Physics, UC Berkeley, Lawrence Berkeley Laboratory, Lawrence Livermore Laboratory, and Oak Ridge National Laboratory; Guggenheim Fellowship, Manhattan Project, 184-inch cyclotron, head of magnet group. Photograph taken November 13, 1943. Magnet-154

Digital Preservation File Name and Format: 434-LB-5-XBD201208-00793.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab