Search Results | Hagley Digital Archives

Title: Hermann von Helmholtz, German physicist
Date(s): 1855/1865, 1855, 1865
Contributor(s): Litchfield, Carter (collector), Lewkowitsch, J. (Julius), 1857-1913 (former owner)
Collection ID: Carter Litchfield photographs and ephemera on the history of fatty materials (Accession 2007.227)
Hagley ID: 2270355
Collection: Carter Litchfield history of fatty materials collections

Title: Jeff Yorker interview
Date(s): 2020-01-16
Contributor(s): Yorker, Jeffrey, 1954 (interviewee), Hologic (Firm) (associated name), Spohn, Benjamin (interviewer)
Description: In this interview, Jeff Yorker talks about his career with DuPont, AGFA, and Hologic and his work in the diagnostic medical business. Yorker discusses the many projects he worked with including the development of Selenia, a digital mammography system. Yorker walks through the process of research and development for each of these projects including, patenting and work with the FDA. He also spends a large part of the interview comparing his work with DuPont and Hologic.
Collection ID: Hologic Medical Imaging oral histories (Accession 2020.201)
Hagley ID: 2020201_Yorker_Jeff_20200116
Collection: Hologic Digital Mammography oral histories

Title: Jeff Yorker interview [transcript]
Date(s): 2020-01-16
Contributor(s): Yorker, Jeffrey, 1954 (interviewee), Hologic (Firm) (associated name), Spohn, Benjamin (interviewer)
Description: In this interview, Jeff Yorker talks about his career with DuPont, AGFA, and Hologic and his work in the diagnostic medical business. Yorker discusses the many projects he worked with including the development of Selenia, a digital mammography system. Yorker walks through the process of research and development for each of these projects including, patenting and work with the FDA. He also spends a large part of the interview comparing his work with DuPont and Hologic.
Collection ID: Hologic Medical Imaging oral histories (Accession 2020.201)
Hagley ID: 2020201_Yorker_Jeff_20200116_transcript
Collection: Hologic Digital Mammography oral histories

Title: Award of modern pioneers medals, Samuel C. Collins (1965)
Date(s): 1965
Contributor(s): National Association of Manufacturers (U.S.) (originator), Collins, Samuel C., 1898-1984 (depicted), Fluor, J. Robert, 1921- (depicted), Waldorf-Astoria Hotel (New York, N.Y.) (event place)
Collection ID: National Association of Manufacturers photographs and audiovisual materials (Accession 1973.418)
Hagley ID: 1973418_005_25_004
Collection: National Association of Manufacturers

Title: Research directors
Date(s): 1955
Contributor(s): E.I. du Pont de Nemours & Company (originator)
Description: Research directors of the DuPont Company guide the research work of the department. Here in a Rayon laboratory physicist Jack Ballou (in shirtsleeves) explains to them, the use of unique 'iron lung' in basic studies on fabric comfort. His audience with department affiliations are, left to right: Lawton Burrows (explosives), Max Goebel (Grasselli), George Graves (F. and F.), John Beekley (Polychemicals); Winfield Heckert (rayon); Thomas Chilton (engineering); Frank Signaigo (Photo Products);...
Show moreResearch directors of the DuPont Company guide the research work of the department. Here in a Rayon laboratory physicist Jack Ballou (in shirtsleeves) explains to them, the use of unique 'iron lung' in basic studies on fabric comfort. His audience with department affiliations are, left to right: Lawton Burrows (explosives), Max Goebel (Grasselli), George Graves (F. and F.), John Beekley (Polychemicals); Winfield Heckert (rayon); Thomas Chilton (engineering); Frank Signaigo (Photo Products); John Brill (Film); John Foulger (Service), Paul Austin (Electrochemicals), James Booge (Pigments); Merlin Brubaker (Chemical), and Harold Elley (Organic Chemicals).
Show less
Collection ID: DuPont Company Product Information photographs (Accession 1972.341)
Hagley ID: 1972341_3882
Collection: DuPont Product Information photographs

Title: Measuring magnetic properties
Date(s): 1955
Contributor(s): E.I. du Pont de Nemours & Company (originator), Stewart, Willard S., 1915-2003 (photographer)
Description: A physicist in DuPont's Central Research Department measures the magnetic properties of new class of antimonides discovered in a fundamental research program- chromium manganese antimonides, a new material with unique on and off magnetic characteristics. At the company's Experimental Station the Central Research Department carries out exploratory and fundamental programs in chemistry, physics and biology for the benefit of the whole company. Such research information is exchanged with other...
Show moreA physicist in DuPont's Central Research Department measures the magnetic properties of new class of antimonides discovered in a fundamental research program- chromium manganese antimonides, a new material with unique on and off magnetic characteristics. At the company's Experimental Station the Central Research Department carries out exploratory and fundamental programs in chemistry, physics and biology for the benefit of the whole company. Such research information is exchanged with other departments so that maximum advantage may be taken of findings made in various programs. Coupled with fundamental research at the Experimental Station is work aimed at the application of scientific knowledge for the development of new products and new uses.
Show less
Collection ID: DuPont Company Product Information photographs (Accession 1972.341)
Hagley ID: 1972341_3216
Collection: DuPont Product Information photographs

Title: Working with chromium manganese antimonides
Date(s): 1955
Contributor(s): E.I. du Pont de Nemours & Company (originator)
Description: A metallic material with unique on and off magnetic characteristics has been discovered by DuPont scientists doing fundamental research on magnetic substances. Above a specific temperature the compound chromium manganese antimonides, is strongly magnetic but becomes non magnetic as the temperature drops. In the picture, Dr. Thomas J. Swoboda, one of the discoverers of the new material, observes a chart which plots the change of magnetic properties of a sample subject to temperature changes in...
Show moreA metallic material with unique on and off magnetic characteristics has been discovered by DuPont scientists doing fundamental research on magnetic substances. Above a specific temperature the compound chromium manganese antimonides, is strongly magnetic but becomes non magnetic as the temperature drops. In the picture, Dr. Thomas J. Swoboda, one of the discoverers of the new material, observes a chart which plots the change of magnetic properties of a sample subject to temperature changes in the sensitive magnetic temperature balance on the right. The chart shows the sharp magnetic peak which occurs at a particular temperature dependent on the amount of chromium in the compound. To the right of the peak the material is paramagnetic, while at low temperature, to the left, the sample has undergone an unusual transition to an anti-ferromagnetic state.
Show less
Collection ID: DuPont Company Product Information photographs (Accession 1972.341)
Hagley ID: 1972341_3217
Collection: DuPont Product Information photographs

Title: Scientific color matching
Date(s): 1955
Contributor(s): E.I. du Pont de Nemours & Company (originator)
Description: Physicist A. C. Webber studies a new model of a three dimensional transparent color system which makes it possible to identify colors by number. The model is made out of DuPont's Lucite acrylic resin. All colors that the eye can distinguish can be specified uniquely by use of the system. Many of the colors are illustrated by the plastic disks on the model.
Collection ID: DuPont Company Product Information photographs (Accession 1972.341)
Hagley ID: 1972341_2787
Collection: DuPont Product Information photographs

Title: Automotive electronics, vehicle multiplex system
Date(s): 1983
Contributor(s): Radio Corporation of America (associated name), RCA Laboratories (associated name), Radio Corporation of America. News and Information Department (originator), Radio Corporation of America. David Sarnoff Research Center, Princeton, N.J. (former owner)
Description: Photographs of George R. Briggs, RCA Laboratories technical staff, demonstrating his patented vehicle multiplex system. The system simplified wiring connections for automotive headlights, horns, turn signals, and windshield wipers.
Collection ID: RCA News and Information Department photographs (Accession 2464.68)
Hagley ID: AVD_246468_07_13
Collection: David Sarnoff Library