Search Results
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Apparatus at U.S. Department of Agriculture facility
- 1950s
General view of an unidentified apparatus at a U.S. Department of Agriculture facility. A radioactive materials sign and protective glass panel are visible to the right of the apparatus. The U.S.D.A. commonly used…
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Interior view of fertilizer apparatus
- 1950s
Close-up view of the interior of an apparatus likely used for the manufacture and/or testing of fertilizer at an unidentified U.S. Department of Agriculture facility.
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Drillability apparatus components
- 1950s
Component parts, likely of a drillability apparatus, used at an unidentified U.S. Department of Agriculture facility.
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Geiger counter in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist William A. Jackson using a Gieger counter to examine a package at an unidentified U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and…
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Kiln in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist George Wieczorek removing a vessel from a Pereco kiln at an unidentified U.S. Department of Agriculture facility.
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Radioactive material containers
- 1950s – circa
General view of assorted containers and components used to house radioactive materials. The jar labels include space to record the isotope, amount, and date. These containers are believed to have been used as part of…
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Radioactive material handling at U.S. Department of Agriculture facility
- 1950s – circa
Close-up view of the handling of radioactive material at an U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and testing, including the study of…
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Radioactive material handling at U.S. Department of Agriculture facility
- 1950s – circa
George Wieczorek (right) and two unidentified chemists handling radioactive material at an U.S. Department of Agriculture facility. The U.S.D.A. commonly used radioactive material for a variety of research and testing,…
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Geiger counter in use at U.S. Department of Agriculture facility
- 1950s – circa
View of chemist George Wieczorek (right) using a Geiger counter to measure ionizing radiation in an unknown substance, likely soil or fertilizer, at an unidentified U.S. Department of Agriculture facility.
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4 items
Beckman Instruments Helipot Division, Newport Beach plant
- 1950s
A series of photographs depicting the future site of the Helipot Division's Newport Beach plant and the building's appearance in the mid-1950s.
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2 items
Students' Potentiometer
- 1950s
Potentiometers are used to measure electromotive force (emf) by balancing it with a known emf. The concept was first developed in 1841 by J. C. Poggendorff and improved throughout the 19th century by Latimer Clark and…
- Manufacturer Leeds and Northrup Company
- Subject Potentiometer, Leeds and Northrup Company
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3 items
Gordon Research Conference on Nuclear Chemistry, 1952
- 1952-Jun-23
Group photograph of attendees at the Gordon Research Conference on Nuclear Chemistry held in New Hampton, New Hampshire, June 1952. Included with the photograph are a hand-drawn key and name list identifying the…
- Creator Of Work Gordon Research Conferences
- Subject Gordon Research Conferences, Portraits, Group, Congresses and conventions
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Postcard and French postage stamp commemorating Louis Pasteur
- After 1885 – before 1953
Postcard image is a reproduction of Finnish painter Albert Edelfelt's famed portrait "Pasteur Dans Son Laboratoire" [Pasteur In His Laboratory]. The portrait depicts Pasteur in his laboratory at the rue d'Ulm,…
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ORLON teaches new fall fashions to keep their figure in the wash!
- 1950s
Color print magazine advertisement for Orlon, a Dow trademarked acrylic fiber. The advertisement details the major properties of Orlon: "Orlon is resistant to sunlight and atmospheric gases, which makes it ideal for…
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Beckman Model G pH Meter with open lid and compartment
- Circa 1952
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting “acidimeter” with its…
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Beckman IR-2A Infrared Spectrophotometer
- Circa 1952
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…
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Helipot Potentiometers and Dials
- 1950 – 1969
Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…
- Subject Potentiometer, Beckman Instruments, Inc.
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Beckman DIP Resistor Networks
- 1950 – 1969
Resistor networks combine several resistors into a single component. Dual in-line package (DIP) networks are rectangular in shape, with two parallel rows of pins for through-hole mounting to a circuit board.
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Nurse in maternity ward, using Beckman Model D oxygen analyzer to monitor an infant in an incubator
- 1950s
Los Angeles County General Hospital nurse Mary Finlay is monitoring the oxygen levels of a prematurely born infant in an incubator, to provide just the right oxygen mixture. Too little oxygen has obvious repercussions,…
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Industrial Instruments Type DR51D Decade Resistance
- 1950 – 1969
In 1965, Beckman Instruments acquired Industrial Instruments, Inc. The Cedar Grove, New Jersey-based company manufactured solution conductivity analyzers and other industrial instruments.
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Beckman Model AB-3X1 Auto Bridge
- 1950 – 1969
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Beckman Component Taping Device
- 1950 – 1969
- Photographer Commercial Photographic Company
- Subject Scientific apparatus and instruments, Beckman Instruments, Inc.
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Beckman Model AB-3-5 Auto Bridge
- 1950 – 1969
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Beckman Model PS-1-GP Schering Bridge
- 1950 – 1969
A Schering Bridge is an AC bridge circuit used for measuring the insulating properties of electrical cables and other equipment.