Search Results
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Beckman Model LART Lightning Arrester Test Set
- 1950 – 1969
This system tests electric surge arresters, which protect transformers from power surges, like those caused by a lightning strike.
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Beckman Model AB-4 Auto Bridge
- 1950 – 1969
- Photographer Commercial Photographic Company
- Subject Scientific apparatus and instruments, Beckman Instruments, Inc.
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Beckman Model NV-1, Type DP-3 Decade Potentiometer
- 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…
- Photographer Commercial Photographic Company
- Subject Potentiometer, Beckman Instruments, Inc.
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Double flask for demonstrating anaerobic fermentation
- 1939 – 1967 (Date span attributed to photograph)
Photograph of a double flask used by French biologist, microbiologist, and chemist Louis Pasteur (1822-1895) to demonstrate anaerobic fermentation, as displayed at the Pasteur Institute in Paris. Per notations…
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Beckman Model G Glass Electrode pH Meter
- 1950
Self contained pH meter with wooden exterior; hinged top door opens to reveal meter face and inlaid paper instructions for use; the dial is calibrated from pH 0 to pH 13 in .1 pH divisions; porcelain enamel lined…
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Helipot Division – Miscellaneous products
- 1950s
The Helipot Corporation was founded during World War II by Arnold O. Beckman of Beckman Instruments (at that time still National Technical Laboratories) to keep up with the demand for Beckman's reliable dial, also…
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Portrait of John Van Nostrand Dorr (1872-1962)
- 1950s
Portrait of John Van Nostrand Dorr (1872-1962). In partnership with John Lundberg and A.D. Wilson, Van Nostrand Dorr owned the Lundberg, Dorr, & Wilson gold & silver mining operation in Terry, South Dakota. In 1916, he…
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Portrait of Henry Bohn Haas (1902-1987)
- 1950s – circa
Portrait of Henry Bohn Haas (1902-1987), a specialist in organic chemistry who is credited with the discovery of gas chromatography. Haas was born in Huntington, Ohio and received his doctorate from Ohio State in 1925.…
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-Oct-24
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, in which Mulliken expresses skepticism with some of Shull's recent results.
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-Oct-23
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning Shull's membership into the Division of Chemical Physics of the American Physical Society.
- Addressee Shull, Harrison
- Author Mulliken, Robert Sanderson
- Subject Shull, Harrison, Mulliken, Robert Sanderson, Chemists, American Physical Society, Nobel Prize winners, Physicists
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Letter from Harrison Shull to Robert S. Mulliken, 1950
- 1950-May-01
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning edits of one of Shull's manuscripts.
- Addressee Mulliken, Robert Sanderson
- Author Shull, Harrison
- Subject Shull, Harrison, Yerkes Observatory, Mulliken, Robert Sanderson, Chemists, Wisconsin, Nobel Prize winners, Physicists
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-Oct-02
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists. Includes detailed discussion of some of Shull's recent scientific results.
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-May-09
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists.
- Addressee Shull, Harrison
- Author Mulliken, Robert Sanderson
- Subject Shull, Harrison, Mulliken, Robert Sanderson, Chemists, Nobel Prize winners, Physicists
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-Apr-21
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists.
- Addressee Shull, Harrison
- Author Mulliken, Robert Sanderson
- Subject Shull, Harrison, Mulliken, Robert Sanderson, Astrophysical journal, Chemists, Nobel Prize winners, Physicists
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Letter from Harrison Shull to Robert S. Mulliken, 1950
- 1950-Jan-20
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, discussing recent results and publications by Shull.
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Letter from Robert S. Mulliken to Harrison Shull, 1950
- 1950-Jan-17
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, where Mulliken expresses puzzlement over recent abstracts on wave functions published in the Physics Abstracts by unnamed German and…
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Evelyn Photoelectric Colorimeter
- 1950 – 1959
Wooden box with metal instrument panel on top; four small black rubber feet on bottom; front of wooden box contains printed instructions and folds down to show inside of instrument; rectangular wooden area attached to…
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Sunderman Model RCM14B1 Conductivity Bridge
- Circa 1950
Hardwood case with a leather handle and metal hinges and clasp; aluminium interior instrument panel has black finish; instructions on paper are inside the lid; the instrument panel features four black plastic knobs, two…
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Arnold O. Beckman with Bill Hayman, Harry Bauer, and Bill Freeze
- 1950
This photograph was taken at a trade show, where the Beckman Instruments' advertising campaign took the form of a political campaign, with the slogan "Put Beckman in Control." The slogan was a reference to Beckman…
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Beckman Sugar Colorimeter
- 1950
The result of joint research and development undertaken by Beckman Instruments and six sugar industry laboratories, this instrument was designed to quantitatively measure the whiteness of sugar.
