Search Results
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Mojonnier Apparatus
- 1922
Moisture and milk testers for determining fat and total solids in milk and dairy products according to the Mojonnier process.
- Creator Of Work Williams, Brown & Earle
- Subject Physical instruments, Milk--Testing, Laboratories--Equipment and supplies, Milkfat--Testing
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Original site of National Technical Laboratories
- 1930s
This garage was the first location of the National Inking Appliance Company, founded by the National Postal Meter Company in 1934 to manufacture the new, nonclogging inking device invented by Arnold O. Beckman. This…
- Subject Buildings, Garages, Beckman Instruments, Inc.
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Portrait of William McPherson (1864-1951)
- Circa 1928
Portrait of William McPherson (1864-1951). McPherson was a professor of chemistry and dean of the graduate school at Ohio State University. He served as chairman of the American Chemical Society from 1895 to 1928, as…
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Portrait of Herbert Freundlich (1880-1941)
- 1920s – circa
Portrait of Herbert Freundlich (1880-1941). A student of Wilhelm Ostwald, Freundlich received his doctorate from the University of Leipzig in 1903 following his dissertation on the precipitation (coagulation) of colloid…
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Certificate of Registration for Donald F. Othmer as a Professional Engineer in the Commonwealth of Pennsylvania
- 1939-Sep-19
Issued by the Department of Public Instruction, State Registration Board for Professional Engineers.
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Type 650-A Impedance Bridge
- After 1933
Rectangular wooden case with sloped top; black instrument panel on top surface; instrument panel features six connection posts for the external generator, a galvanometer meter under glass, nine black plastic knobs, four…
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Arnold O. Beckman in a clown costume at a college fraternity party
- Circa 1920
Arnold O. Beckman at a Delta Upsilon party during his time at the University of Illinois, 1918-1923.
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began…
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Cuban postage stamp commemorating Pierre and Marie Curie's discovery of radium
- 1938
Stamp printed by the Republic of Cuba, depicting Marie and Pierre Curie. The 40th anniversary of the discovery of radium by Marie and Pierre Curie was commemorated in France in 1938 with the release of a semipostal…
- Artist La Nézière, Joseph de
- Engraver Piel, Jules
- Subject Women in science, Curie, Marie, 1867-1934, Women physicists, Cuba, Women in physics, Women scientists, Chemists, International Union against Cancer, Women chemists, Curie, Pierre, 1859-1906, Science on postage stamps, Nobel Prize winners, Women in chemistry, Physicists, Postage stamps, Commemorative postage stamps, Women Nobel Prize winners
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Postage stamp from Monaco commemorating Pierre and Marie Curie
- 1938
The 40th anniversary of the discovery of radium by Marie and Pierre Curie was commemorated in France in 1938 with the release of a semipostal stamp bearing a 50-cent surtax to benefit the International Union Against…
- Engraver Degorce, Georges-Léo
- Subject Women in science, Curie, Marie, 1867-1934, Women physicists, Monaco, Women in physics, Women scientists, Chemists, International Union against Cancer, Women chemists, Curie, Pierre, 1859-1906, Science on postage stamps, Nobel Prize winners, Women in chemistry, Physicists, Postage stamps, Commemorative postage stamps, Women Nobel Prize winners
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Belgian postage stamp commemorating Trappist monks at Orval
- Circa 1939
Depicts two Trappist monks from Orval Abbey, presumably brewing Trappist beer.
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Semipostal stamp from Luxembourg to support the International Relief Fund for Intellectuals
- 1935
Depicts a scientist in a laboratory setting looking through a microscope.
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Aerial view of the Dow Chemical Company
- 1936 – 1937
Aerial view of the Dow Chemical Company plants and facilities located in Midland, Michigan. This photograph was taken by H. H. Harris, President of the General Alloys Company of Boston and amateur photographer who…
- Creator Of Work Dow Chemical Company
- Photographer Harris, H.H.
- Subject Aerial views, Industries, Dow Chemical Company, Aerial photographs
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Physical Testing Laboratory View #3
- 1930s – circa
General view of the Physical Testing Laboratory located in the Educational Buildings at the Dow Chemical Company facility in Midland, Michigan.
- Creator Of Work Dow Chemical Company
- Subject Laboratories, Dow Chemical Company, Scientific apparatus and instruments
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Letter from I. H. Lyons to Arnold O. Beckman
- 1935-Jun-03
Letter to Arnold O. Beckman about the early stages of planning marketing and distribution for the pH meter. The National Postal Meter Company on the letterhead was one of Arnold Beckman's first employers, when they…
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Letter from I. H. Lyons to Arnold O. Beckman
- 1935-Aug-23
Lyons writes to Beckman during Beckman's travels around the United States to market his new "acidimeter." This letter in particular mentions the orders rolling in following the first advertisement for the pH meter and…
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Letter from the Braun Corporation to Adolph Coors
- 1935-Aug-14
From an unknown author at the Braun Corporation (and carbon copied to its president, J.A. Hartley). The author wants Aldoph Coors (the brewing magnate) to meet Arnold O. Beckman during Beckman's trip to promote his new…
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Letter from Arnold O. Beckman to J. J. Murdock
- 1935-Aug-30
This letter from Arnold Beckman was sent during his 1935 trip around the United States to promote and secure distributors for his new pH meter (or "acidimeter") in 1935. Beckman reports on the enthusiasm of both…