Search Results
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Storage piles for experimental blast furnace
- 1930-Mar-21
General view of storage piles of raw material, including greensand, leucite, coke, and limestone, used in the experimental blast furnace at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located…
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Combination hot plate and shaker
- 1930-Jan-08
View of a combination hot plate and shaker used to investigate potash at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. Potash salts are an important component in the…
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Absorption chamber for nitrogen oxides
- 1930-Jan-08
Absorption chamber for nitrogen oxides used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. In this photograph, the chamber's casing has been removed to show the…
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Apparatus for the analysis of vapors at the Fixed Nitrogen Research Laboratory
- 1930-Jan-08
Apparatus used to analyze vapors emitted from the reaction of liquid carbon dioxide and liquid ammonia at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. In the…
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Equipment for treating fertilizer raw materials with nitrogen oxides
- 1930-Jan-08
Equipment used to treat raw materials for the production of fertilizer with nitrogen oxides at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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General view of apparatus for determining total and partial vapor pressures
- 1930-Jan-08
General view of apparatus use to determine total and partial vapor pressures at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. The apparatus was commonly used to…
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Apparatus for determining vapor pressure, with view of equilibrium chamber and isoteniscope
- 1930-Jan-08
Apparatus used to determine vapor pressure of vapor emitted from the reaction of liquid carbon dioxide and liquid ammonia at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington,…
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Apparatus for studying the thermal reaction of acetylene and nitrogen
- 1930-Jan-08
An apparatus used to study the thermal reaction of acetylene and nitrogen at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen Research Laboratory…
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Apparatus for studying the thermal reactions in gases (with screen)
- 1930-Jan-08
An apparatus used to study thermal reactions in gases at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. A protective screen partially obscures the front of the…
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Large-capacity constant temperature bath
- 1930-May-28
General view of a large-capacity constant temperature bath with a removable glass front used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen…
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Apparatus for determining solubility of gases in liquids
- 1930-May-28
General view of an apparatus used to determine the solubility of gases in liquids at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. Visible in the bath of the…
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Autoclave and still at Urea Plant
- 1930-Jan-08
General view of an autoclave and still at the Fixed Nitrogen Research Laboratory's Urea Plant. Urea is a water-soluble powder form of carbonic acid frequently used as a fertilizer and feed supplement.
The Fixed…
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Carbon dioxide drier, compressor, liquifier, and liquid storage
- 1930-Jan-08
General view of a carbon dioxide drier, compressor, liquifier, and liquid storage used at the Fixed Nitrogen Research Laboratory's Urea Plant. Urea is a water-soluble powder form of carbonic acid frequently used as a…
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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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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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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…