Search Results

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  Scientific apparatus and instruments, Electronics

  Weston Galvanometer

  • Undated

  Rectangular wooden box; brown leather handle attached to top with metal fasteners; front has a steel lock screwed to it; lock is stamped with manufacturer; four hard black rubber feet on bottom; top attached with two…

  • Manufacturer Weston Electrical Instrument Corporation
  • Subject Galvanometer, Measuring instruments, Weston Electrical Instrument Corporation, Electricity, Magnetism, Electric machines
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  Photographs

  Beckman Model VS Ammeter

  • Undated

  An ammeter is used to measure the electric current flowing through the circuit. This instrument is distinct from those which measure voltage, like a voltmeter.

  • Subject Electric currents, Scientific apparatus and instruments, Ammeters, Beckman Instruments, Inc.
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  Photographs

  Beckman Model W Industrial pH Meter

  • Undated

  The industrial model pH meters had features designed specifically for industrial (as opposed to laboratory) environments, like the Model W's rubber gaskets to prevent corrosive gases or dust from entering the…

  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Woman using a Beckman Model KF-3 Aquameter

  • Undated

  Used for performing titrations with a Karl Fischer reagent.

  • Subject Karl Fischer technique, Scientific apparatus and instruments, Volumetric analysis, Beckman Instruments, Inc.
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  Photographs

  Paul Paulis with unidentified men and Beckman instruments

  • Undated

  • Subject Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Presentation of Beckman pH Meters

  • Undated

  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Automatic Air Dryer

  • Undated

  This accessory for Beckman's line of infrared spectrophotometers is designed to remove all moisture from the air passing through the spectrophotometer, which otherwise could interfere with its readings.

  • Subject Humidity, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Model J pH Meter

  • Undated

  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 instrument kicked off…

  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Electromate pH Meter

  • Undated

  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 instrument kicked off…

  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Model RM-10 Apnea Alarm

  • Undated

  • Subject Sleep apnea syndromes, Medical instruments and apparatus, Beckman Instruments, Inc.
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  Photographs

  Beckman Zeromatic II pH Meter

  • Undated

  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 instrument kicked off…

  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman/Spinco Model 153 Microtitrator

  • Undated

  A microtitrator is an instrument designed to titrate very small volumes of liquid. This model is shown with a Microfuge centrifuge and other accessories.

  • Subject Beckman Instruments, Inc. Spinco Division, Scientific apparatus and instruments, Volumetric analysis, Centrifuges, Beckman Instruments, Inc.
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  Photographs

  Roadrunner II Mobile Exhibit

  • Undated

  A traveling exhibit of Beckman Instruments' biomedical instruments products.

  • Subject Scientific apparatus and instruments, Road Runner (Fictitious character), Scientific apparatus and instruments--Marketing, Medical instruments and apparatus, Beckman Instruments, Inc.
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  Photographs

  Men posing with a Beckman Auto Exhaust Analyzer

  • Undated

  Four unidentified men flank a Beckman HC/CO tester. This instrument detects pollutants in the exhaust from vehicles with combustion engines.

  Beckman Instruments, Inc. became interested in measuring, controlling, and…

  • Subject Carbon monoxide--Measurement, Scientific apparatus and instruments, Motor vehicles--Pollution control devices, Automobiles--Motors--Exhaust gas--Measurement, Beckman Instruments, Inc., Air--Pollution--Measurement
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  Photographs

  Beckman GC-2 Gas Chromatograph

  • Undated

  Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…

  • Subject Scientific apparatus and instruments, Gas chromatography, Gas chromatography--Instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Radioimmunoassay Kit

  • Undated

  Radioimmunoassay is an assay technique used to measure concentrations of antigens by use of antibodies. This test often requires making antigens radioactive and is frequently used to measure hormones in blood.

  • Subject Radioimmunoassay, Beckman Instruments, Inc.
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  Photographs

  Unidentified Beckman Instruments apparatus

  • Undated

  This instrument includes an oxygen analyzer, but its end product and purpose is unclear.

  • Subject Scientific apparatus and instruments, Oxygen--Analysis, Beckman Instruments, Inc.
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  Photographs

  Beckman Model L4 Ultracentrifuge

  • Undated

  Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

  • Subject Scientific apparatus and instruments, Centrifuges, Beckman Instruments, Inc.
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  Photographs

  Man loading a Beckman Model L4 Ultracentrifuge

  • Undated

  Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

  • Subject Scientific apparatus and instruments, Centrifuges, Beckman Instruments, Inc.
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  Postage stamps

  Postage stamp commemorating German porcelain, German Democratic Republic

  • Undated

  Stamp from the series on the Leipzig Spring Trade Fair in 1950. Commemorates first porcelain on the trade fair in 1710.

  • Artist Gruner, Erich
  • Engraver Wolf, Karl
  • Subject Postage stamps, Germany (East), Trade shows, Commemorative postage stamps, Science on postage stamps, Porcelain, German
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  Postage stamps

  Postage stamp commemorating Thai rubber industry

  • Undated

  Stamp depicts tapped rubber trees.

  • Subject Postage stamps, Rubber industry and trade, Commemorative postage stamps, Science on postage stamps, Thailand
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  Postage stamps

  Soviet postage stamp commemorating the Conference on the Peaceful Uses of Atomic Energy, 1958

  • Undated

  Stamp printed in USSR shows bomb, globe, model of an atom, Sputniks, and a ship.

  • Subject Postage stamps, Nuclear energy--Government policy, Soviet Union, Nuclear energy, Science on postage stamps, International Conference on the Peaceful Uses of Atomic Energy, Congresses and conventions, Commemorative postage stamps, Nuclear nonproliferation
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  Postage stamps

  Panamanian postage stamp commemorating Alfred Nobel and the Nobel Prize

  • Undated

  Stamp depicts Nobel Prize medal and a dove with an olive branch in its mouth.

  • Artist Mosdossy, Imre von, 1904-1995
  • Creator Of Work Thomas De La Rue & Company
  • Subject Nobel Prizes--Medals, Postage stamps, Nobel, Alfred Bernhard, 1833-1896, Commemorative postage stamps, Nobel Prizes, Science on postage stamps, Panama
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  Postage stamps

  Soviet postage stamp commemorating Frédéric Joliot-Curie

  • Undated

  Stamp features a portrait of Frédéric Joliot-Curie.

  • Subject Postage stamps, Soviet Union, Science on postage stamps, Nobel Prize winners, Joliot-Curie, Frédéric, Physicists, Commemorative postage stamps
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  Postage stamps

  Ghanaian postage stamp commemorating Albert Einstein

  • Undated

  UNESCO stamp depicting Albert Einstein and his formula for mass-energy equivalence.

  • Subject Postage stamps, Ghana, Unesco, Special relativity (Physics), Commemorative postage stamps, Science on postage stamps, Einstein, Albert, 1879-1955, Nobel Prize winners, Physicists