Search Results
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2 items
Oil-Immersion Microscope
- Circa 1946
A: Microscope
Ernst Leitz oil-immersion microscope; instrument rests on wishbone-shaped base with a single beam extending from the center before splitting into two sections: an arm supporting the telescope and…- Manufacturer Ernst Leitz (Firm)
- Subject Microscopes, Ernst Leitz (Firm)
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Cary Model 11MS Recording Spectrophotometer
- 1947 (Introduced)
- Manufacturer Applied Physics Corporation
- Subject Varian, Inc., Spectrophotometer, Applied Physics Corporation
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3 items
Beckman Model E Ultracentrifuge Rotor
- 1950s
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…
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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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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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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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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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3 items
Gilbert "Cloud Chamber"
- 1951
The Gilbert "Cloud Chamber" is part of the Gilbert U-238 Atomic Energy Laboratory, which was a toy laboratory set marketed towards children. The cloud chamber allowed the user to view alpha particles traveling 12,000…
- Manufacturer A.C. Gilbert Company
- Subject A.C. Gilbert Company, Nuclear energy, Electricity, Electrochemistry, Cloud chamber
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Thomas-Van Slyke Manometric Blood Gas Apparatus
- Circa 1953
The Manometric Blood Gas Apparatus was a revision on the original, fairly simple volumetric glass apparatus designed by Dr. Van Slyke in around 1917. The instrument liberated and isolated "the desired gas contained in a…
- Manufacturer Arthur H. Thomas Company
- Subject Blood gases, Medicine, Clinical chemistry
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5 items
Secondary Ion Mass Spectrometer (SIMS) Tube
- 1954
This spectrometer tube was designed and built at RCA laboratories, Princeton, NJ in 1954 by Dr. Richard E. Honig (1917-2001) for pioneering work in the development of Secondary Ion Mass Spectrometry (SIMS) for solid…
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2 items
Series Sixty student microscope
- 1955 – 1960
American Optical Corporation Sixty student model monocular microscope features American Optical Spencer objective lenses.
American Optical Corporation was a successor to the Spencer Lens Company, founded by Charles…
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2 items
Electron Capture Detector
- 1957
The electron capture detector (ECD) was invented by Dr. James Lovelock (1919-2022) in 1957. ECDs detect molecules in gas via electron capture ionization and are used in gas chromatography to detect traces of chemicals…
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6 items
Graphic Periodic Selector of the Elements
- 1959
The Graphic Periodic Selector of the Elements visually demonstrates the periodicity of the elements. A single setting of the slide will simultaneously illustrate the arrangement of electrons around the nucleus of the…
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3 items
Dropsonde
- 1960s
Dropsonde instruments are cylindrical metal devices containing pressure, temperature, and humidity sensors to capture atmospheric profiles and thermodynamic data. The instruments are designed to be dropped from an…
- Creator Of Work Bendix Corporation
- Subject Radiosondes, Dropwindsondes, Weather, Weather forecasting, Storms, Meteorology
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Galvanometer
- 1960
Six volt galvanometer in a rectangular wooden case with rubber feet. A brass lever at the top of the case provides coarse zero adjustment; two black plastic and metal knobs on the right side of the case provide fine…
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Portable Hydrogen Ion Potentiometer
- Circa 1960
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
Metrohm E 1009 Spectrocolorimeter
- 1963
A spectrocolorimeter is a form of spectrophotometer that can calculate tristimulus values, or the the light intensity of primary color values in a sample.
- Manufacturer Metrohm AG
- Subject Colorimetry, Spectrophotometry, Colors, Spectrum analysis
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Crystal puller
- Circa 1964 – 1968
Used to create silicon ingots for use in the semiconductor industry, this crystal puller consists of two main parts, the furnace and the puller: the furnace is cylindrical and located at the bottom of the instrument, it…
- Creator Of Work Lorenzini, Robert E.
- Manufacturer Elmat
- Subject Silicon, Semiconductors
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3 items
Hewlett-Packard Model 35 Calculator with case
- 1972
Developed in 1972, the HP-35 was Hewlett Packard's first pocket calculator and the first pocket calculator ever to have transcendental functions. Twenty HP engineers spent two years and approximately $1 million…
- Manufacturer Hewlett-Packard Company
- Subject Pocket calculators, Calculators, Hewlett-Packard Company
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8 items
Mass Spectrometer
- 1972
Components of a mass spectrometer as designed by Alfred Otto Carl Nier (1911-1994). Mass spectrometers are analytical instruments used to measure the mass-to-charge ratio of one or more molecules in a sample. The…
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Distillation still
- Before 2007
Distillation is a method of separating chemical substances based on differences in their volatilities in a boiling liquid mixture. A distilled beverage is a liquid meant for consumption containing ethyl alcohol…
- Subject Distillation apparatus, Distillation
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2 items
Reproduction of Voltaic Pile
- 2018
Modern reproduction of the first electric battery invented by Alessandro Volta in 1800. Base and top are wooden. Between the base and top rests a stack or pile of 46 copper-zinc cells. Electrodes used to tranfer the…
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2 items
Bausch & Lomb Duboscq Type Colorimeter
- Undated
A: Duboscq type colorimeter, biological, with electric illuminator. Hollow black cast iron base attached to a sloping cast iron upright supporting the reader, prisms, and sample cups; reader detaches with two metal…
- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Colorimetry--Instruments, Colorimetry
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2 items
Bausch & Lomb Duboscq Type Colorimeter
- Undated
Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…
- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Colorimetry--Instruments, Colorimetry
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2 items
Bausch & Lomb Spectroscope
- Undated
Spectroscope is in the style of the original Bunsen-Kirchhoff design. Triangular glass prism sits on a round, brass dias and is held in place by a metal arm attached to the dias; prism is coated in black paint with only…
- Manufacturer Bausch & Lomb Optical Company
- Subject Spectrometer, Bausch & Lomb Optical Company, Spectrum analysis, Spectroscope
