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(201 - 220 of 247)
Ion chamber used by Millikan
Title
Ion chamber used by Millikan
Format
photograph: negative
Description
Used from about 1930 on. See Phys. Rev. 27:235 (1931). In good working condition as of 1/70. Victor Neher described it as a “high pressure ionization chamber” with 30 atmospheric pressure. It was, he said, used more than other instruments by RAM and was sunk in Muir Lake. This instrument is the most valuable of its type. Mfg. CIT Physics Shop.
Apparatus for demonstrating Lissajous’ curves
Title
Apparatus for demonstrating Lissajous’ curves
Format
photograph: negative
Description
This apparatus produces visual representations of vibrations, called Lissajous’ curves, after French physicist Jules Lissajous (1822-1880). Used in CIT freshman physics lab. Mfg: Max Kohl, Chemnitz.
Geiger counters, small
Title
Geiger counters, small
Format
photograph: negative
Description
An assortment of Geiger counters used by Carl Anderson in his 7″ cloud chamber.
Directional compass
Title
Directional compass
Format
photograph: print
Description
Wood-encased Keuffel and Esser directional compass.
Pelikan drafting pen
Title
Pelikan drafting pen
Format
photograph: print
Bausch & Lomb US Navy binoculars
Title
Bausch & Lomb US Navy binoculars
Format
photograph: print
Date
1941
Cloud chamber made by Willy Fowler--2 views
Title
Cloud chamber made by Willy Fowler--2 views
Format
photograph: negative
Description
25″ x 9.5″ x 6″. Shop-made. This cloud chamber came from the office of William A. Fowler. It is believed to have been made by him in the 1930s.
Telescope and scale
Title
Telescope and scale
Format
photograph: negative
Description
Original inventory card identifies the vendor as Ferner and Fulmer. Mfg. in Switzerland by the SOCIETE GENEVOISE.
Microammeter, Volta Meylan d’Arsonval
Title
Microammeter, Volta Meylan d’Arsonval
Format
photograph: negative
Description
Mfg: Gaiffe-Gallot & Pilon, Paris.
Dosimeter, pocket
Title
Dosimeter, pocket
Format
photograph: negative
Description
Device used to detect radiation. This one is similar, but not identical to, the early pocket dosimeter built by C.C. Lauritsen at CIT around 1932. Mfg: Lec.
Winslow strength-computing slide rule
Title
Winslow strength-computing slide rule
Format
photograph: print
Description
Used for solving wooden beam problems. Manufactured by Henry W. Tomlinson.
Rheostats (3)
Title
Rheostats (3)
Format
photograph: negative
Description
On 13″ inscribed: “Central Scientific Company 22.5 Ohm 4.4 Amps”.
Slide rule (B)
Title
Slide rule (B)
Format
photograph: negative
Description
Mfg. Keuffel & Esser Co., NY.
Galvanometer, Paschen
Title
Galvanometer, Paschen
Format
photograph: negative
Description
Serial #45457. Original instructions, test results and inventory cards in file. Purchased Dec. 1921 for Bridge Lab. See exhibit catalog, “Scientific Instruments Ancient and Modern,” for more information. Mfg: Cambridge & Paul Instrument Co.
pH meter, Model M
Title
pH meter, Model M
Format
photograph: print
Date
1936
Description
Industrial model. Serial no. not shown. CIT Division of Chemistry inventory label #2260. Manufacturer: National Technical Laboratories. Very similar to ST-BE-03, but lacks lid and side door as well as hinges and latch. Wood case has been stripped.
Compass with sighting element, brass
Title
Compass with sighting element, brass
Format
photograph: negative
Description
Mfg. Pessler & Sohn, Freiburg/Sachsen.
Truck model for GALCIT 10 ft. wind tunnel
Title
Truck model for GALCIT 10 ft. wind tunnel
Format
photograph: print
Description
The model has been drilled out in numerous locations to enable the measurement of airflow at particular points.
Ion chamber used by Millikan and Bowen
Title
Ion chamber used by Millikan and Bowen
Format
photograph: negative
Description
Smallest cylindrical electroscope. Used in Texas in 1922. Sent up to about 15.5 kilometers by balloon. Clock and photographic drum missing as of 5/20/70. See Phys. Rev. 27:353(1926). Mfg. CIT Physics Shop.
Slide rule
Title
Slide rule
Format
photograph: print
Description
Frederick Post slide rule housed in plastic box.
Compass with pocket string sundial
Title
Compass with pocket string sundial
Format
photograph: negative
Date
1586
Description
Signed and dated. See “Scientific Instruments Ancient and Modern.” Mfg: Ulrich Schniep, Munich, Germany.