Vacuum tube with which Dr. Albert Michelson measured the velocity of light, Pasadena, ca.1930

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Title	Vacuum tube with which Dr. Albert Michelson measured the velocity of light, Pasadena, ca.1930
Description	Photograph of the vacuum tube with which Dr. Albert Michelson measured the velocity of light, Pasadena, ca.1930. The long tube, exactly a mile in length, runs from the foreground at center to the background at right and is supported by a series of wooden cradles. Michelson can be seen standing on top of the tube in the foreground at center, looking to the right. He is wearing a light-colored shirt and a cap. A corrugated metal shed can be seen in the foreground at left, while a narrow trail runs parallel to the tube at left. Several more buildings are visible in the background at center.
Subject (adlf)	research facilities
Subject (lcsh)	Vacuum-tubes Jewish scientists Men
Subject (naf)	Michelson, Albert Abraham, 1852-1931
Geographic subject (city or populated place)	Pasadena
Geographic subject (county)	Los Angeles
Geographic subject (state)	California
Geographic subject (country)	USA
Coverage date	circa 1930
Publisher (of the digital version)	University of Southern California. Libraries
Date created	circa 1930
Type	images
Format (aacr2)	1 photograph : negative, b&w ; 18 x 13 cm.
Format (aat)	negatives (photographic) photographs
Accession number	36429
Call number	CHS-36429
Legacy record ID	chs-m13397
Part of collection	California Historical Society Collection, 1860-1960
Project	USC
Rights	California Historical Society
Access conditions	Send requests to address or e-mail given. Phone (213) 821-2366; fax (213) 740-2343.
Repository name	USC Libraries Special Collections
Repository address	Doheny Memorial Library, Los Angeles, CA 90089-0189
Repository email	specol@usc.edu
Filename	CHS-36429
Full text	V '-^5v1 •aum tube, an exact mile in length, through which Dr. Albert on is making his final testsy to determine the velocity of
Archival file	chs_Volume82/CHS-36429.tiff

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Vacuum tube with which Dr. Albert Michelson measured the velocity of light, Pasadena, ca.1930

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