Doheny Memorial Library, Los Angeles, CA 90089-0189 Public Domain. Release under the CC BY Attribution license--http://creativecommons.org/licenses/by/3.0/--Credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digit Send requests to address or e-mail given USC Libraries Special Collections specol@usc.edu
Description
Photograph of a man standing on a section of the vacuum tube with which Dr. Albert Michelson measured the velocity of light, Irvine Ranch, ca.1931. The long pipe or 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 or frames above the surrounding scrub where sheets of unused materials lie. A man can be seen standing in profile on top of the tube in the foreground at center, looking straight ahead (i.e. to the picture's right). He is wearing a light-colored shirt, dark stained pants, scuffed work boots, and a cap. A corrugated metal shed can be seen in the foreground at left, while a dirt roadway runs parallel to the pipe at left. Several more buildings are visible in the background at center including one where two people stand on the dirt road beside it.
Type
image
Format
2 photographs : negative, photoprint, b&w 18 x 13 cm., 26 x 21 cm. negatives (photographic) photographic prints photographs
Michelson, Albert Abraham, 1852-1931 Michelson, Albert Abraham, Dr Velocity of light Vacuum-tubes Jewish scientists Men Laboratories Research facilities
Time Period
circa 1931
Place
California Irvine Ranch Orange USA
Source
California Historical Society [Contributing entity]
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