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Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 5/28/37

Interferometer tests standard gages for automobile manufacturers. Wash...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 52837

Interferometer tests standard gages for automobile manufacturers. Wash...

A man in a tie is looking through a microscope, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. ... More

[Diagram of interferometer and four mirrors mounted on stone floating in mercury, which disproved existence of luminiferous ether and its role in the transmission of eletromagnetic waves; with surrounding text]

[Diagram of interferometer and four mirrors mounted on stone floating ...

Illus. and text in: On the relative motion of the earth and the luminous aether / Albert A. Michelson and Edward W. Morley. In Philosophical magazine, 5th ser., vol. 24, Dec. 1887, p. 454. Published in: The tra... More