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Naval History and Heritage Command

NH 115379 Heliostat

Heliostat
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Title: Heliostat
Caption: Used by Albert A. Michelson at the US Naval Academy while performing his experiments on the measurement of the speed of light, circa 1879. It is the property of the Armed Forces Institute of Pathology on loan as of 1965 with the Naval Academy Museum, and may be the only extant piece of equipement used by Michelson while at the academy.
Description:
Catalog #: NH 115379
Copyright Owner: Naval History and Heritage Command
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Original Medium: BW Photo
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