Heliostat

Description
A heliostat throws sunlight where it might be used for photography or scientific observations. This example is based on the form devised by Leon Foucault in 1862. It has a rectangular mirror measuring 8.5 x 2.75 inches, a latitude arc, a declination arc, a clock drive, and a circular base with three leveling screws.
Location
Currently not on view
Measurements
overall: 22 in; 55.88 cm
ID Number
PH.315660
catalog number
315660
accession number
217544
Credit Line
U.S. Military Academy
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Optics
Data Source
National Museum of American History, Kenneth E. Behring Center

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