Heliostat
notes: label: Description
content: 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.
label: Location
content: Currently not on view
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Science & Mathematics
label: See more items in
content: Optics
creditLine: label: Credit Line
content: U.S. Military Academy
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.315660
label: catalog number
content: 315660
label: accession number
content: 217544
objectType: label: Object Name
content: heliostat
physicalDescription: label: Measurements
content: overall: 22 in; 55.88 cm
label: Measurements
content: overall: 14 7/8 in x 7 3/8 in x 19 3/8 in; 37.7825 cm x 18.7325 cm x 49.2125 cm