- A heliostat throws sunlight where it might be used for photography or scientific observations. This unsigned example consists of a rectangular mirror with rounded corners that is mounted in a metal frame and supported on a tri-leg base. It has no clockwork, but it does have tangent screws for turning the mirror around its vertical and horizontal axes. Several manufacturers offered “laboratory heliostats” of this general design.
- Ref. Société Genevoise, Illustrated Price List of Physical and Mechanical Instruments (Geneva, 1900), item 2120, pp. 85-86.
- Max Kohl, Price List No. 50, Vol. 1 (Chemnitz, n.d.), pp. 34-35.
- Currently not on view
- Object Name
- date made
- ca 1900
- Duboscq, Jules
- overall: 23 1/2 in; 59.69 cm
- mirror: 14 in x 8 in; 35.56 cm x 20.32 cm
- overall: 17 7/16 in x 11 in x 14 in; 44.29125 cm x 27.94 cm x 35.56 cm
- ID Number
- accession number
- catalog number
- Credit Line
- U.S. Military Academy
- Science & Scientific Instruments
- Data Source
- National Museum of American History
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