Heliostat

<< >>
Description
A heliostat throws sunlight where it might be used for photography or scientific observations. This simple and inexpensive example was designed in the mid-1870s by Rueul Keith, a mathematician who worked for the U.S. Naval Observatory. It was made by Edward Kubel, a German mechanic who arrived in Washington, D.C., in 1849, and went to work making and mending instruments needed by such agencies as the U.S. Coast Survey, the U.S. Geological Survey, and the Army Medical Museum. It was made for Samuel Pierpont Langley, the third Secretary of the Smithsonian Institution, and used in the Smithsonian Astrophysical Observatory. A tag reads: “EDWARD KUBEL / MATH. INST. MAKER / WASHINGTON, D.C.”
Ref: D. J. Warner, “Keith’s American Heliostat,” Rittenhouse 10 (1996): 58-64.
Location
Currently not on view
date made
late 19th century
maker
Kubel, Edward
place made
United States: District of Columbia
Measurements
overall: 24.1 cm x 14 cm x 28 cm; 9 1/2 in x 5 1/2 in x 11 in
overall: 13 1/8 in x 11 3/4 in x 5 3/8 in; 33.3375 cm x 29.845 cm x 13.6525 cm
ID Number
PH.314879
accession number
211531
catalog number
314879
Credit Line
Smithsonian Astrophysical Observatory
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Optics
Astronomy
Data Source
National Museum of American History, Kenneth E. Behring Center

Comments

Add a comment about this object