Gravity Pendulum

Description
This is probably one of the invariable Kater-type pendulums that Charles Sanders Peirce used in 1873 and 1874 when, working under the auspices of the U.S. Coast and Geodetic Survey, he measured the force of gravity in the Hoosac Tunnel near North Adams, at Northampton, and at Cambridge, Massachusetts. The Survey transferred it to the Smithsonian in 1959.
Location
Currently not on view
Object Name
gravity pendulum
ID Number
PH*316502
accession number
225703
catalog number
316502
subject
Measuring & Mapping
U.S. Coast & Geodetic Survey
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center

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