Gyroscope
date: label: date made
content: 1867
name: label: maker
content: Ritchie, Edward S.
label: designer
content: Dolbear, Amos E.
notes: label: Description
content: Amos E. Dolbear (1837-1910) was an American physicist and inventor who devised an electrical gyroscope in 1861. This example of his improved version was made in 1867 by E. S. Ritchie, an instrument maker in Boston. The donor (Dolbear’s son) stated that it was "the first successful electric motor driven gyroscope ever built to demonstrate the earth's rotation."
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Gift of Mr. Benjamin L. Dolbear
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.323349
label: catalog number
content: 323349
label: accession number
content: 249235
objectType: label: Object Name
content: gyroscope
physicalDescription: label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: 12 in x 5 in; 30.48 cm x 12.7 cm
label: Measurements
content: overall: 10 1/2 in x 8 3/4 in x 5 1/4 in; 26.67 cm x 22.225 cm x 13.335 cm