Barus Harmonic Synthesizer
date: label: date made
content: ca 1898
notes: label: Description (Brief)
content: Barus Harmonic Synthesizer. Designed by physicist Carl Barus (1856-1935) to study various wave forms. Barus wrote that this wave machine was, "sufficiently comprehensive in design to embody in a single mechanism the types of harmonic motion met with in acoustics, light, electricity and elsewhere, with a clear bearing on their kinematic analysis. ... I [believe] the apparatus to be more complete than any similar machine which I have seen, and having, after considerable experience, become assured of its usefulness in class work." Carl Barus, "The Objective Presentation of Harmonic Motion," Science, New Series, 9, no. 220 (17 March 1899): 385-405.
label: Description (Brief)
content: This unit was disassembled for shipping and is stored in sections: one main section with the discs (13.75" h x 33" w x 24" d) and a bundle of connecting rods (8" h x 48" w x 13" d). There is a frame with indicating tines for showing compressional effects with the bundle. The latter is noted as "with coil springs and wires on ends. "y" and perpendicular".
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
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content: Mechanical Integrators and Analyzers
creditLine: label: Credit Line
content: from the Museum of Science and Industry (Chicago)
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.330649
label: catalog number
content: 330649
label: accession number
content: 271855
label: collector/donor number
content: 30.670
objectType: label: Object Name
content: demonstration model