Regnault Chronograph
notes: label: Description
content: Henri Victor Regnault (1810-1878) was a French physicist who, together with Rudolph Koenig, measured the velocity of sound in the sewers of Paris. He also designed a tuning-fork chronograph that registered the reception of a sound pulse with an electric signal at the beginning of the pulse and again at the end. This example, which came from the Smithsonian Institution Instrument Room, was probably made by Koenig. Joseph Henry, the physicist who served as founding Secretary of the Smithsonian, probably bought it for the Institution.
label: Description
content: Ref: Rudolph Koenig, <i>Catalogue des Appareils d’Accoustique</i> (Paris, 1889), pp. 78-79.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314597
label: catalog number
content: 314597
label: accession number
content: 205890
objectType: label: Object Name
content: acoustic apparatus
physicalDescription: label: Measurements
content: overall: 19 1/2 in x 20 in x 15 1/4 in; 49.53 cm x 50.8 cm x 38.735 cm