Sound Pendulum
date: label: date made
content: around 1900
notes: label: Description
content: This consists of a graduated arc, a pendulum with a hard rubber bob, and a block of ebony, so designed that the intensity of the sound produced, when the bob hits the block, is proportional to the height of fall of the bob. The first device of this sort was made by Alfred W. Volkmann (1800-1877), a German physiologist.
label: Description
content: Ref: C. H. Stoelting Co., <i>Psychological and Physiological Apparatus and Supplies</i> (Chicago, 1930), p. 37.
label: Location
content: Currently not on view
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Cornell University Department of Psychology
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.300427.007
label: catalog number
content: 300427.007
label: accession number
content: 300427
objectType: label: Object Name
content: Pendulum, Sound
label: Object Name
content: sound pendulum
label: Object Name
content: memory drum
label: Other Terms
content: Pendulum, Sound; Diagnostic Medicine
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: cloth (overall material)
label: Physical Description
content: ebony (overall material)
label: Measurements
content: overall: 39.5 cm x 14.8 cm x 52.6 cm; 15 9/16 in x 5 13/16 in x 20 11/16 in