Crova's Disk
name: label: maker
content: Max Kohl
notes: label: Description
content: Crova’s Disk, a device for demonstrating wave motion, was designed by Andre Prosper Crova (1833-1907), a professor of physics in France. Rudolph Koenig showed an example at the international exhibition held in Paris in 1867. This example came from the Department of Physics at the University of Alabama. The “Max Kohl” inscription on the frame indicates a date before 1908 when the firm began trading as Max Kohl A.G.
label: Description
content: Ref: Rudolph Koenig, <i>Catalogue des Appareils d’Acoustique</i> (Paris, 1889), p. 97.
label: Description
content: Max Kohl, <i>Physical Apparatus</i> (Chemnitz, [1912]), p. 416. 
label: Location
content: Currently not on view
place: label: place made
content: Germany: Saxony, Chemnitz
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.325956
label: accession number
content: 317854
label: catalog number
content: 325956
objectType: label: Object Name
content: Crova's Disk
physicalDescription: label: Measurements
content: box overall: 8 in x 4 in x 7 1/2 in; 20.32 cm x 10.16 cm x 19.05 cm
label: Measurements
content: overall; apparatus: 8 in x 7 11/16 in x 4 1/2 in; 20.32 cm x 19.52625 cm x 11.43 cm
label: Measurements
content: overall; case: 7 1/4 in x 4 1/4 in x 8 in; 18.415 cm x 10.795 cm x 20.32 cm