sunshine recorder
notes: label: Description
content: Sunshine recorders determine the number of hours the sun is visible each day, and the time of that visibility. A differential recorder operates on the principle of the differential heating between a blackened bulb and a clear bulb of a differential thermometer. The form was suggested by Delos Taft Maring of the U.S. Weather Bureau and improved by Charles F. Marvin, also of the Weather Bureau.
label: Description
content: The inscription on this example reads "Sunshine Recorder, Type ML20, Signal Corps, U.S. Army, Serial 15, Order 110429, Date 5-5-23."
label: Description
content: Ref: D. T. Maring, “An Improved Sunshine Recorder,” Monthly Weather Review 125 (1897): 485-490.
label: Description
content: C. F. Marvin, “Instructions for the Care and Management of Electrical Sunshine Recorders,” U.S. Weather Bureau Circular G (Washington, D.C., 1901), pp. 14-.
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.308176.01
label: accession number
content: 70852
label: catalog number
content: 308176.01
objectType: label: Object Name
content: sunshine recorder
physicalDescription: label: Measurements
content: overall: 9 5/8 in x 7 3/4 in x 3 1/2 in; 24.4475 cm x 19.685 cm x 8.89 cm