Acoustic and Solar Circular Slide Rule, 1942

Circular slide rule (4-inch scale) for converting

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Circular slide rule (4-inch scale) for converting
Science Museum Group
© The Board of Trustees of the Science Museum

Circular slide rule (4-inch scale) for converting bathythermograph records to soundwave velocity, by Gilson Slide Rule Co., USA, 1942. Made for Bureau of Ships, US Navy Department, form 13, serial no. 794.

Details

Category:
Oceanography
Object Number:
1980-1441
Materials:
aluminium alloy, steel (metal), nickel plated and plastic (possibly cellulose acetate)
Measurements:
overall: 15 mm 225 mm, .165kg
type:
slide rule and circular slide rule
credit:
Woods Hole Oceanographic Institution