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NOAA Photo Library Image - theb3775

Thomson piano wire sounding machine as mounted on USS TUSCARORA. This machine was invented by Sir William Thomson, a.k.a. Lord Kelvin. Made use of heavy weight and piano wire - line paid out until weight hit bottom . This machine revolutionized deepsea sounding. Variations would be used for over 50 years

Image ID: theb3775, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photo Date: 1873
Credit: NOAA Central Library

Category: Charting/Soundings/Bathymetry/Mechanical/

High Resolution Photo Available

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Last Updated:
November 10, 2017