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NOAA Photo Library Image - ship4060

Figure 53. A bottom float for studying currents in closed basins of small extent used by the Copenhagen Hydrographic Laboratory. Left:float. Right: message. This float was first conceived by George P. Bidder with the aid of the Marine Biological Association of Plymouth, U. K., and first used from the HUXLEY in 1904 when 390 were launched in the North Sea.

Image ID: ship4060, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: D. Mille
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available

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Last Updated:
June 10, 2016