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![Figure 36 ship4041.jpg Figure 36](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4041.jpg?itok=u0jH06zV)
Description
Figure 36. Current meter invented by Jacob Peter Jacobsen in 1909. Left: viewof the assembled unit. Right from top to bottom: bubble levels; sample bucket.This instrument was used by Jacobsen for many years. He first tested it in theGrand Belt from the vessel THOR in 1909. (Image credit: Oceanographic Museum of Monaco | Y. Berard)