pl23_ship4037.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4037jpgDescription
Figure 32 (continued). View of helical impeller of Ekman current meter asmodified by Max Marx.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Current Measuring Devices
Keywords
Oceanography
Historical instruments