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Figure 59 Picture

Figure 59

Figure 59. Hooke sounder devised by Robert Hooke, curator of experiments of the British Royal Society, also took up Cardinal Cusanus’s idea. Like the preceding similar devices, the depth measured was obtained by comparison with the time required for the float to ascend from a known depth. This instrument was designed in 1663 and tested in 5 to 6 meters water depth.

Photo Category: Oceanography - Historical instruments

Author: Y. Berard/Oceanographic Museum of Monaco/ NOAA

License: Public Domain Mark 1.0 (Public domain)
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18th October 2015
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