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Figure 66. Negretti and Zambra thermometer recorder. This instrument wasdeveloped in 1920 and was actuated by the principle of expansion and contraction of mercury in a Bourdon tube. Above: recording device. Bottom: sensorand conducting unit. (Image credit: Oceanographic Museum of Monaco | Y. Berard)
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
Thermometers and Other Temperature Measuring Equipment
Keywords
Oceanography