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NOAA Photo Library Image - ship4358

Figure 62. Breguet-Saxton metallic thermometer first invented about 1817 by the instrument maker Louis Abraham Breguet. The first of this type was composed of platinum, silver, and gold with the silver placed in the center. Differential expansion of the metals provided the temperature measurement. In 1848, Joseph Saxton made a similar one for the U. S. Coast Survey but it was inaccurate.

Image ID: ship4358, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/

High Resolution Photo Available

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Last Updated:
November 10, 2017