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![Figure 63 ship4359.jpg Figure 63](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4359.jpg?itok=i5l_lsBD)
Description
Figure 63. Clement metallic thermometer, first mentioned in 1839 by the clock-maker of Rochefort, Leandre Clement. This thermometer functioned by thedifferential contraction or expansion of two strips of differing metals. Theywere soldered together in a spiral form. Left is the total assembly while above right is the indicating dial. (Image credit: Oceanographic Museum of Monaco | Y. Berard)