Polished Stainless Galileo Thermometer

The Galileo Thermometer is a unique functional thermometer based on Galileo Galilei's originally designs from the 16th century. The spheres within the glass will rise and fall according to changes in the temperature due to the changing density of the fluid within. You read the lowest of the floating temperature tags to determine the correct temperature. * Liquid volume expansion thermometer. * Sealed glass chamber holds 4 glass balls and is encapsulated in brass cylinder. * Available in a variety of finishes. * Optional mounting hook. * Diameter: 1-5/8" (41 mm). Height: 5-3/4" (146 mm). * Wt: 1 lb. (454 g).