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Galileo Kiss Thermometer
|It's a must-have for the desk of any science enthusiast. The Galileo thermometer |
is based on a thermoscope invented by Galileo Galilei in the early 1600s. The thermometer
consists of a sealed glass tube that is filled with water and a number
of floating spheres. The glass spheres are filled with a colored liquid and float
up and down according to the changes in temperature. When the temperature rises,
the spheres will sink and inversely; when the temperature falls, the spheres
will rise due to the changes in the specific gravity of liquids. You always read
the lowest of the floating temperature tags to determine the correct temperature.
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