This is 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 coloured liquid and float up and down
according to changes in temperature. When
the temperature rises, the spheres will sink
and inversely when the temperature falls
the spheres will rise due to changes in the
specific gravity of liquids. Read the lowest of
the floating temperature tags to determine
the correct temperature. Height approx.
280mm.