Galileo Thermometers Light Bulb Shape 16cm high

Galileo Thermometers Light Bulb Shape 16cm high

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Invented by Galileo Galilei (1564-1642) The floating globes have a tag showing a temperature. Each globe with the same weight and size is compelled to go down in the liquid as the temperature rise. The globe will rise if the temperature falls. The lowest suspended globe equals the temperature.
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