WEATHER INSTRUMENTS
Galileo Thermometer
Galileo Thermometer
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Galileo Thermometer |
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Price:
$12.75
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The thermometers work on the principle discovered by its namesake Galileo, that liquids change density as temperature changes. The colored glass spheres have been precisely weighted so that they respond to temperature changes by rising or falling in a liquid filled, handblown glass cylinder. The lowest floating sphere indicates the current air temperature. |
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