Mercury Thermometer
About Mercury Thermometer
Fahrenheit, an instrument maker born in Danzig and working in Amsterdam, made the first reliable mercury thermometer in 1714. Mercury expands evenly and stays liquid across a wide range of temperatures. He proposed his temperature scale in 1724. Anders Celsius proposed a centigrade scale in 1742, originally with 100 for freezing and 0 for boiling. Galileo had earlier built an air thermoscope.
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