Celsius Temperature Scale

The centigrade scale of temperature was defined as 0°C at the ice point of water and as 100°C at the boiling point of water (at 1 standard atmosphere). The SI Unit of thermodynamic temperature is the kelvin.

Historical Notes

  1. 1742 Anders Celsius invented the Celsius temperature scale. In its original form the scale had 0 degrees for the boiling point of water and 100 degrees for its freezing point.
  2. 1743 The scale was changed by Jean Pierre Christin so that 0 degrees is the freezing point of water and 100 degrees is its boiling point.

See also: Fahrenheit, Kelvin, Reaumur Temperature Scale, Standard Atmosphere, Temperature, Thermometer, Thermometry.

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Subjects: Units