Jean-Pierre Christin invents the Celsius thermometer.
The centigrade temperature scale, which is based on the freezing and boiling point of water, is used by most countries around the world. Exceptions include the United State, Belize, and Palau.
Jean-Pierre Christin invents the Celsius thermometer.
The centigrade temperature scale, which is based on the freezing and boiling point of water, is used by most countries around the world. Exceptions include the United State, Belize, and Palau.