# Difference between revisions of "Celsius"

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'''Celsius''' is a [[measurement]] of [[temperature]]. It was originally defined to be where <math>0^{\circ}</math> Celsius is where water freezes at 1 [[atm]] and <math>100^{\circ}</math> Celsius is where water boils at 1 atm. | '''Celsius''' is a [[measurement]] of [[temperature]]. It was originally defined to be where <math>0^{\circ}</math> Celsius is where water freezes at 1 [[atm]] and <math>100^{\circ}</math> Celsius is where water boils at 1 atm. | ||

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However different thermometers register slightly different temperatures at these points, so now, two points: the absolute zero and the triple point of water are used to fix the Celsius scale. To avoid incompatibility, absolute zero is defined to be <math>-273.15^{\circ}</math> and the triple point is <math>0.01^{\circ}</math>. | However different thermometers register slightly different temperatures at these points, so now, two points: the absolute zero and the triple point of water are used to fix the Celsius scale. To avoid incompatibility, absolute zero is defined to be <math>-273.15^{\circ}</math> and the triple point is <math>0.01^{\circ}</math>. | ||

[[Category:Definition]] | [[Category:Definition]] | ||

[[Category:Physics]] | [[Category:Physics]] | ||

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{{stub}} | {{stub}} |

## Revision as of 01:14, 7 December 2008

**Celsius** is a measurement of temperature. It was originally defined to be where Celsius is where water freezes at 1 atm and Celsius is where water boils at 1 atm.

However different thermometers register slightly different temperatures at these points, so now, two points: the absolute zero and the triple point of water are used to fix the Celsius scale. To avoid incompatibility, absolute zero is defined to be and the triple point is .

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