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 00:14, 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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