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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Revision as of 01:14, 7 December 2008

Celsius is a measurement of temperature. It was originally defined to be where $0^{\circ}$ Celsius is where water freezes at 1 atm and $100^{\circ}$ 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 $-273.15^{\circ}$ and the triple point is $0.01^{\circ}$.

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