Difference between revisions of "Celsius"
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(some purists may object, but "centigrade" just refuses to die) |
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One Celsius degree is equal to one degree [[Kelvin]], with an offset such that T(°C) = T(K) - 273.15. So Kelvin's [[absolute zero]] (the temperature at which there is no heat) is -273.15 degrees Celsius. | One Celsius degree is equal to one degree [[Kelvin]], with an offset such that T(°C) = T(K) - 273.15. So Kelvin's [[absolute zero]] (the temperature at which there is no heat) is -273.15 degrees Celsius. | ||
| − | Celsius is the commonly used unit of temperature in Europe and Canada, but in the United States, Fahrenheit is still preferred. ''Centigrade'' | + | Celsius is the commonly used unit of temperature in Europe and Canada, but in the United States, Fahrenheit is still preferred. |
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| + | ''Centigrade'' is a term commonly used as a synonym of Celsius, especially when giving weather temperature on the air. | ||
See: [[Metric System]] | See: [[Metric System]] | ||
[[Category:Units of Temperature]] | [[Category:Units of Temperature]] | ||
Revision as of 14:01, March 11, 2008
The Celsius is used by scientists to measure temperature. The scale was originally defined such that at standard atmospheric pressure water freezes at 0 ºC and boils at 100 ºC. To convert from Fahrenheit to Celsius take the Fahrenheit temperature, subtract 32 then multiply by 5 and divide by 9.
One Celsius degree is equal to one degree Kelvin, with an offset such that T(°C) = T(K) - 273.15. So Kelvin's absolute zero (the temperature at which there is no heat) is -273.15 degrees Celsius.
Celsius is the commonly used unit of temperature in Europe and Canada, but in the United States, Fahrenheit is still preferred.
Centigrade is a term commonly used as a synonym of Celsius, especially when giving weather temperature on the air.
See: Metric System