Cold Profile

Full Name:Cold - Contact Cold
Birth Name:Grundig
Date of Birth: 1986
Place of Birth: Jacksonville, Florida, USA
Claim to Fame: Album Cold (1998)

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Cold
extracted from Wikipedia, the Free Encyclopedia, distributed under the GNU Free Documentation License

This article is about the temperature. For other uses, see Cold (disambiguation).
Search Wiktionary Look up cold in Wiktionary, the free dictionary.

Cold refers to the condition or perception of having low temperature; it is the absence of heat or warmth. Many things are associated with cold, such as ice and the color blue. Fluids used to cool objects are commonly called coolants.

The coldest possible theoretical temperature that can be reached is absolute zero, which is 0 K on the Kelvin scale, a thermodynamic temperature scale, and −273.15° on the Celsius scale. Absolute zero is also precisely equivalent to 0 °R on the Rankine scale (also a thermodynamic temperature scale), and −459.67 degrees on the Fahrenheit scale.

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Cooling

Main article: Refrigeration

Cooling refers to the process of becoming cold, or lowering in temperature. This could be accomplished by removing heat from a system, or exposing the system to an environment with a lower temperature.

Air cooling is the process of cooling an object by exposing it to air. This will only work if the air is at a lower temperature than the object, and the process can be enhanced by increasing the surface area or decreasing the mass of the object.

Another common method of cooling is exposing an object to ice, dry ice, or liquid nitrogen. This works by convection; the heat is transferred from the relatively warm object to the relatively cold coolant.

Notable cold locations and objects

See also

References

Search Wikimedia Commons Wikimedia Commons has media related to: Cold
  1. ^ "Boomerang Nebula boasts the coolest spot in the Universe". NASA's Jet Propulsion Laboratory. June 20, 1997. http://www.jpl.nasa.gov/news/releases/97/coldspot.html. Retrieved July 8, 2009. 
  2. ^ Jonathan Amos (9 February 2009). "'Silver Sensation' Seeks Cold Cosmos". BBC News. http://news.bbc.co.uk/2/hi/science/nature/7864087.stm. Retrieved 2009-03-06. 
  3. ^ Hinshaw, Gary (December 15, 2005). "Tests of the Big Bang: The CMB". NASA WMAP. http://map.gsfc.nasa.gov/m_uni/uni_101bbtest3.html. Retrieved 2007-01-09. 
  4. ^ http://www.nasa.gov/worldbook/uranus_worldbook.html
  5. ^ http://www.nasa.gov/worldbook/saturn_worldbook.html
  6. ^ http://www.nasa.gov/worldbook/mercury_worldbook.html
  7. ^ http://www.nasa.gov/worldbook/jupiter_worldbook.html
  8. ^ http://www.nasa.gov/worldbook/mars_worldbook.html
  9. ^ http://earthobservatory.nasa.gov/IOTD/view.php?id=8070
  10. ^ http://www.independent.co.uk/news/science/polar-explorers-reach-coldest-place-on-earth-433074.html
  11. ^ Budretsky, A.B. (1984). "New absolute minimum of air temperature" (in Russian). Bulletin of the Soviet Antarctic Expedition (Leningrad: Gidrometeoizdat) (105). http://www.aari.aq/publication/abs_min/abs_min.html.