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View Full Version : Coldest Temperature Ever Created



Fraser
2005-Sep-07, 06:38 AM
SUMMARY: Researchers from NASA and MIT have cooled sodium gas to the lowest temperature ever recorded - one-half billionth degree above absolute zero. At absolute zero (-273 degrees Celsius), all molecular motion would stop completely since the cooling process has extracted all energy from the material. The gas needed to be confined in a magnetic field; otherwise it would stick to the walls of the container and be impossible to cool down. The researchers used a similar methodology that led to the Nobel Prize for Physics in 2001with the discovery of Bose-Einstein condesates (where the molecules move together in an orderly way at low temperatures).

View full article (http://www.universetoday.com/am/publish/coldest_temperature_ever_created.html)
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