What is Cold: Absolute Zero and the Physics of Cold on NOVA

Nova Website – Over the past 400 years, scientists, inventors, and others have gone a long way toward mastering cold. They have learned how to measure and describe it. They have followed it down into the netherworld of extraordinarily low temperatures, where bizarre things such as superfluidity begin happening. And they have harnessed it to benefit humanity through advances like air-conditioning and frozen foods. In this Website, learn about the theoretical upper limit of temperature, find an article by author Tom Shachtman on the cultural impact of artificial refrigeration, read an interview with physicist Luis Orozco on ultracold Bose-Einstein condensates, browse a list of notable temperatures ranging from absolute zero to the hottest theoretical temperature in the universe, and more.

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