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Jan. 04, 2013

Negative Temperatures That Are Hotter Than the Sun

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Scientists have cooled potassium gas to one billionth of a degree below absolute zero. But in the quantum world, that's actually hotter than the Sun. It's hotter, even, than infinity degrees Kelvin. Vladan Vuletić, a quantum physicist at MIT, talks about this 'Bizarro World' temperature.
Produced by Christopher Intagliata, Associate Senior Producer
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