Science

Negative Temperatures That Are Hotter Than The Sun

NPR | Jan. 7, 2013 9:23 a.m.

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.

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