Professor Says He's Invented A Real-life "Freeze Ray"

The problem with being in space or an extremely thin atmosphere is that there's "very little air that can cool," Hopkins explained. Bringing a bunch of coolant isn't a great solution, either, "because that’s going to increase the weight, and you lose efficiency."

A prototype device, as detailed in a new paper his team published in the journal ACS Nano, takes advantage of an unusual physical property of plasma, which is commonly referred to as the "fourth state of matter."

In previous experiments, Hopkins and his colleagues found that a purple jet of plasma cooled a gold-plated surface before heating it up — a puzzling yet replicable result...

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@EverythingScience