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3 teens invented a salt-powered refrigerator that doesn't need electricity. They're building 200 of them for hospitals to use.
The Thermavault refrigeration unit can keep vaccines cool with a reusable salt solution. The teens who built it plan to test ...
Business Insider9y
Powerless refrigerator without electricity
The winning team from the University of Calgary created a refrigerator that runs without electricity. The Windchill relies on concepts borrowed from the biology of insects, coral, kangaroos and ...