The Thermavault refrigeration unit can keep vaccines cool with a reusable salt solution. The teens who built it plan to test ...

PITTSBURGH, March 28, 2025 /PRNewswire/ -- "I thought there should be a way to separate a refrigerator from a freezer so the two units would be easier to carry and move," said an inventor ...

The invention uses salts that pull heat from ... Three teenagers designed a mini refrigerator that cools itself with salt and doesn't require an outlet. They're bringing it to hospitals to help ...