3 teens invented a salt-powered refrigerator that doesn't need electricity. They're building 200 of them for hospitals to use.

• 02/16/2025, 3:27 PM
• businessinsider.com

Dhruv Chaudhary/Mithran Ladhania/Mridul Jain

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 transport medical supplies to rural areas without electricity.