3 teens invented a salt-powered refrigerator that doesn't need electricity. They're building 200 of them for hospitals to use.
Dhruv Chaudhary, Mithran Ladhania, and Mridul Jain worked together to build a salt-powered refrigerator. Dhruv Chaudhary/Mithran Ladhania/Mridul Jain Three teens built a salt-powered fridge to help bring vaccines and medical supplies to rural a...