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

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 JainThree teens built a salt-powered fridge to help bring vaccines and medical supplies to rural areas.The invention uses salts that pull heat from their environments when they dissolve in water.They won the 2025 Earth Prize of $12,500 and plan to test 200 units in 120 hospitals.Three teenagers designed …