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 it at 120 hospitals.

3 INDIAN TEENAGERS INVENT A SALT POWERED FRIDGE: www.businessinsider.com/teens-win-ea... #India #indian #science #smart #tech #technology #cool #innovative #innovational #inspiring #inspiration #inspirational #news #nicenews #coolnews