Comments on: 3 teens invented a salt-powered refrigerator that doesn’t need electricity. They’re building 200 of them for hospitals to use https://lifeboat.com/blog/2025/04/3-teens-invented-a-salt-powered-refrigerator-that-doesnt-need-electricity-theyre-building-200-of-them-for-hospitals-to-use Safeguarding Humanity Sun, 20 Apr 2025 02:29:21 +0000 hourly 1 https://wordpress.org/?v=6.7.2