Technology
Your refrigerator cools food by boiling liquid
HERE’S THE INTERESTING PART
Your fridge does not magically generate cold air; it forcefully steals heat. A compressor violently squeezes a chemical refrigerant into a hot, high-pressure gas, then lets it rapidly expand into a liquid inside the back wall. This sudden expansion causes the chemical to literally boil at a freezing temperature, aggressively absorbing the ambient heat from your leftover pizza.
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