I’m curious about the really old ice boxes, but I was really wondering about the ones from the 1800s that relied on coolant and some form of evaporation.
I can’t really picture how old is physics work without electricity.
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Root cellars!
I remember behind my grandparents house was a cellar they had dug out years ago. It went down about 10 feet and had a large mound of dirt on it. It was always way cooler down there than outside.
Some of the early refrigerators used a block of ice shipped in from somewhere.
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