It’s so hot and I’m grateful to have them but how do they actually create the cold without ice or anything?
In: 5
When you squish a gas, it heats up. When you squish it until it liquefies, it heats up even more.
If you release it, then it returns to being a gas and cools back down.
What if, before you let it expand, you let it cool down and shed its heat to its surroundings? Then, when it cools back down, it gets quite cold instead of returning to its original temperature.
If we take a fluid and do this to it repeatedly, shedding its heat outside of your house and then while it’s cold it cools down the air inside, it keeps your house cold. So long as the pump keeps running it’ll keep cooling the house.
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