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That's an air conditioner. Or a fridge.
You just need to adjust the output and input sizes. Do to like... physics. It is easier to add heat to a system than to remove it.
I present the Macro Wave!
These are all word for word the same answers to the not poop for 3 days quest.
It occurs to me that you could get some really high-speed cooling with liquid nitrogen (or dry ice and alcohol) but the reality of working with cryogenic fluids is that they're pretty dangerous so I don't think anyone would do that. Unlike a microwave where the dangerous part (the waves) is all self-contained and turns off the instant you open the door.
I donβt know if itβs a stupid question or not but I have been wondering this myself for years. :)
Fridge, well. But now I'm wondering if that would be possible with electromagnetic radiation somehow. Would it be possible to direct infrared waves away from a closed chamber, making the inside cooler? Like a semipermeable membrane in shoes with water vapor?
Removing heat energy is what your freezer does, by transferring it outside of the freezer box.
You canβt just remove heat by adding electromagnetic energy. Absorbing energy from the electromagnetic radiation makes heat.
Edit: whelp, TIL
The magnetocaloric effect can do this. Instead of the target absorbing energy, the magnet does. The magnet heats up and the target cools.
If you're very careful you can remove heat with electromagnetic energy.
Think of heat like someone on a rope swing, and electromagnetic energy as a push.
If you time, and angle your pushes very carefully you can slow the person on the swing. But it's much easier to speed them up. Same with electromagnetic energy.
Yeah there are those machines that like instantly cool your soda can or make ice cream instantly supposedly. They just bathe it in ice and salt water for some time basically
Cold doesn't exist, it is merely the absence of heat. Easier to insert heat than remove it, same reason why you can put on warmer clothes in the winter, but you can't make yourself cold in the summer.
'projecting' energy is kinda easy... 'sucking' energy is difficult