jayknight@lemmy.mltoAsklemmy@lemmy.ml•Probably a stupid question, but will we ever have something like a microwave to make things cold? Is there a reason this can't exist?
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1 year agoBut a fridge is the opposite of an oven. Some kind of flash freezing would be like the unmicrowave.
This reminds me of a great demonstration of how directional antennas focus radio waves in one direction: https://youtu.be/lslHtCUSfN4