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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This is a bit like asking if we could build a flashlight that emits a beam of darkness I think
Shooting something with “cold energy beams” is an anti-microwave
We aren’t talking about machines to make things cold, I was asked if we could make microwaves that make stuff cold
I do believe that's a freezer.
heat pump
I have that device
It is my phone
Very much so, and equally possible in theory (interference patterns with light exist, light cancellation could work somewhat like noise cancelling) but also equally impossible to do at anything much above an atomic scale.
That's a fog machine
