Eli5: How do refrigerators work?

Question

Eli5: How do refrigerators work?

In: Technology

Answer 1

A refrigerator is a kind of [heat pump](https://en.wikipedia.org/wiki/Heat_pump), extracting heat from the cold inside and dumping it in the warm outside.

Amusing: Einstein himself got a patent for a [refrigerator](https://en.wikipedia.org/wiki/Einstein_refrigerator).