eli5: I’ve seen some yt short about having freezers in research stations on Antarctica that are constantly kept at -20°C where the outside is -70°C, how do those freezers work? Are they in this situation just a heater that keep the room at -20°C or something else?

Question

eli5: I’ve seen some yt short about having freezers in research stations on Antarctica that are constantly kept at -20°C where the outside is -70°C, how do those freezers work? Are they in this situation just a heater that keep the room at -20°C or something else?

In: Other

Answer 1

Wouldn’t it have something to do with the compression cycle of whatever gas it uses?