Laser cooling is the cooling of atoms via spontaneous emission. In the video they say the laser radiation provides a damping force at a particular frequency. This is very close to how Count Rumford envisaged frigorific radiation working.
Is it such a leap to imagine this kind of cooling is experienced by macroscopic bodies without the need for lasers, i.e. with common radiation consisting of a broad spectrum of frequencies? https://www.youtube.com/watch?v=vlBlK9O3M-4 Harry
