Another way to study the algorithm for the movement of heat: put a heat/ir sensor in a vacuum with a resistance heater.

Suspend the heating element with magnets. Use a battery.

Set a timer to emit a fixed amount of heat. Reorientate the heating element with the magnets if you wish.

Yea, we all know infra from sun haven't reached Earth ever, and radiative cooling doesn't exist.

Also, you must be over 18(eightteen) to post here.