In 1804 by John Leslie invented the Leslie Cube. It is used to investigate how surface type changes thermal emissions. In this video a Leslie cube is filled with boiling water and an infrared probe is used to estimate the amount of infrared radiation emitted by each side. https://www.youtube.com/watch?v=i7Car64ICqk
What sort of readings would one get if the cube were filled with ice water? It should be pointed out that it is impossible to impartially investigate hypothetical frigorific radiation with a device like an infrared probe because it is not designed to detect such radiation. Would a thermocouple be better? No because they are also sensitive to infrared radiation so that means they are also biased detection devices. It would be better to use "primitive" devices like a thermoscope or a bulb thermometer. Harry Harry
