On 09/08/15 23:30, Alastair wrote:
On Sunday, 9 August 2015 21:41:27 UTC+1, Dawlish wrote:

So if we took the cold object away, the hot one would still cool?
You are saying it is not the cold object that is making it cold.

The warmer object would cool by emitting more radiation than it
gained, if the surroundings were cooler.

And if we took the cold object away and the surrounding were not
cooler what would happen?


If the 'surroundings' are a uniform background of black-body radiation
at a temperature greater than the body in question then the body will
heat up till it is at the same temperature as the surroundings.