On 09/08/15 19:26, Alastair wrote:
On Friday, 7 August 2015 18:25:05 UTC+1, Stephen Davenport wrote:

Your smart, so I don't understand why this is so difficult.

Stephen.

Because I was not smart enough to realise Dawlish thinks that because
a cold body radiaties blackbody radiation it will warm an adjacent
body. That is just unbelievable - wouldn't you agree? Surely even a
fool like him can't think that.


A 'cold' body emits radiative energy proportional to T^4, where T is its
absolute temperature. So does a hot body.
The energy from that cold body will be absorbed by a nearby hot body.
This is just well known physics. Radiation from the hot body will be
absorbed by the cold body and some of that will be re-emitted back to
the 'hot' body!!
So, far from the cold body cooling the hot body as you claim, it does
the opposite. Do the experiment yourself. (I'm assuming no other sources
of radiation)