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Old August 9th 15, 10:29 PM posted to uk.sci.weather
Alastair Alastair is offline
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Default Four questions (with answers)

On Sunday, 9 August 2015 21:37:01 UTC+1, Alan LeHun wrote:
In article ,


Take the cold object. It is cold but it is still cooling. It does this
by radiating energy. That which you call 'cold' radiation.


No, "cold radiation" is radiation which cools a (hot) body. It can be at any temperature, but it must be less than that ot the (hot) body, which can also be at any temparature.

This
radiation (which contains thermal energy from the cold object) then
strikes a hot object. Your proposition is that the thermal energy that
radiation contained from the cold object simply evaporates into
nothingness, taking with it some of the thermal energy from the hot
object.


No, what happens is that the "cold" energy is added to that of the warm body, which is emitting blackbody radiation. That will contain more energy than the blackbody radiation emitted by the cold body so the warm body will cool. The net energy for the warm body is negative.

This is a direct contradiction of the Law of Conservation of Energy. Yes, but that is not what happens.


Imagine a universe that contains only two objects. A cold one and a hot
one, that are fairly close to each other. Both objects will cool by
radiating energy. My position is that if you increase the distance
between the objects, both objects will cool quicker. If you remove one
object, the other object will cool quicker.


Yes, because the background radiation is the main cold radiation in that case. If your universe has no background radiation then the cold radiation is zero, and you can claim that it does not exist, but only in the hypothetical case of universe without background radiational. Cold radiation still exists in all other real cases.

Please, try to understand what I am saying rather than trying to find extreme scenarios where you think it does not apply.

Cheers, Alastair.