Re: [asa] writing equations - a request

I think that Dave is on the right track. If there is effective ironing
then the temperature of the clothes (amd board) will rise -- the energy
of the molecules constituting those entities is increased and so the
energy available elsewhere falls. If all the energy is radiated back
into the sytem then there is no effective ironing-- as I remarked earlier.
Don

D. F. Siemens, Jr. wrote:

>On Thu, 20 Jul 2006 22:08:50 -0400 "George Murphy" <gmurphy@raex.com>
>writes:
>
>
>>Sure, but the clothes & the ironing borad then re-radiate energy.
>>
>>Shalom
>>George
>>http://web.raex.com/~gmurphy/
>>
>>
>
>First, I have been unable to locate a borad. Second, the re-radiation
>will be less efficient (if that is the proper term) because the
>temperature will be lower. Third, assuming perfect reflection (but
>reflectors in practice are not perfect), there would have to come a point
>of exact equilibrium between the ends. This last is easiest to see if we
>think of just two hot irons (points), but will eventuate in more complex
>interactions of irons, boards, clothes, etc.
>Dave
>
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-- 
Donald A. Nield
Associate Professor, Department of Engineering Science
University of Auckland
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