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Re: CONSERVATION OF ENERGY



At 11:08 7/16/97 EDT, Ludwik wrote:

I wish I could ask Feynman who wrote (vol I, p 4-33):

"Let us begin by stating the first law, the conservation of energy: if one
has a system and puts heat into it, and does work on it, then its energy
is increased by the heat put in and the work done. We can write this as
follows: The heat Q put into the system, plus the work done on the system,
is the increase in the energy U of the system; the latter energy is
sometimes called the internal energy."


I can offer only this:
when Feynman says 'some people call this...'
he acknowledges usage. In discussing the capacitance of a single sphere
elsewhere in the Lectures, he uses a similar linguistic nuance but in that
case makes it more clear that this is not his prefered description.

Regards
brian whatcott <inet@intellisys.net>
Altus OK