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From: grl@charm.UUCP (George Lake)
Newsgroups: net.physics
Subject: Re: My "FUSION this decade?" this article
Message-ID: <712@charm.UUCP>
Date: Wed, 31-Jul-85 17:15:40 EDT
Article-I.D.: charm.712
Posted: Wed Jul 31 17:15:40 1985
Date-Received: Fri, 2-Aug-85 01:29:05 EDT
References: <291@greipa.UUCP> <694@charm.UUCP>, <330@dcl-cs.UUCP>
Organization: Physics Research @ AT&T Bell Labs Murray Hill NJ
Lines: 13

I had a passing remark that space heaters are 100% efficient that
was objected to on the basis of the second law of thermodynamics.
A space heater takes electricity and converts it to heat--
a highly entropic process and it is 100% efficient.  The second
law tells you that you can't go the other way with 100% eff.

BTW, heat pumps have an efficiency greater than 100%.  They
are air conditioners run backwards.  They generate heat on their
own and draw some from the ground.  They still obey the 
second law.

Sorry to take up space responding to a silly attempt by someone
to be clever.