Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 alpha 4/15/85; site leadsv.UUCP Path: utzoo!linus!philabs!prls!amdimage!amdcad!cae780!leadsv!morse From: morse@leadsv.UUCP (Terry Morse) Newsgroups: net.physics Subject: Re: Space Heater efficiency Message-ID: <544@leadsv.UUCP> Date: Thu, 1-Aug-85 16:36:48 EDT Article-I.D.: leadsv.544 Posted: Thu Aug 1 16:36:48 1985 Date-Received: Sun, 4-Aug-85 06:46:20 EDT References: <3381@decwrl.UUCP> Organization: Lockheed, Sunnyvale CA Lines: 20 In article <3381@decwrl.UUCP>, (John Williams 223-3402) writes: > > Sorry, but space heaters are not 100% efficient. > > The basic idea of entropy is that not all the energy is converted into > a particular frequency band of selection. To put it in other words, > not all of the energy is used to heat the room. > I disagree with your "basic idea of entropy." If one could make a space heater that produced 100% of its energy in a small infrared band, the production of entropy would still be large. Entropy is an indicator of the irreversibility of a process -- it says nothing about a "frequency band" of energy output. Does anyone disagree with me? -- Terry Morse (408)743-1487 { seismo!nsc!cae780 } | { sun!sunncal } leadsv!morse