air conditioning may be making us fat
in [Europe]
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From: Mxsmanic on 20 Jul 2006 15:54 EvelynVogtGamble(Divamanque) writes: > Tell that to all the opera singers who find it difficult to > sing in the ubiquitous air-conditioning they find in the > U.S., because it causes such dryness in the vocal apparatus! Air-conditioning systems can be designed and adjusted to provide any desired level of relative humidity. Those used for computer rooms, for example, typically hold humidity at 60%. Have those opera singers practice in a building with central forced-air heating, and we'll see what happens. -- Transpose mxsmanic and gmail to reach me by e-mail.
From: Mxsmanic on 20 Jul 2006 15:57 EvelynVogtGamble(Divamanque) writes: > Oh? Please explain how they differ. SFAIK, both recycle > and filter air. No, they don't. Building air-conditioning systems use a captive refrigerant to transfer heat from evaporator coils to condenser coils. Room air is passed over the evaporator coils to cool and dehumidify it (through condensation). Fresh air is added as required. Aircraft systems pass filtered, highly compressed air bled from the compression stages of the engines through cold portions of the airframe, then expand it to atmospheric pressure, causing it to cool dramatically. This cool air is then sent into the cabin. Refrigerants are not required or used. It's similar to the ROVAC systems once proposed for cars (although they never really became popular). -- Transpose mxsmanic and gmail to reach me by e-mail.
From: David Horne, _the_ chancellor of the royal duchy of city south and deansgate on 20 Jul 2006 16:03 Mxsmanic <mxsmanic(a)gmail.com> wrote: > EvelynVogtGamble(Divamanque) writes: > > > How odd that no one seems to accept what you claim is true! > > They are the ones who haven't looked it up. Where did you look up the rubbish you write about music? -- David Horne- http://www.davidhorne.net usenet (at) davidhorne (dot) co (dot) uk http://homepage.mac.com/davidhornecomposer http://soundjunction.org
From: Dave Frightens Me on 20 Jul 2006 16:15 On Thu, 20 Jul 2006 13:33:33 +0100, The Reid <dontuse(a)fell-walker.co.uk> wrote: >Following up to Carole Allen > >>By definition, those with AS have a normal IQ and many individuals >>(although not all), exhibit exceptional skill or talent in a specific >>area. Because of their high degree of functionality and their naivetĀ, > >there was an autistic chap on the radio who could speak 10 >languages and recite pie to 2000 places but didnt know left from >right. Someone should show him the trick with the hands. Hold both your hands with the palms facing out, and point the thumbs together. The thumb and forefinger on the left hand make an 'L'. -- --- DFM - http://www.deepfriedmars.com --- --
From: Dave Frightens Me on 20 Jul 2006 16:17
On Thu, 20 Jul 2006 13:48:53 +0200, Mxsmanic <mxsmanic(a)gmail.com> wrote: >Martin writes: > >> There was one legionalla fatality and 18 infected in A'dam last week. > >Maybe A'dam needs to learn more about how to operate A/C systems >properly. You mean 'maintain'. -- --- DFM - http://www.deepfriedmars.com --- -- |