Re: If hot air rises, why is it generally colder at higher elevations?

From	Poutnik <Poutnik4NNTP@gmail.com>
Newsgroups	sci.physics
Subject	Re: If hot air rises, why is it generally colder at higher elevations?
Date	2015-10-13 15:01 +0200
Organization	Good company
Message-ID	<mviv89$3an$1@dont-email.me> (permalink)
References	<YN2dndg69rsR8oHLnZ2dnUU7-RmdnZ2d@giganews.com> <mvi0a7$ban$1@speranza.aioe.org> <BW%Sx.1077$Oz3.318@fx02.iad> <mvitv8$f8k$1@speranza.aioe.org>

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On 10/13/2015 02:37 PM, gilber34 wrote:
> 
> like Wormleys new hot air rising into old cold air ?
> 

Old and new has nothing to do with that.

Hot air raises, because is less dense due buoyancy,
and cools itself* down while expanding due adiabatic effect.
It the opposite effect than when a bicycle pump get hot
while pressurizing the tyres.

* aside of slow thermal transfer with surrounding colder air

-- 
Poutnik ( the Czech word for a wanderer )

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If hot air rises, why is it generally colder at higher elevations? Sam Wormley <swormley1@gmail.com> - 2015-10-12 21:42 -0500
  Re: If hot air rises, why is it generally colder at higher elevations? jimp@specsol.spam.sux.com - 2015-10-13 03:59 +0000
    Re: If hot air rises, why is it generally colder at higher elevations? benj <none@gmail.com> - 2015-10-13 00:36 -0400
    Re: If hot air rises, why is it generally colder at higher elevations? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-13 14:48 -0700
  Re: If hot air rises, why is it generally colder at higher elevations? gilber34 <fafa@invalid.com> - 2015-10-12 23:11 -0500
    Re: If hot air rises, why is it generally colder at higher elevations? benj <none@gmail.com> - 2015-10-13 00:40 -0400
      Re: If hot air rises, why is it generally colder at higher elevations? gilber34 <fafa@invalid.com> - 2015-10-13 07:37 -0500
        Re: If hot air rises, why is it generally colder at higher elevations? Poutnik <Poutnik4NNTP@gmail.com> - 2015-10-13 15:01 +0200

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