Why Can I See My Breath On A Cold Day But Not A Warmed Up Cars Exhaust Fumes ?

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Offline neilep

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Darlings,

As ewe can well imagine, girlies, boisies, even plantsys get all hot and bothered around me.
As a sheepy I am of course naturally filled with ebullient charisma, a veritable hot spring oasis of attractive wantonness !

Look, here's a car exhaust getting all excited because it just drove past me !

[attachment=6098]

Seeing this car getting all "Exhausted" reminded me a question I need answering !

That car, also bellows its stuff when it's cold yes ?...even when it's freezing cold outside it makes steamy stuff  yes ?

But, when the car warms up , despite it being so cold out, the steamy stuff disappears !!..this does not happen when ewe and me are out in the cold and our breath is visible ...see ?

[attachment=6100]
Some Bloke Inside A very Cold House

Now why does that happen ?

Why does steamy breath make steam but not a cars exhaust when the atmosphere is cold ?


ewe see, I really do not know !...I want to know !

Please let me know !



Hugs and shmishes

mwah mwah mwah mwah



neil
Bothered About Seeing My Breath On A Cold Day
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Men are the same as women, just inside out !

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Offline Karen W.

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Correct me if  I am wrong but unlike your car exhaust, your mouth continues to be filled with moisture.... and a hot car has burned off all the condensation which had built up in the exhaust system so the moisture is gone and no moisture then no steam...right?  but your mouth continually produces moisture if your lucky anyway and thus you are a steaming hot machine and thus will always..produce!!!
« Last Edit: 02/01/2009 03:36:13 by Karen W. »

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline neilep

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I would correct ewe if ewe were wrong, but when I last checked ...it was me who asked the question !..hmmm....let me check again !! ....YEP !..it's definitely me who wants to know  !!  [;D] [;D]
Men are the same as women, just inside out !

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Offline Karen W.

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Well....then.. thats my humble opinion.....LOL..

Not being very bright here, I stand to be corrected by a knowledgeable scientific....person who can base their theory on iron clad scientific data!..LOL....
« Last Edit: 02/01/2009 12:47:57 by Karen W. »

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline LeeE

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I think KarenW is correct - the steam in the car exhaust comes from water that has condensed in the exhaust system, and which is evaporated by the hot exhaust fumes passing through the exhaust system when the engine is started.  The steam stops once all the water has been evaporated or when the outside temperature rises too high to condense the evaporated water back in to droplets.
...And its claws are as big as cups, and for some reason it's got a tremendous fear of stamps! And Mrs Doyle was telling me it's got magnets on its tail, so if you're made out of metal it can attach itself to you! And instead of a mouth it's got four arses!