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 | | From: | Edward Green | | Subject: | Re: Global dimming masking greenhouse effect | | Date: | 18 Jan 2005 01:11:36 -0800 |
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 | Eric Gisin wrote:
> "ad" wrote in message
> news:2lDGd.41$8V2.1635@nnrp1.ozemail.com.au...
> > Nice language.
>
> Habshi has a friend. Do you also think trees spontaneously combust at
45C?
Maybe he does, but he seemed to be objecting to your tenor. As for the
latter point, I've never had an opinion on this question; but after 30
seconds thought, I'm sure your cocksure attitude is unjustified.
Do oil soaked rags spontaneously combust at 45C? Sure they do... that
is, if we're talking about ambient temperture: they combust at a lot
lower ambient temperatures than that, given proper local conditions.
Since nobody has implied that the 45C is other than ambient
temperature, we are justified in taking it as such.
Now, why might temperatures inside a tree or deadwood rise higher than
ambient? First of all, the sun: depending on reflectance, objects
irradiated by the sun can get signfigantly hotter than air temperature.
Second of all, chemical reactions, subject to the insulative
properties of the wood: same as the oily rags. If a non-combustive
exothermic reaction can start up in an insulated space it can generate
enough local temperature rise to spark combustion. Do any of the woods
in these forests have a high oil content?
It may or may not happen, but it's plausible enough to make the mere
idea that it might less than the litmus test of idiocy you take it for.
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| | From: | jimp at specsol-spam-sux.com | | Subject: | Re: Global dimming masking greenhouse effect | | Date: | Tue, 18 Jan 2005 15:28:16 +0000 (UTC) |
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| In sci.physics Edward Green wrote:
> Eric Gisin wrote:
> > "ad" wrote in message
> > news:2lDGd.41$8V2.1635@nnrp1.ozemail.com.au...
> > > Nice language.
> >
> > Habshi has a friend. Do you also think trees spontaneously combust at
> 45C?
> Maybe he does, but he seemed to be objecting to your tenor. As for the
> latter point, I've never had an opinion on this question; but after 30
> seconds thought, I'm sure your cocksure attitude is unjustified.
> Do oil soaked rags spontaneously combust at 45C? Sure they do... that
> is, if we're talking about ambient temperture: they combust at a lot
> lower ambient temperatures than that, given proper local conditions.
> Since nobody has implied that the 45C is other than ambient
> temperature, we are justified in taking it as such.
> Now, why might temperatures inside a tree or deadwood rise higher than
> ambient? First of all, the sun: depending on reflectance, objects
> irradiated by the sun can get signfigantly hotter than air temperature.
> Second of all, chemical reactions, subject to the insulative
> properties of the wood: same as the oily rags. If a non-combustive
> exothermic reaction can start up in an insulated space it can generate
> enough local temperature rise to spark combustion. Do any of the woods
> in these forests have a high oil content?
> It may or may not happen, but it's plausible enough to make the mere
> idea that it might less than the litmus test of idiocy you take it for.
While there are a lot of things that will spontaneously combust at 45C,
trees aren't one of them.
--
Jim Pennino
Remove -spam-sux to reply.
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| | From: | Eric Gisin | | Subject: | Re: Global dimming masking greenhouse effect | | Date: | Tue, 18 Jan 2005 13:58:55 -0800 |
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| Another idiot troll. A forest is not similar to oily rags in a can, which will
reach 100C+. The cause of forest fires is not up for debate.
"Edward Green" wrote in message
news:1106039496.863247.208530@z14g2000cwz.googlegroups.com...
> Do you also think trees spontaneously combust at 45C?
>
> Maybe he does, but he seemed to be objecting to your tenor. As for the
> latter point, I've never had an opinion on this question; but after 30
> seconds thought, I'm sure your cocksure attitude is unjustified.
>
> Do oil soaked rags spontaneously combust at 45C? Sure they do... that
> is, if we're talking about ambient temperture: they combust at a lot
> lower ambient temperatures than that, given proper local conditions.
> Since nobody has implied that the 45C is other than ambient
> temperature, we are justified in taking it as such.
>
> Now, why might temperatures inside a tree or deadwood rise higher than
> ambient? First of all, the sun: depending on reflectance, objects
> irradiated by the sun can get signfigantly hotter than air temperature.
> Second of all, chemical reactions, subject to the insulative
> properties of the wood: same as the oily rags. If a non-combustive
> exothermic reaction can start up in an insulated space it can generate
> enough local temperature rise to spark combustion. Do any of the woods
> in these forests have a high oil content?
>
> It may or may not happen, but it's plausible enough to make the mere
> idea that it might less than the litmus test of idiocy you take it for.
>
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