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Message from discussion Only of interest to USA citizens...
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Robert A. Woodward  
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 More options Oct 15 2012, 12:35 pm
Newsgroups: rec.arts.sf.written
From: "Robert A. Woodward" <rober...@drizzle.com>
Date: Mon, 15 Oct 2012 09:35:32 -0700
Local: Mon, Oct 15 2012 12:35 pm
Subject: Re: Only of interest to USA citizens...
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In article <XnsA0ED5E4BAC23Ftaustingm...@69.16.186.7>,
 Gutless Umbrella Carrying Sissy <tausti...@gmail.com> wrote:

> "Rod Speed" <rod.speed....@gmail.com> wrote in news:adukm2Fjir7U2
> @mid.individual.net:

> > Wayne Throop <thro...@sheol.org> wrote
> >> Walter Bushell <pr...@panix.com> wrote

> >>> Yes, the coal plant just sends the pollution
> >>> up the stack and into the general biosphere.

> >> I had heard that coal power plants release more radioactivity
> >> into the atmosphere than nuclear power plants are allowed to.
> >> Potassium-40, small amounts of uranium and thorium, and their
> >> decay products like radium and radon.

> > Yes, but its not true of CO2 particularly.  

> Isn't a certain percentage of the C in CO2 still (technically)
> radioactive?

From coal that is 300+ million years old? C-14 has a half-life of
about 5730 years; that is over 52 thousand half-lives. My BoE
calculation suggests a reduction to 10^-15000 of the original
concentration. Since that requires vastly more particles than there
is in the universe, I would say the approximate number of C-14
atoms in all of the coal on Earth is zero.

--
Robert Woodward <rober...@drizzle.com>
<http://www.drizzle.com/~robertaw>


 
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