From: John Woodgate
Newsgroups: sci.electronics.design
Subject: Re: Apology- Missile Paranoia
Date: Tue, 31 Dec 2002 08:33:33 +0000
Organization: JMWA Electronics Consultancy
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Reply-To: John Woodgate
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I read in sci.electronics.design that Spehro Pefhany
wrote (in ) about 'Apology- Missile Paranoia', on Mon, 30 Dec 2002:
>On Mon, 30 Dec 2002 22:15:40 +0000, the renowned John Woodgate
> wrote:
>
>
>>I very much doubt that. It's simply due to the fact that more energy is
>>required to make the elements with high atomic numbers. If it wasn't for
>>that high energy, nuclear fission would not produce such big bangs.
>
>They think that elements heavier than iron are essentially stardust
>left over from supernovas, so they would be rare.
Supernovae themselves are not rare, or maybe WERE not rare when the
Universe was much younger. But because of the energy required, the
heaviest elements are scarce in the output of a supernova. They make an
awful lot of hot isotopes of nickel and cobalt, just a bit heavier than
iron.
>
>Of course, fusion is possible with low atomic number
>elements, but so far it seems to be easier on a rather large scale.
And is very difficult to start without a fission trigger.
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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