[meteorite-list] Earths core

From: mark ford <markf_at_meteoritecentral.com>
Date: Tue Aug 10 06:43:37 2004
Message-ID: <6CE3EEEFE92F4B4085B0E086B2941B3101459B_at_s-southern01.s-southern.com>

Hi Stan,


Yes, Sorry Got my fusion and fission mixed up, and misread your post!

 I think looking for anti neutrinos would be the way to go, since these
would indicate a nuclear reaction, and they travel through rock without
hindrance.

In the article I read, the scientists, suggested that they had already
detected some anti-Neutrino's but couldn't prove that they came directly
from the core (their detectors had no directional information) but they
reckon they know a way to work out the direction the particles are
coming from.

They want to build a detector, and the best place seems to be the
tropical island of Curacao ...hmm suspicious!!! :) - This is supposedly
because of the very low radiation background on the islands, and nothing
to do with it being a tropical paradise...

Best!
Mark



-----Original Message-----
From: stan . [mailto:laser_maniac_at_hotmail.com]
Sent: 09 August 2004 21:28
To: mark ford
Subject: RE: [meteorite-list] Earths core

Oh I belive it... i dont know if maybe we misunderstood each other, i
thought you were tlaking about a FUSION reaction in your post, ie fusing

hydrogen into helium as in the sun...
stan



>From: "mark ford" <markf_at_ssl.gb.com>
>To: "stan ."
><laser_maniac_at_hotmail.com>,<meteorite-list@meteoritecentral.com>
>Subject: RE: [meteorite-list] Earths core
>Date: Mon, 9 Aug 2004 16:35:56 +0100
>
>
>Stan,
>
>Looking around, several studies have shown that a self sustaining
>fission reaction, is indeed possible in the core of a planet.
>
>See:
>
>http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=58687
>
>
>Mark
>
>
>
>
>-----Original Message-----
>From: stan . [mailto:laser_maniac_at_hotmail.com]
>Sent: 09 August 2004 16:15
>To: mark ford; meteorite-list_at_meteoritecentral.com
>Subject: RE: [meteorite-list] Earths core
>
>
> >Well, Half life can't change (otherwise the universe would be in a
real
>
> >mess) but who knows what effect very very high pressure, heat and
> >gravitational force would have on a fission reaction, maybe at the
>earths
> >core, a nuclear reaction happens at an accelerated rate due to the
much
>
> >higher pressures (i.e the atoms are forced much closer together, and
>there
> >would be total neutron absorbtion) or maybe even hot fusion? This
would
>
> >result in the radioisotopes transmuting into Lead and Iron etc a lot
>faster
> >than they would under natural decay.
>
>
>fusion isn to going to be possible in the earth's core- tempertures are
>off
>by several orders of magnitude..
>
>fission reactions arent affected by high pressure, heat or gravity
>(within
>sensible limits). as the earth's core is under tremendous pressure it's
>density is increased, so the criticle mass of uranium is
correspondingly
>
>lowered, making it easier for a blob of uranium to undergo a fission
>chain
>reaction. this sint going to 'transmute radioisotopse into lead and
>iron'
>any faster however, since the timespan of the radioactive decay chain
is
>
>unchanged.
>
>also, if we were to find a hunk of a heavy (density wise) element iron
>meteorite, remeber that it would ahve to come from the core of a body
>large
>enough to differentiate to a similar extent as the earth (per your
>original
>question). i dont know if there are any asteroids out there that sample
>hundreds if not thousands of miles inside of what used to be a large
>body.
>
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Received on Tue 10 Aug 2004 06:40:36 AM PDT