Re: Yet another new battery breakthrough
- From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 19 Dec 2007 08:40:34 -0800
On Tue, 18 Dec 2007 23:56:53 -0800, Jeff Liebermann <jeffl@xxxxxxxxxx>
wrote:
Martin Griffith <mart_in_medina@xxxxxxxx> hath wroth:
http://www.nextenergynews.com/news1/next-energy-news-toshiba-micro-nuclear-12.17b.html
No price tag
martin
No useful data also. This thing smells like a fabrication.
It does.
The terms in the article are also fishy. Nuclear reactors do not use
control rods for anything other than emergency shutdown. Certainly
not to "initiate" the chain reaction, whatever that means.
They use control rods for control, constantly.
And a reactor can be designed to be under-moderated, where
neutron-slowing (but not neutron absorbing) control rods or equivalent
cooling fluid enhance the reaction rate. A boiling-water reactor is
moderated by the water itself, so if ever the water is lost the main
fission reaction stops. (A moderator is necessary to slow down
neutrons to thermal velocities. Fast neutrons zip through and are
lost.)
One of the problems in the Chernobyl disaster was that the ends of the
absorbing rods acted as moderators, so actually made things worse.
John
.
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- Yet another new battery breakthrough
- From: Martin Griffith
- Re: Yet another new battery breakthrough
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