posted on Apr, 13 2011 @ 07:30 AM
reply to post by Fiberx
The additional issue is that if the ground water is irradiated it can spread the contamination to other water supplies, which is probably the real
That is a concern. The greater concern is that the cores fully melt down (probably have) breach containment (probably have) and go through the cement
floor. This materially would essentially be super heated radioactive lava. If this breaks through, goes down and hits water, you will have the
potentially for a catastrophic explosion and release of material.
It will still NOT be a nuclear bomb reaction as I have explained in various threads.
The difference between a reactor and a bomb is critical mass. Nuclear fission works when uranium loses a neutrino which causes the uranium to split,
releasing energy. The lost neutrino hit's another uranium atom and causes it to split, causing a chain reaction.
In a reactor, there isn't really that much fuel, and there are control rods to help regulate the amount of neutrinos bouncing around.
In a bomb, a conventional explosive is used to compress the fissile material to reach critical mass, meaning there are so many uranium atoms in such
close proximity that the nuclear chain reaction is self sustaining and can not be stopped.
It's simply not possible to reach critical mass and have an atomic explosion with a reactor.
We can have, and already have had, explosions which release radioactive material into the atmosphere, but the blast itself is not a nuclear reaction.
In most cases it's a hydrogen based explosion as hydrogen is a byproduct as well as if pumps fail to move water over the rods they can boil the water
at such high temperatures that hydrogen splits off. When it recombines with oxygen it can be extremely explosive.
If you recall a week or two ago they were pumping in nitrogen, this was to keep a layer of nitrogen between the hydrogen and oxygen to avoid
edit on 13-4-2011 by phishyblankwaters because: (no reason given)