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[Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks - Page 44  

post #431 of 2836
Quote:
Originally Posted by aweir View Post
what if we have multiple meltdowns?
I don't even....
Well no matter how many they have,, if they have a meltdown everywhere within about 10 miles will be uninhabitable for the next 50 years.
post #432 of 2836
Nuclear winter anybody?
[sarcasm]BREAKING NEWS: multiple meltdowns in Japan causes a nuclear winter..... global warming reversed!!![/sarcasm]

Perhaps we should discuss the possible consequences.
1. Multiple meltdowns = nuclear winter, definitely
2. A single meltdown could/would screw the west coast of N. America
post #433 of 2836
Reliable scientists say if the containment building explodes that means the containment vessel is releasing gasses. There is no other way you'd get hydrogen buildup.
Which means stuff has leaked out of the core.
Edited by aweir - 3/12/11 at 4:12pm
post #434 of 2836
Quote:
Originally Posted by xd_1771 View Post
Nuclear winter anybody?
[sarcasm]BREAKING NEWS: multiple meltdowns in Japan causes a nuclear winter..... global warming reversed!!![/sarcasm]

Perhaps we should discuss the possible consequences.
1. Multiple meltdowns = nuclear winter, definitely
2. A single meltdown could/would screw the west coast of N. America
Hell ya, we can start living out a real life metro 2033!

And as already said, it's not going to screw over the west coast. Even if you were to get some radiation it won't be enough to cause any truly major damage.
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post #435 of 2836
OMG its actually going to blow. im scared
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post #436 of 2836
"The number of people exposed to radiation near Fukushima No. 1 nuclear plant could reach 160"
Just to note people. this doesn't mean that they are in any kind of danger.


Quote:
Originally Posted by Lazloisdavrock View Post
You think there could be another explosion?
It's a guesswork. I would go for maybe or i don't believe it.



The primary containment of Fukushima I - 1 is still intact. It's the secondary containment that's gone.
There was some wondering about this few pages back.


Quote:
Originally Posted by Tizmo View Post
Just something I thought about, since they are using sea water to try and cool down the reactors, what happens if small pieces of debris come in contact? Surely they are using filters etc, but what about very small particles?
To simply say it:
That depris becomes radioactive.




And again, huge risks are still involved.
post #437 of 2836
Much misinformation going around about control rods and fuel plates. Control rods are made of hafnium, a fission poison. When they are inserted (via gravity + springs during a scram, or intentionally via control drives by the operator) the reactor shuts down due to negative reactivity. There is no such thing as a fuel rod. The uranium fuel is contained in alloyed plate layers. What happens during a partial meltdown is that one or more of these plates overheats and some of the fission fragments enter the cooling water. Since water is also the moderator, this is a bad thing as it feeds the thermal fission process. When this happens they manually add poison (boron-tetraflouride) to the cooling water to keep escaped fission fragments from having more thermal fission reaction (boron absorbs thermal neutrons much easier than uranium).
Edited by damric - 3/12/11 at 4:13pm
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post #438 of 2836
Thread Starter 
Quote:
Originally Posted by Tunapiano View Post
Well no matter how many they have,, if they have a meltdown everywhere within about 10 miles will be uninhabitable for the next 50 years.
It entirely depends on the scale. Look at Three Mile Island. The worst nuclear accident in US history and people are still living where they were decades later.
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post #439 of 2836
I like how when things happen like this everyone automatically becomes a scientist.
post #440 of 2836
Well since everyone is watching CNN, they just reported they are detecting 2 types of radiation outside the facility which is why everyone is assuming a meltdown is under way, the Japanese safety agency can't confirm if it has started.
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Overclock.net › Forums › Industry News › Technology and Science News › [Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks