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New nuclear fuel source would power human race until 5000AD

theregister.co.uk

11–20 of 114 posts

Re: New nuclear fuel source would power human race until 5000AD

#11
post #4

This idea only makes sense if the used-fuel disposal problem is resolved, and it is not at all resolved. It would be like claiming that the coal supply is unlimited, but without addressing the problem of emissions.

That was addressed, though a bit off-handedly. The given time estimate assumes reprocessing. With sufficiently good reprocessing, there is no used fuel; there's just inert end-chain fission products that have had all the energy leached out of them.

Re: New nuclear fuel source would power human race until 5000AD

#13
post #6
post #4

This idea only makes sense if the used-fuel disposal problem is resolved, and it is not at all resolved. It would be like claiming that the coal supply is unlimited, but without addressing the problem of emissions.

The used-fuel problem is already solved. The solution is just effectively permanently blocked by NIMBY-ism.

What is the permanent solution?

Re: New nuclear fuel source would power human race until 5000AD

#14
post #9

"Since the Fukushima meltdown - as a result of which, not a single person is set to be measurably harmed by radiation - we know that nuclear power is safe." It seems to me like the primary danger from radiation like that leaked from Fukushima would be an increase in cancer. I think it's a little early to be claiming that Fukushima will cause no increase harm to humans. There is already evidence that it caused harm to…

One of the interesting things about the pale grass butterfly results is that until now scientists considered such insects to be fairly resistant to environmental radiation at a genetic level, notwithstanding their physical delicacy. There are some references to this in the Nature paper. Those findings must be very disturbing to prospective or recent parents that lived in the vicinity of the nuclear plant.

Re: New nuclear fuel source would power human race until 5000AD

#15
post #13
post #6

Earlier quoted context omitted.

The used-fuel problem is already solved. The solution is just effectively permanently blocked by NIMBY-ism.

What is the permanent solution?

There are several.

One is to dump it in the Mariana trench, let nature push it back down into the crust.

If we're foresighted, we'll bombard a crater in the moon with it. It won't go anywhere, and if we need to get it back, there it is.

Re: New nuclear fuel source would power human race until 5000AD

#17
I think right now our biggest problem is not energy sources but energy storage.

If we had an amazing vessel for energy storage, the sourcing problem would become relatively moot - there's so much available passive renewable energy, all we need to do is collect it.

Re: New nuclear fuel source would power human race until 5000AD

#18

The 5000AD date is admittedly just an estimate, but I am extremely sceptical of any such prediction. It just depends too much on what new uses for lots of energy we might come up with over the next thousand years. How many people will there be to use it? What standard of living will they demand? And that standard of living actually require more energy, or will other technological advances make us far more efficient w…

I don't think it's an unfair way to express the estimate though. Sure, it might not really last until 5000 AD, but to me it simply implies 3000 "years of fuel", with a "year of fuel" being how we use fuel now. If energy consumption goes up or down it doesn't really matter - I still have a sense of how significant this energy source is.

Yes, but growth sucks. Assuming 3000 years in the article means what you think it means, consider exponential and linear growth:

If energy usage doubles every 30 years (pulled that out of my ass, it's not likely the trend but divides nice into 3000) then it will last us less than 200 years

If energy usage grows linearly increasing by the current amount every 30 years (so in 2042 we are using double, and 2072 we are using triple) it's lasts us a bit over 400 years.

Re: New nuclear fuel source would power human race until 5000AD

#19
In the article linked to from this article:

A preliminary report by the UN's International Atomic Energy Agency has stated that the response to the Fukushima nuclear incident was "exemplary" and that nobody has been harmed by radiation exposure resulting from it.

That seems to contract what the Japanese government's own panel concluded:

http://www.bbc.co.uk/news/world-asia-18718057

Re: New nuclear fuel source would power human race until 5000AD

#20

I'm pro-nuclear, but I can't take this writer's hand-wavey dismissal of the risks seriously.

Indeed - same boat.

I wondered if Lewis Page's infamous and uniquely biased ramblings, particularly on any issues of nuclear power, US military or IP but in general any topic, would ever grace HN's front page. Guess that day is today...

I actually stopped reading The Register, before discovering Hacker News, just to get away from that "journalist" whose daily prolificness on that site alone was disturbing.

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