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no subject
Date: 2010-08-16 12:11 pm (UTC)no subject
Date: 2010-08-16 12:17 pm (UTC)Also, don't forget fusion power, which (as far as I'm aware) results in no radioactive waste.
I can never resist a Red Dward reference
Date: 2010-08-16 12:24 pm (UTC)1) It's not likely to exist in the next thirty years.
2) It's not likely to exist in the next thirty years.
I realise that this is technically only one drawback, but it's so large that I thought I'd mention it twice.
Re: I can never resist a Red Dward reference
Date: 2010-08-16 12:29 pm (UTC)Re: I can never resist a Red Dward reference
Date: 2010-08-16 12:37 pm (UTC)Re: I can never resist a Red Dward reference
Date: 2010-08-16 01:30 pm (UTC)Re: I can never resist a Red Dward reference
Date: 2010-08-16 01:39 pm (UTC)http://en.wikipedia.org/wiki/DEMO
Re: I can never resist a Red Dward reference
Date: 2010-08-16 08:14 pm (UTC)For example, we used to refer to rule-based systems as expert systems and treat them as AI magic. Nowadays, there are rule-based systems at the heart of many software projects - and noone thinks twice about them.
Re: I can never resist a Red Dward reference
Date: 2010-08-16 08:43 pm (UTC)Re: I can never resist a Red Dward reference
Date: 2010-08-18 02:19 pm (UTC)Re: I can never resist a Red Dward reference
Date: 2010-08-16 12:37 pm (UTC)no subject
Date: 2010-08-16 12:37 pm (UTC)But, compared to the fission byproducts, this is a drop in the ocean.
no subject
Date: 2010-08-16 12:18 pm (UTC)no subject
Date: 2010-08-16 12:19 pm (UTC)no subject
Date: 2010-08-16 12:20 pm (UTC)no subject
Date: 2010-08-16 12:20 pm (UTC)no subject
Date: 2010-08-16 12:50 pm (UTC)Nuclear power, on the other hand, has clearly killed people within living memory.
So if you don't think "AGW" is happening, then nuclear power is clearly scarier.
no subject
Date: 2010-08-16 12:52 pm (UTC)no subject
Date: 2010-08-16 12:55 pm (UTC)Because they're fairly common on a small scale.
Even the gulf oil spill was mostly about all that oil, the deaths were mentioned a few times then forgotten.
Whereas Chernobyl was global news, Iran building a reactor is global news (and, really, I can't see what the fuss about that is, if we're allowed them, and China's allowed them, why can't Iran have them?).
People think air travel is dangerous, but road travel isn't, despite the latter being a lot more lethal.
no subject
Date: 2010-08-16 12:53 pm (UTC)no subject
Date: 2010-08-16 12:58 pm (UTC)Ergo, it scares me and I'd rather try to stop it, and the opportunity cost represented by the resources spent on other things is an annoyance. Renewable power is probably a net good even if climate change science is wrong.
no subject
Date: 2010-08-16 12:53 pm (UTC)Edit: Of course, I had the link to the radioactive boar on my LJ in the last few weeks.
no subject
Date: 2010-08-16 01:01 pm (UTC)Apart from their deliberate positioning fairly close to where I grew up, the French don't seem to have had any problems with their stations, not major ones anyway.
no subject
Date: 2010-08-16 01:04 pm (UTC)no subject
Date: 2010-08-16 03:05 pm (UTC)The word "nuclear" is impressively scary in the former terms, including as it does the twin failure modes of earth-shattering kabooms that level a city and invisible death fields you don't even know you're walking into until it's far too late. (I realise the former is unlikely in terms of nuclear power in particular, but it will still be associated in people's minds with the word "nuclear".) Either of those on its own would be fairly scary; associating both with the same technology makes it entirely plausible that that technology would inspire a lot of gut-level fear.
no subject
Date: 2010-08-16 12:18 pm (UTC)no subject
Date: 2010-08-16 12:20 pm (UTC)no subject
Date: 2010-08-16 12:27 pm (UTC)no subject
Date: 2010-08-16 12:55 pm (UTC)no subject
Date: 2010-08-16 01:40 pm (UTC)It would be nice to think we could power everything with windmills and solar panels but that's about 30 years down the road.
no subject
Date: 2010-08-16 02:51 pm (UTC)I don't think that's down the road at all, honestly, if we're going to maintain a civilization. The problem with wind and solar is their unpredictability and uncontrollability... you could get a reasonably-accurate average over a big enough area, if you can solve the transport problem, or maybe store excess if superbatteries or other storage media finally prove out, but you can't turn up the Sun if you suddenly need more juice.
The absolute maximum you can get out of solar power is ~1kW/m^2 anyway, which assumes perfect conversion of all incoming sunlight into electricity and ignores cloud cover and dust. That's a hard limit; that's how brightly the Sun shines, less the amount soaked up by the atmosphere itself. If you knock off about 25% for inefficiencies (which is absurdly optimistic; current consumer-grade photovoltaics lose about 80%, while the best commercial and military pVs lose "only" about 75%) we can call it 1 horsepower per square meter.
A Kawasaki Ninja ZX-14 motorcycle has a 190hp engine. To power it with our magic photocells we need a square solar power array about 14m to a side. The bike itself is only 2m long... so that's one heckuva big parasol, and remember to never, every go into the shade and keep up with the wash-and-wax.
Just an illustration of the limits of the method that technology cannot surpass; solar needs huge land areas to generate power at the levels we take for granted today. Relying on it (and wind, though the math on that is far more fraught) would lead to a huge drop in standard of living even if we increase efficiencies to as-yet unattained levels.
-- Steve thinks we'll need throttleable power supplies to make up the gap for a lot longer than 30 years, and maybe indefinitely.
no subject
Date: 2010-08-16 03:12 pm (UTC)Global Warming isn't a particularly scary thing either. It is almost certainly happening - I'm not one of those people who deny its existence. How much is down to human activity and how much is due to natural climate cycles, remains to be seen. I suspect it is a bit of both, and I expect science will debate the relative contribution for many years to come (I'm not a climatologist so will leave that to the experts). As the climate changes, no doubt things will change here on planet earth. Water levels and weather patterns will change. No doubt some species will become extinct and others will appear to take their place. But life will go on. And most likely human life will go on as well. We may have to adapt somewhat, but it will go on (although possibly not in Holland).