Surprisingly cool thing

[fivemack]

http://fti.neep.wisc.edu/neep533/SPRING2004/lecture N .pdf

for N ranging from 1 to 44

is a lecture course from the University of Wisconsin, supposedly about future space exploration but rather more a fannish agglomeration of Cool Facts, given by Harrison Schmitt (Apollo 17 geologist).

There's about 100MB of it, since he's fairly liberal with the huge images; from what I've seen, it's something everyone setting a story in the near-future solar system needs to read. It's got lots of reasonably useful statistics all gathered together in the same place.

It's boosterish, though at least it pays some attention to economics (though it talks about resource depletion on Earth, which may cause james_nicoll to lose hair manually, it does so reasonably sanely); I suppose, once you've walked on the Moon, you're allowed to be boosterish.

Comments

[del-c.livejournal.com]

Nice table of energy units conversions, that lets me say I was unfair to imply in comments to James's torchships entry that a trip costing 500 million kWh at 7¢ a kWh would be $35M.

Why, that's a mere 294,000 barrels of oil, which at $50 a barrel, comes to just $15M.

(that's until the price gets to $100 a barrel)

Isn't it james_nicoll?

[james-nicoll.livejournal.com]

Not jdnicoll?

Re: Isn't it james_nicoll?

[fivemack.livejournal.com]

Fixed. Sorry.

Nifty

[james-nicoll.livejournal.com]

Any obvious way to strip out the visuals? I am on dial up and at 40kps, 100 meg will take about 3/4 an hour at best and perhaps much longer.

resource depletion

[james-nicoll.livejournal.com]

Am I that, um, focused on that subject?

It's not that I claim it can't happen (see Easter Island or Henderson Island for a How To), just that the particular cases tend to be poorly chosen.

Re: resource depletion

[fivemack.livejournal.com]

Well, the last five or six lectures are glaring moonbat advocacy of He3 mining on the Moon (despite a slide a dozen lectures earlier saying that the 3He/4He ratio in ocean-ridge basalt is 0.1 that of the lunar surface; however, I can't find a figure about how much helium there is in the basalt. Has to be pretty bloody scarce to make it worth mining 60ppm He regolith on the Moon instead, though).

This may be one of the situations where CD-writer plus Canada Post are the way to go; email me (tom@womack.net) your postal address and I'll drop a copy of the website in the post Wednesday morning.

Aw, maaaan.

[james-nicoll.livejournal.com]

Lunar 3He? Do people still fall for that nonsense? _Why_?

Re: Aw, maaaan.

[fivemack.livejournal.com]

At a very wild guess, it's people who saw what pull-out-all-the-stops engineering effort applied to the hard problem of putting men on the Moon and returning them safely to Earth was able to achieve in a decade, and can't convince themselves that fusion is intrinsically a harder problem.

I don't know whether fusion is intrinsically a harder problem.

My prejudices make me think that a working fusion reactor will resemble JET in the way that a Space Shuttle Main Engine resembles the engine of a WAC Corporal; given how expensive JET is already, it then seems reasonable to guess that the break-even point at which a Sufficiently Advanced fusion reactor produces electricity cheaper than current fission would involve a reactor larger than Kitchener and costing much more than total world wealth.

Also, I believe Schmitt is the person who discovered the orange soil which turned out to consist of glass beads with substantial adsorbed solar-wind 3He and 4He, so there may be a level of pet-project here.