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Archive for October, 2007

The Wild and Green (Cheese)

Andrew Smith in The Grauniad channels Bruce Gagnon, fretting about mining the moon for He3 and the evil corporate profits that come with it.

(Well, that might come with it…someday…if He3 fusion can be made to work commercially…and if launch costs can be reduced to a point where retrieving the stuff is economically viable…points he gives short shrift amidst all the fretting.)

The comments are priceless — most defend the idea of mining the moon, but the real entertainment comes from one BabaYaga, who sings his/her luddite delight at the prospect of the inevitable “peak oil” petroapocalypse and civilization-ending econocataclysm like a broken record.

[hat tip: wretchard]

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Thank You, Captain Obvious

Metal suit not same for NASA’s J-2X engine- al.com

The J-2X is going beyond the needs of the Saturn moon rockets. To loft the Apollo capsule, the Saturn rocket’s upper stages had to generate 230,000 pounds of thrust.

“This one has to generate more than 290,000 pounds of thrust,” said Mike Kynard, J-2X program manager. “Not only is the J-2X going to be more powerful, it’s going to be different. Time has seen to that. This engine has its roots in Apollo, but we aren’t just lifting their work. It’s almost a new engine.

Duh. Isn’t that what we were all saying when NASA decided to quote-”resurrect”-unquote the J-2 instead of modifying the SSME as originally planned (or adapting another in-production LOx/LH2 engine)?

Here again, we see the “Stick” mentality at work: forego what seems to be a more reasonable solution involving enhanced existing hardware on the grounds that the enhancement will be “too expensive” and “take too much time”, in favor of using heritage technology in a new way…only to have that approach later fall prey to realities that should have been apparent from the start, resulting in the designing of hardware whose “heritage” is limited to a superficial resemblance.

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An Incomplete List of AGW Glom-Ons

It’s from almost a year ago, so who knows how the list has grown since: Got a problem? Blame global warming!.

When all you’ve got is an anti-technology, anti-capitalist, anti-human hammer…

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Australias in Space

As far as space settlements go, I think we could do much worse: Space pioneers look to Australia’s colonial past

While the images from popular movies, television shows and books tend to shape most people’s concept of space travel, the research team has now boldly gone where no researchers have gone before.

In an attempt to come up with scenarios for what they say is the inevitable colonisation of other worlds, they have analysed attitudes toward space exploration.

Dr Toni Johnson-Woods says she and her colleagues found there is a prevailing belief that other planets and their natural resources are there simply to be exploited.

“The focus is on exploitation of the minerals. Basically, it’s just Australia all over again,” she said.

“You go out like the British did to Australia, you take everything you bloody can out of a place, and then you ping off.”

She says the “spirit of exploration” that has marked the space age appears to have given way to thinking that is closer to that of pre-20th century colonialism.

“There’s also an idea that there’s nothing already on Mars, which I presume there isn’t, in the same way that Australia had that terra nullius, like there’s nothing in Australia, so, ‘we’re just going to go there, take what we need and leave’,” she said.

Huh…last time I checked, Australia wasn’t a mined-out, barren, uninhabited wasteland, it was a thriving, prosperous nation. Eh, what do I know…

It’s easy to dismiss Dr. Johnson-Woods’ findings as the same old anti-space luddism that’s been with us since hippies discovered the logical end of their fraternity of flower-power in knee-jerk technophobia and universal misanthropy. What makes it especially easy to dismiss is the lack of information presented on methodology — we’re told that her “team” has “analyzed attitudes towards space exploration”, but the how is left open. We’re left ignorant as to whether this research consisted of in-depth surveys of space settlement advocates, exhaustive analyses of scientific and engineering publications, or merely a gaggle of postmodernist literature criticism undergrads sitting around at a coffeehouse at UQ sharing their unexamined “conventional wisdom” about the ostensibly dire state of this planet and how it illustrates Man’s unfitness to join the cosmic community until he learns the proper care and feeding of celestial bodies. I suspect the “research” consisted more of the latter, given that Johnson-Woods’ academic background is non-scientific, and even there is not in one of the “soft” disciplines like sociology or anthropology which might offer some useful insights into the humanism of space settlement.

But let’s look at what else the article has to say:

The researchers concluded that the digging up and processing of minerals is likely to be a factor driving future planetary colonisation and Dr John Cokley says that is where Australia’s experiences could provide valuable lessons…

Dr Cokley says the social and environmental mistakes made during the opening up of Australia – and in particular its rugged mining regions – could serve as examples of how not to establish communities in space.

Oh…you mean…we might actually be capable of learning something from past mistakes and excesses, and we humans might not be hardwired to rape and pillage the environment for our own trivial amusement? Who knew? (Evidently not the “Trashy Fiction of the 19th Century” majors Dr. Johnson-Woods consulted for her study.)

Seriously, though, there is an important ethical and economic question here: have we learned from the excesses of past periods of colonization? I would say the answer is an obvious “yes” (after all, we’re reminded every damned day about the inescapable existential guilt of the West by our moral proctors in the mainstream media, and frequently get our noses rubbed in the “horrific legacy of colonialism” by those prim and earnest scholars of the international intelligentsia who in contrast see nothing wrong with representing or at the very least defending the world’s most thuggish dictatorships and shameless kleptocracies — how could we not have learned by now what those mistakes were, or the incessant nagging and whining that would be the price to pay were we to forget those lessons for an instant?), but that most of those lessons will be irrelevant to space settlement.

The primary lessons to be learned from past colonial periods can be lumped together under a single, general commandment: “Be nice to the natives“. The obvious and traditional aspect of this amounts to: Don’t kill or enslave the local sentients, and don’t convert them to your religion or culture against their will. But if there aren’t any local sentients, this aspect doesn’t apply, and need not be considered further until that distant day when we might again encounter members of an alien (in this case extraterrestrial) culture.

The more trendy application nowadays is: To hell with the sentients, don’t change the local natural environment in any way whatsoever. It would be accurate if somewhat flippant to also say this doesn’t apply to space settlement, because the concept of “natural environment” commonly used on Earth also doesn’t to our current knowledge apply in any meaningful way to any planet in the solar system (let alone asteroids or free space). So far as we know, there is no “nature” anywhere but on Earth, in the sense of the sum of the biological activity in a given area. Trivially, no biology = no nature.

“Ahah,” an environmentalist might say, “but it’s not only life that defines and environment”. And that is true — nature or “the environment” includes the geographical surroundings, including the non-living elements. Here, too, attitudes have changed over the past century. Where once the American West was considered a useless wasteland, it is now seen as a unique repository of beauty, valuable in itself. We have come to value the natural environment (living and nonliving elements alike) for aesthetic reasons, and have a better appreciation for what could be lost if we disregard the broader effects of our activities. Nowadays the balance is often tilted much too far towards the inviolability of nature, and as the history of protecting Yellowstone shows protection itself is sometimes as damaging as development, but the point is that we have indeed learned from past excesses to take the aesthetic effects on the environment into account. This is promising, because it is this aspect of the natural environment on other bodies that space settlement is most likely to affect.

So where does economics come into play? Aside from the aesthetics-based objections, the major environmental concerns with development on Earth are with the byproducts of industrial activity (pollution) and with the using up of certain limited resources (and especially the concentrated stores of those resources available in the natural environment). There is little if anything that we can use directly from the environment in supporting a space settlement, particularly on a planetary surface. There are no forests, no wild game, not even freely available water…or air, for that matter. As for mining in particular, the very different geological processes on the Moon and Mars will probably have done less to concentrate valuable elements in ore bodies rich enough to mine economically with technology commonly used on Earth. In short, everything required to live on another planet (or asteroid, or free space settlement) will have to be extracted or manufactured, if it isn’t simply imported from elsewhere. The costs involved will drive settlers to “everything but the oink” efficiency, and will spur the development of new technologies for increasing that efficiency (phytoextraction, for instance — it makes economic sense to use the bioaccumulation properties of certain plants for pollution remediation since you’re dealing there with a diffuse source, but not for “mining” of most elements since other, richer sources are available — but on the Moon or Mars, diffuse sources may be all you have to work with, which changes the economics). Given the lack of cheaper or richer alternatives readily available in the environment, every waste stream becomes a potential resource. To simply dump polluted water or industrial waste into a nearby crater would be irresponsible stewardship, it’s true, but even worse it would be a squandering of valuable resources vital to the settlement’s economic viability.

Clearly Dr. Johnson-Woods’ study doesn’t tell the whole story. Perhaps space settlement advocates do see a future of mining space…but they see that as a part — one part — of building a new branch of civilization, much as Australia has over the past two centuries become not a sterile desert of worked-out mineshafts and abandoned tailing piles but a self-sustaining, economically powerful branch of Western Civilization.

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Interesting Possibilities II

I speculated last month that PDAs and similar personal electronics might morph into more sophisticated sensor suites…well, it looks like Japanese company NTT DoCoMo has gone well beyond an art project with a greenie message, creating a prototype cellphone which can monitor your health.

Like Nike Inc.’s +Nike technology, the handset also keeps track of jogs, letting users set targets and keeping track of time, distance, and calories burnt – all while listening to music through headphones.

Hold the phone with outstretched arms, and it turns into a mini body fat calculator. A sensor at the top of the phone takes your pulse from your fingertip.

Worried about bad breath? Use the phone’s breathalyzer. After Tobita blew on a tiny hole on the side of the handset for about three seconds, the screen flashed, “Not too bad.”

The Wellness phone, developed by NTT DoCoMo and Mitsubishi Electric Corp., also asks questions to assesses stress levels and offers advice…

NTT DoCoMo is still testing some of the phone’s other technology, including a function to keep track of meals and calculate calorific intake, as well as a networking capacity to let users share data, Tobita said.

No word yet on what sort of liability insurance phone companies will require to cover the inevitable lawsuits when health problems go undiagnosed due to spotty network coverage and calls constantly being dropped.

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Where Do They Get This Stuff?

Once again, I’m amused by the inaccuracies in reporting on Orion, looking as I do from the inside out. This post at nasaspaceflight.com gets a lot of things right, I’ll give them credit for that, but there are some glaring errors as well. Here’s two:

  • “The process is being carried out on the Orion 607 – the latest version of the vehicle”. Nope…there is no “Orion 607″ (yet). I keep seeing this number in forums and blogs and the like, but the current working configuration is either the ZBV or the CEV606B, depending on how you look at it (exactly what constitutes which has been the subject of a number of meetings in the past two weeks — in practical effect, the two are parallel configurations which will merge in the near future to become the CEV607 point-of-departure baseline after November 15).

  • The graphic accompanying the post is not the “mid design cycle Orion 607″ (by definition, since 607 does not yet exist), and isn’t even the CEV606B or ZBV — there’s a number of strange items on the backshell whose size, shape, and location don’t correspond to any hardware that I know about, and there are three yaw thrusters rather than two. Plus, it’s hard to tell, but it appears to include a LIDS and ATLAS, which wouldn’t be included if this were indeed the (ZBV-derived) CEV607, barring a later buyback of the LIDS docking mechanism.

Amusing. And I’m sure based on past experience that someone will be along shortly to tell me that I’m the one who doesn’t know anything about Orion.

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Fifty Years Ago Today

Alan Boyle and his readers remember their memories of the event.

Physics Today looks at and links to the history of the Sputnik launch and it’s aftereffects.

David Pescovitz excerpts Arthur C. Clarke’s reaction to the event from an interview in the October IEEE Spectrum.

Republican Congressman John Culberson (TX-7) blogs about the forgotten lesson of Sputnik, while Democrat Senator and Presidential candidate Hillary Clinton (NY) uses the anniversary to pitch a science policy long on platitudes and short on substance.

Larry Abramson at NPR recounts how Sputnik spurred a much-needed revival in science education in America, and Rep. Vernon Ehlers (R-MI) uses the occasion to look at new federal education initiatives, while Gerald Bracey at HuffPo tut-tuts over how the American “failure” Sputnik represented was turned into an unfair critique of the U.S. public educational system which scars its reputation to this day.

Sputnikmania! — cool clips from what looks like a cool documentary. The John Glenn clip is bizarrely funny, but the director’s commentary makes me wonder about the political slant of the finished product.

And of course, now the truth can be told.

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Fifty Years Going in Circles

Rand Simberg considers the unfortunate consequences of Sputnik.

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Doing Something Useful

For all the (often legitimate) grief NASA gets, here at least is one thing it’s doing that’s useful in a “NACA airfoil” basic R&D way: NASA To Accelerate Space Nuclear Power:

NASA’s objective will be to use nuclear power much more frequently to open previously isolated areas of the solar system for robotic exploration as early as 2013, Aviation Week reports. NASA is moving quickly to make space nuclear power, and eventually nuclear propulsion, an inherent design element in near term, medium cost planetary missions.

This has come about with development progress in closed-loop Stirling cycle nuclear power systems, which are four times as powerful as the radioisotope thermoelectric generators (RTGs) used on past missions.

Alan Stern, who heads NASA science programs, is anxious to exploit this maturing technology for robotic exploration, and he wants to move fast. Initial proposals for Discovery and Mars Scout missions that would use Stirling closed-loop nuclear systems are due at NASA headquarters by Nov. 30.

While I’d prefer on principle that this sort of thing be done by private entities, jumpstarting a useful new technology and demonstrating it on ambitious science missions is at least giving us something useful (flight-proven simple nuclear power systems, plus the resulting science data) for a portion of the taxpayer money spent on the agency.

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Number 23

The latest Carnival of Space — #23 — is up at advanced nanotechnology.

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