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Comment Re:Watched it, impressed! (Score 1) 379

If you want an in-universe explanation, I suppose some hand waving could link it to how the Doctor was able to regrow his hand in The Christmas Invasion. I suppose the writers could chalk it up to her being within 48 hours of her (re)generation cycle, so it was just superhealing rather then regeneration. Better explanation, though, is it's a TV show. The writers can make whatever they want happen, and it probably wasn't worth casting an extra actress for a 30 second scene.

Comment Re:Spoiler: Why it's dying; emits one last factoid (Score 2, Informative) 181

Weight. If you use nuclear power source, you've got to bring your fuel with you, where as with solar, the fuel is already packed away safely in the sun; you just need to bring a collector. Mars, unlike the outer planets, is still close enough to the sun that you get a reasonable amount of power from solar cells, if you have enough square footage, so solar wins the power/weight ratio contest. Besides, these things weren't built to survive the winter at all; the design requirements only called for three months.

Comment Re:fed up... (Score 5, Informative) 219

Well, in the Apollo days, urine was just dumped overboard. The service module's fuel cells made more then enough water as a byproduct of electrical production. Pretty much the same setup for the shuttle; in fact, the shuttle will typically offload extra water onto the station before departing. The station uses solar panels for electricity. Good news: no need to haul up liquid hydrogen and oxygen to supply electrical power. Bad news: no more free water source, especially once we discontinue the shuttle. Orion, Soyuz, Progress, ATV, and even SpaceX's Dragon all use solar power. This means we now need reclaim as much water from urine, rather then just dumping it, hence the toilet all of the sudden becomes a much more complex piece of equipment.

Comment Re:IANARS but... (Score 4, Informative) 414

The Orion escape system is similar to the Apollo setup; that is, a rocket mounted above the crew capsule is, in the event of an emergency, supposed to yank the capsule off with enough acceleration to get clear of any explosion. Of course, there's an upper limit of how much force you can apply without killing the crew, and on a normal launch, the escape system is just dead weight, despite the fact that it's more powerful then the Atlas rocket that put Mercury capsules into orbit, so there are constraints. Obligatory Wikipedia link.

Comment Aliens (Score 1) 98

I thought it was swallowed up by the Sycorax on Christmas two years ago.

(Yes, I know that The Christmas Invasion aired three years ago, but there was that one year time loss early in the first season of Doctor Who, between Rose and Aliens of London that hasn't really been accounted for since. Should actually put Torchwood ahead a year, too.)

Sci-Fi

Submission + - Rose Tyler returns to Doctor Who

An anonymous reader writes: Billie Piper has been confirmed for three episodes of series four in 2008the BBC has announced. This means that the Doctor will have a total of three companions in the next series: Tyler, "Runaway Bride" Donna, played by Catherine Tate, and, for the second half of the series, Martha, played by Freema Agyeman.
Wii

Submission + - New Wii Dev Tools in the Making

frenchy64 writes: "Looks like Nintendo are finally supporting Third-Party developers. From an article at The Wii Gamers, a new development application called NintendoWare is being developed for Wii Developers. NintendoWare emulates Wii hardware on a PC so that developers can sample parts of their games without having to load it to a Wii dev machine. The motion recognition could also see an upgrade, with a new predictive input tool that uses prior movement to predict your next motion, and a text-to-speech tool is also in the works."

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