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Power Generating Spacesuits

Posted by samzenpus on Wed Feb 14, 2007 10:14 PM
from the the-electric-slide dept.
Maggie McKee writes "Piezoelectric sensors could help power future space missions. Astronauts' spacesuits may one day be covered in motion-sensitive proteins that could generate power from the astronauts' movement, according to futuristic research being conducted by a new lab in Cambridge, Massachusetts, US. Such 'power skins' could also be used to coat future human bases on Mars, where they could produce energy from the Martian wind. Eventually, the biologically derived suits might even be able to heal themselves."
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[+] NASA Engineers Work on New Spacesuits 105 comments
NotCoward writes "In labs at Johnson Space Center, away from the buzz about NASA's new spaceship and its new missions to the moon and Mars, a group of engineers are plodding away at another piece of the puzzle: spacesuits. Astronaut apparel has evolved over the decades from Mercury's aluminum foil-looking outfits to the bulky, 275-pound whites now used on jaunts outside the space station. While it's too early in the process to know how the new space suits will look, the space agency is hoping to make new suits both high-tech and low-maintenance."
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  • by Anonymous Coward on Wednesday February 14 2007, @10:19PM (#18019498)
    Seeing you can't get energy for free, and you can't even break even, wouldn't this just add to the resistance one would need to overcome to move?
    • by Jeff Molby (906283) on Wednesday February 14 2007, @10:26PM (#18019540)
      Of course it would add resistance. Since we don't want their muscles atrophy, I would imagine the resistance is seen as a feature rather than a bug.
      • by ceoyoyo (59147) on Wednesday February 14 2007, @10:50PM (#18019700)
        Except that you don't really want them getting extra exercise while they're in their suits -- one of the big problems with space construction is that working in space suits is very tiring. The rest of the time it's not enough to exercise to prevent muscle atrophy... you also have to load your bones to prevent bone loss.
    • by EmbeddedJanitor (597831) on Wednesday February 14 2007, @11:14PM (#18019822)
      This means that the astronaut will have to work harder (consuming more fuel/oxygen, generating more waste heat that needs to be processed). A human working flat out is only good for a few hundred watts. In space that would be hard to achieve. Anyone who has tried doing hard physical work in weightlessness will tell you how difficult that is. I have not worked in space, but I have worked underwater which was pretty difficult.

      Sure this would give them a much needed work-out, but that is far better to do inside where there is better oxygen supply, waste heat/water processing etc.. Rather use an exercise bike driving a generator which is likely to be far more efficient.

      Basically this sounds far more like a solution looking for a problem that anything really useful.

      • Re: (Score:3, Insightful)

        A human working flat out is only good for a few hundred watts.

        My thoughts exactly. The amount of power possible is just minute - enough to run a few LED lights and maybe a micro-radio. (and then only as long as you don't broadcast)

        Whoopie!

        It's like the guy who wanted to generate power from the falling water in his rain gutters....
  • Power generating? (Score:3, Insightful)

    by Stormx2 (1003260) on Wednesday February 14 2007, @10:20PM (#18019506)
    What? The suits are powered by the astronauts' movement, and that energy is provided by food? It's more conserving energy than anything. If we could somehow train our astronauts not to play golf on missions, we could save billions on R&D.

    Anyway, I just love the capitalisation of "Could" in mid-sentence.
  • ...I'm sure all they want is more of their own personal energy dumped into flexing their suits...
  • Astronauts' spacesuits may one day be covered in motion-sensitive proteins that could generate power from the astronauts' movement ... Such 'power skins' could also be used to coat future human bases on Mars, where they could produce energy from the Martian wind.

    But what about producting power from the Astronauts' wind?
  • Astronauts covered in proteins! that sounds like it could be a new pay website!
  • This was a technology that appeared in KSR's Mars Trilogy [wikipedia.org] . Wonder where he got it from? (It's not an unobvious idea -- we've had piezoelectric buzzers for many years, and running them in reverse can't be too crazy an idea.)
  • by Anonymous Coward on Wednesday February 14 2007, @10:37PM (#18019612)
    "...Could ...may ... could .... could ... could .... might...."

    Every geek on /. could get laid this year, and womankind may decide that brilliance could be a more important attribute than charisma. We could end up seeing a world that could be different than it is. This might happen anytime now.
  • Why piezo-electric? (Score:5, Interesting)

    by 140Mandak262Jamuna (970587) on Wednesday February 14 2007, @10:39PM (#18019628) Journal
    Given that no machine has 100% efficiency, these generators cant produce more energy than what the astronauts muscles could deliver. So dont confuse these with generating power like in solar cells or nuclear reactors. But there is always need for electrical energy so they might come in handy. But why these piezo-electrics? I have seen WW-II era footage of soldiers ing tiny generators by hand or by legs to power their radio sets.

    The apocryphal story of NASA spending millions of dollars to invent a pressurized ball point pen that would work in zero gravity and USSR deciding to use a pencil comes to my mind.

    • Re: (Score:2, Insightful)

      by Anonymous Coward
      >The apocryphal story of NASA spending millions of dollars to invent a
      >pressurized ball point pen that would work in zero gravity and USSR
      >deciding to use a pencil comes to my mind.

      Every try sharpening a pencil in space? The bits of graphite and wood shavings floating around are quite annoying.
    • by SuperBanana (662181) on Wednesday February 14 2007, @11:32PM (#18019940)

      The apocryphal story of NASA spending millions of dollars to invent a pressurized ball point pen that would work in zero gravity and USSR deciding to use a pencil comes to my mind.

      The one that's a blatantly not true? I'm against space exploration for many reasons, but even I know this story is utter bullshit [snopes.com].

      1)Fisher developed the space pen without a dime from NASA, and sold them to NASA at a reasonable price.

      2)Both the US and USSR used pencils.

      3)Both stopped using them because the dust/filings/broken tips floating around were bad for people and equipment.

      Incidentally, I have a Fisher pen; it's the smallest one they make (I think), a two-piece unit where the cap flips around to make it a full-length pen. It's a great pocket pen; the ink seems to be quick-drying (left-handed people will appreciate this and know what I mean), not too pricey ($10 I think? Maybe $15?) small, always works, and with the cap off, it's a full-size writing implement and very sturdy when "assembled." Not like one of those cheesy telescoping jobbies that bend and are too thin to hold. An o-ring-like seal keeps the cap on firmly when stored and keeps the laundry detergent out (yes, proven more than once.)

      It's quick to whip out (cough) and always works, unlike half the pens at cashiers which a)can't be found and b)barely work. It also garners the occasional impressed comment. My only beef is that the clip came off after a month or so in my pocket- would have been nice if they had spot-welded it on instead of just press-fitting it.

      • by aztektum (170569) on Thursday February 15 2007, @01:11AM (#18020466)
        Type define:apocryphal and hit search. Unless you were suggesting it isn't strong enough word to illustrate your stance. In which case, "utter bullshit" definitely fits the bill.
      • Re: (Score:3, Informative)

        "I have seen WW-II era footage of soldiers ing tiny generators by hand or by legs to power their radio sets."

        It sounds like they are going for something that would require no additional effort from the astronauts.
        [snip]

        The problem is, they can't. You can't get something for nothing. If the suit generates electricity when the astronaut moves, then it will offer resistance to the astronaut's movement; that's basic conservation of energy. The question is, how *much* will it hamper the astronaut? If it's to

  • T-1000 (Score:3, Funny)

    by SeaFox (739806) on Wednesday February 14 2007, @10:56PM (#18019724)

    Eventually, the biologically derived suits might even be able to heal themselves.

    Allowing them to continue their pursuit of John Connor despite multiple shotgun hits.
  • by edwardpickman (965122) on Wednesday February 14 2007, @11:01PM (#18019754)
    Wouldn't it make more sense to send up a female mudwrestler greased rather than covered in protein? Seems like more power would be generated and selling the videos could generate much needed cash.
  • The guy patented the molecule. The one we all have in our ears. And he patented it. Did I mention he's got the actual patent on it?

    Sorry, got carried away a little. So, this guy, who actually patented the naturally occurring protein which generates electricity in response to vibration, and so presumably knows what he's talking about, has no earthly clue how this power could be utilized. What is the article about then, exactly? Is it to draw attention to an interesting peculiarity of some organic compound? T
  • The amount of energy will come from the wearer. Which means more food and oxygen.
    It's likely more efficient to simply have a small fuel cell.

    That's the problem with many "new energy sources" they aren't really sources.
  • There is a lot of complaining that this will make the suits harder to bend and a number of other non-sense.

    The point is that a lot of energy is already wasted by normal movement. It goes into things like crushing your shirt sleeves, friction, sound etc.

    You have to make the space suits out of something... it may as well be something that can recapture energy normally wasted in motion.

    Some have brought up the notion that these types of devices use more energy to make than they can capture. If it costs more energy to make the suits than they can generate... well that is irrelevant. The energy would be expended on Earth, so the mission gains some energy efficiency for "free." This becomes a consideration only if the suit has to be manufactured during the mission... perhaps as a replacement.

    Don't get me wrong... this is far from the primary way to get energy. Take the example from the article of using this to generate energy from the Martian wind. Instead we might use this "wind mill" technology. However, if you have wind buffeting a static structure, it makes some sense to capture some of that energy if (and that's a huge IF) you can do so just by changing the materials used on the exterior. It may make more sense to coat the windmills with this stuff, and build the shelters underground.