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MIT Robot Walks On Water

An anonymous reader writes "Researchers at MIT have solved the mystery of how water striders propel themselves across water surfaces and in the process have created a robot called Robostrider that mimics the behavior. With cool stuff like this, it's no wonder MIT is number one in engineering."

32 of 283 comments (clear)

  1. Yes but... by egg+troll · · Score: 4, Funny

    Can it turn that water into wine?

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    1. Re:Yes but... by Anonymous Coward · · Score: 4, Funny

      No, its "time has not yet come" (John 2:4b)

    2. Re:Yes but... by Anonymous Coward · · Score: 5, Funny

      Or perhaps, being from MIT, it only thinks it walks on water!

    3. Re:Yes but... by Gzip+Christ · · Score: 4, Funny
      Can it turn that water into wine?
      No, but I bet it was given birth by a virgin.
  2. Point of note by NoTheory · · Score: 5, Interesting

    Actually there are several people who thing that MIT's direction in AI has gone seriously awry. Marvin Minsky (though somewhat stodgy), has pointed out that MIT's focus in robotics is no longer on figuring out how to make things that do stuff for people, but on subhuman gadgets.

    So, yeah they may be number one, but in a way, they've let down the old guard of AI researchers.

    Still, this is quite cool.

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    1. Re:Point of note by dollargonzo · · Score: 4, Insightful

      problem is, minsky spends too much time debunking good theory than creating new ones. let's take an example. minsky proved that 2-layer neural networks were not capable of generalizing to many tasks. the proof is indeed notable, but then came *gasp* three layer neural networks, and minsky's point was irrelevant. i think he is just pissed that his ideas were mostly abandoned by AI researchers.

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  3. Well, sure... by Faust7 · · Score: 4, Funny

    If the water's polluted enough, anyone can walk on it.

  4. I predict... by Anonvmous+Coward · · Score: 4, Funny

    ... somebody will soon use the word 'overlords', and it won't really be funny.

  5. Dupe by Saeger · · Score: 5, Informative
    This water strider story was posted two weeks ago, but because the way it was worded this time, the focus of the posts will probably be on robots (and dupe flaming) rather than the Christian Science Monitor being remarkably unbiased. :)

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  6. Re:Case of the Mondays by Saeger · · Score: 5, Informative
    Actually, it did. The 2nd link talked about the MIT strider bots.

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  7. Re:Eh?? by dollargonzo · · Score: 4, Informative

    it's no mystery as to how they stay afloat. the big question was how they propel themselves

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  8. Re:Eh?? by thelen · · Score: 4, Informative

    The question is about propulsion, not weight-to-surface tension ratios sufficient for flotation. This research gives a better explanation of the mechanism by which the water skimmers move with such great efficiency (namely by created subsurface vortices with their middle pair of legs) and puts to rest the notion that it is attributable to the waves themselves created by a rowing action.

  9. The real reason why by Catharz · · Score: 5, Funny

    MIT is number one in engineering.

    Robostrider is made out of a 7-Up can, stainless steel wire legs and an elastic band coupled to a pulley to power its middle legs.

    Too much 7-Up and not enough beer being consumed for it to be a fair contest. They should increase their beer consumption to that of other colleges and level the playing field.

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  10. very pc of them by jmarkantes · · Score: 5, Funny

    Can't upset the censors.

    J

  11. Re:Case of the Mondays by Saeger · · Score: 5, Funny
    Are you seriously suggesting that you actually expect us to read the articles!?

    Just the interesting ones. :)

    You can skip the SCO-soap-opera updates and other fluff, but make sure you keep up to date with the ROBOTS, man, or they'll take over!

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  12. I wonder ... by Anonymous Coward · · Score: 4, Funny

    If it can walk on water - does it run on linux?

  13. I bet it walks on Charles river by meshko · · Score: 4, Funny

    Charles river (the river that MIT stands on) is always covered by a film of oil which is approximately one inch thick. You don't have to be a freaking rocket scientist to build a robot which walks on *that*.

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    I passed the Turing test.
  14. Re:You make a good point, namely by SoupIsGoodFood_42 · · Score: 4, Insightful
    How the fuck is splitting an atom going to help anyone?

    You see, science is not about only making big breakthoughs on things in you direct field of interest. A lot of it is small discoveries, that are used down the road in ways that people didn't think of when they made the discovery.

  15. Re:You make a good point, namely by Fly · · Score: 4, Insightful

    I'm sure no one could possibly know yet. How is grinding little pieces of glass to play with light and images going to help anyone? (He writes while wearing corrective lenses.)

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  16. Re:Why does it even matter? by Fly · · Score: 4, Interesting

    It's much to early to tell how this will help us build better boats or water based technologies. If we already knew how to apply the technology, we wouldn't be researching to understand the science of what makes it work.

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  17. will scale, somewhat by rebelcool · · Score: 4, Interesting

    The scale of water bugs goes from .5" to 10", its more of a function of keeping the surface area of the 'legs' in proportion with the weight and balance of the rest of the body.

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  18. I don't care who your father is... by bstadil · · Score: 5, Funny

    Do not walk where I am fishing.

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  19. Re:Sure number one in engineering... by tapin · · Score: 4, Funny
    but dead last in babe-filled orgies!
    That's okay, they've got water striders gone wild! available on the "More pictures" page.
  20. Censored photos of waterstrider sex? by grinchmaster · · Score: 4, Insightful

    On the linked page http://www-math.mit.edu/%7Edhu/Striderweb/striderw eb.html Someone has blotted out the intimate details of the waterstriders mating ritual. Is he seriously worried about offending someone, or is he worried about hosting a porn site? Who says political correctness has gone wrong... This is just pathetic.

    1. Re:Censored photos of waterstrider sex? by Anonymous Coward · · Score: 5, Funny

      Yeah it is pathetic. Having said that, does anyone have the undoctored version, and if so could they email them to me at insex@hotmail.com?

      Please.

  21. Re:You make a good point, namely by marko123 · · Score: 4, Funny

    ...small discoveries, that are used down the road in ways that people didn't think of...

    Excellent point. Sex toys and porn were not on the minds of the engineers when they were developing their respective techn...

    Awwr, who the hell am I trying to kid?

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  22. Creepy... by MoeMoe · · Score: 5, Funny

    Robostrider is made out of a 7-Up can, stainless steel wire legs and an elastic band coupled to a pulley to power its middle legs.

    I'm not sure what would bother me more to see upclose in the pool, a Vietnamese Water Strider, or a 7-Up can with legs...

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  23. what's the research about again? by jonbrewer · · Score: 4, Interesting

    several people who thing that MIT's direction in AI has gone seriously awry

    What does this have to do with AI?

    The research reported on is primarily about fluid dynamics. Robostrider is a catchy thing they've created to bring attention to the important findings. In fact, seeing as the strider is powered by a rubber band, not only does it not have anything to do with AI, it has nothing to do with robotics either.

    This doesn't mean it's not wicked cool.

    For more cool (without downloading a video), check out david hu's beautiful strider pics.

  24. Only in Bree by FreakerSFX · · Score: 5, Funny

    Everywhere else it's known as RoboAragorn.

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  25. In other news... by nacturation · · Score: 4, Funny

    Researchers at MIT have solved the mystery of how teenage boys satisfy themselves several times daily and in the process have created a robot called Robostroker that mimics the behavior.

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  26. Re:Why does it even matter? by Austerity+Empowers · · Score: 4, Insightful

    It doesn't matter, I'd hire this person to the exclusion of his peers at MIT. Why? It's creative, I didn't think about it, and I can use someone whose brain works like that.

    I can hire coders & designers easily. They're a dime a dozen. I can hire GOOD -> excellent coders or designers more difficultly by talking to friends of friends etc, but they exist and are plentiful enough. To hire someone that will build a rediculous thing that no one has really seen before, carry that design through to completion, and make headlines...that person I'd pay a lot of money to. He'll make me filthy rich if I'm nice to him.

  27. Re:correction.. by cybermace5 · · Score: 4, Funny

    You do realize that the space program started with unmanned craft, then insects, perhaps mice, then on to monkeys, and then Purdue graduates....

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