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Dancing Micro-Robots Waltz on a Pin's Head

coondoggie writes to mention that Duke University researchers have created micro-robots and made them dance to their tune. With dimensions measured in microns, these tiny bots were made to waltz to the music of Strauss on the head of a pin just one millimeter across. "In another sequence, the devices pivot in a precise fashion whenever their boom-like steering arms are drawn down to the surface by an electric charge. This response resembles the way dirt bikers turn by extending a boot heel, researchers said. The researchers said they have also been able to get five of the devices to group-maneuver in cooperation under the same control system.Known as microelectromechanical system (MEMS) microrobots, the devices are of suitable scale for Lilliputian tasks such as moving around the interiors of laboratories-on-a-chip."

89 comments

  1. How many robots can dance on the head of a pin? by ciaran.mchale · · Score: 5, Informative

    The researchers just have to call these micro robots "angels". That then will finally answer the age-old question.

    1. Re:How many robots can dance on the head of a pin? by Jeremiah+Cornelius · · Score: 0, Offtopic
      Ahhh...

      But do they want my red shoes?

      Oh, I used to be disgusted
      And now I try to be amused
      But since their wings have got rusted
      You know, the angels wanna wear my red shoes
      But when they told me 'bout their side of the bargain
      That's when I knew that I could not refuse
      And I won't get any older, 'cause the angels wanna wear my red shoes
      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
    2. Re:How many robots can dance on the head of a pin? by blue+l0g1c · · Score: 3, Insightful

      Ah, but how many pins can you fit on the head of an angel?

      Maybe Hellraiser was a fallen angel?

      This is totally getting modded off-topic. :/

    3. Re:How many robots can dance on the head of a pin? by HTH+NE1 · · Score: 1

      Zack: How many more of you people are coming here?
      Byron: How many angels can dance on the head of a pin? That question baffled religious thinkers for centuries, until someone finally hit upon the answer: How many angels can dance on the head of a pin? As many as want to. How many of my brother and sister telepaths are coming? As many as want to.

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    4. Re:How many robots can dance on the head of a pin? by Anonymous Coward · · Score: 0

      Did the micro-robot scream "Developers, developers, developers, developers" while monkey dancing on the pin?

    5. Re:How many robots can dance on the head of a pin? by Hal_Porter · · Score: 1

      Religion can ask about Gods and Angels. And science can make the angels. And if you're unlucky, Gods too...

      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
  2. Yes, but... by Sabz5150 · · Score: 0, Redundant

    Are they angels?

    --
    "Who modded this informative? Whoever it is must've been smokin' some of that martian pot!"
    1. Re:Yes, but... by Plazmid · · Score: 1

      No, they're tiny dancing robot overlords of doom who will dance into your brain and make you dance repetitively like some crappy animated gif.

    2. Re:Yes, but... by Sabz5150 · · Score: 1

      No, they're tiny dancing robot overlords of doom who will dance into your brain and make you dance repetitively like some crappy animated gif. So we finally reverse engineered the alien dancing gizmo.
      --
      "Who modded this informative? Whoever it is must've been smokin' some of that martian pot!"
  3. They can't hear the music by EmbeddedJanitor · · Score: 4, Interesting

    They're too small, relative to the wavelength, to hear. So how can they be dancing to it ?

    --
    Engineering is the art of compromise.
    1. Re:They can't hear the music by Anonymous Coward · · Score: 5, Informative

      They are not dancing in response to audio stimulation at all. They are dancing in response to voltage fluctuations in their "dance floor". Kind of like the duck that dances on top of an inverted kettle... it doesn't work if you forget to put the candle under the kettle!

    2. Re:They can't hear the music by fastest+fascist · · Score: 1

      Haven't you ever heard the phrase "feel the beat"?

    3. Re:They can't hear the music by Anonymous Coward · · Score: 2, Insightful

      also, no ears.

    4. Re:They can't hear the music by Anonymous Coward · · Score: 0

      They're too small, relative to the wavelength, to hear. So how can they be dancing to it ? A sound wave of sufficiently long wavelength just looks like a low-pressure system moving through the neighborhood, followed a "day" later by a high pressure one.
    5. Re:They can't hear the music by oddaddresstrap · · Score: 1

      They'll be dancing if the waltz is emanating from a thumpmobile.

    6. Re:They can't hear the music by Anonymous Coward · · Score: 0

      Wouldn't the duck just, like fly (or just waddle) off the kettle? I can't believe any live duck would put up with that for long, and dead ducks don't dance (the well-known "D4 rule" of the American Duck Marines).

    7. Re:They can't hear the music by alx5000 · · Score: 1

      +1 Sadism

      --
      My 0.02 cents
    8. Re:They can't hear the music by Sabz5150 · · Score: 1

      Where do you think the world's smallest violin is when somebody's not playing "My Heart Cries for You"?

      --
      "Who modded this informative? Whoever it is must've been smokin' some of that martian pot!"
    9. Re:They can't hear the music by Anonymous Coward · · Score: 0

      Music comes from within ... or maybe it's BASIC.

    10. Re:They can't hear the music by Downside · · Score: 1

      Kind of like the duck that dances on top of an inverted kettle... it doesn't work if you forget to put the candle under the kettle!

      It actually works for most animals, although you need to scale up from kettle to tin roof to do it with a cat

      :)

    11. Re:They can't hear the music by britheartaaron · · Score: 1

      ah, this is such a good example.

  4. Grey goo.. by onion2k · · Score: 4, Funny

    So when the grey goo comes I'll finally be able to get a dance partner? Woo!

    I wonder if it puts out on the first date..

    1. Re:Grey goo.. by Chris+Burke · · Score: 1

      I wonder if it puts out on the first date..

      I think so, but when it whispers in your ear "Would you like to become one with me?" realize that it is talking in a much more literal sense than what you may have been expecting.

      --

      The enemies of Democracy are
    2. Re:Grey goo.. by n3tcat · · Score: 1

      But what if it just wants to "be friends"?

    3. Re:Grey goo.. by Missing_dc · · Score: 1

      Yes, in that once you start dancing with it, you're F**ked.

      --
      How amazed would you be to suddenly find that you just forgot what I wrote and you needed to reread my post.... again.
  5. From the 90s by Anonymous Coward · · Score: 0

    cough bullshit cough.

  6. How many... by EyelessFade · · Score: 1

    So how many micro robots can dance on the head of a pin?

    1. Re:How many... by Anonymous Coward · · Score: 0

      More to the point, how many pins actually have a head that is 1 millimetre in diameter? Seems like it wouldn't be very useful since you'd be almost as likely to push the head through your own skin as to push the point throughever what you intended to stab...

    2. Re:How many... by fastest+fascist · · Score: 1

      I think they mean the end with the bit of plastic, not the pointy end.

    3. Re:How many... by pablomme · · Score: 2, Informative

      A millimeter is larger than you think. Grab a ruler and check.

      --
      The state you are in while your HEAD is detached... - wait, what?
    4. Re:How many... by Anonymous Coward · · Score: 0

      That's what she said...

  7. technically by bornyesterday · · Score: 3, Interesting

    They simply twirled to the music. Waltzing is has a 1-2-3-pause beat pattern. Just because they danced TO a waltz does not mean that they waltzed.

    1. Re:technically by Gat0r30y · · Score: 1

      microrobots advance in steps only 10 to 20 billionths of a meter each, but repeated as often as 20,000 times a second. A 20kHz Dance beat! damn thats fast
      --
      Prediction: The real iPhone killer is going to be sex robots from Japan. Think about it.
    2. Re:technically by Anonymous Coward · · Score: 0

      They simply twirled to the music. Waltzing is has a 1-2-3-pause beat pattern. Just because they danced TO a waltz does not mean that they waltzed. You are confusing traditional waltz, called viennese waltz today, with the slow waltz.

      Viennese waltz does not have the same pronounced rise-to-pause lilt of the slow waltz, instead it is a much more continuous movement.

      Strauss wrote viennese waltzes (the only kind popular in his day), not slow waltzes. If that's the music being used, then that's the dance being done.

    3. Re:technically by Anonymous Coward · · Score: 0

      Hmm... somebody that knows how to dance and actually has a sense of rhythm... are you sure you're not on the wrong message board?

    4. Re:technically by Hashi+Lebwohl · · Score: 1

      As long as they don't start doing the chicken dance, I'm happy.

      --
      I'm in to sadism, bestiality and necrophilia. Am I flogging a dead horse?
    5. Re:technically by Titoxd · · Score: 1

      The most pronounced difference between English (a.k.a. slow) and Viennese Waltzes are in speed. English has 28-30 mpm (measures per minute), while Viennese has 58-60 mpm, per IDSF tempo regulations.

  8. Where's the movie of the waltz on a pin's head? by heroine · · Score: 5, Interesting

    The blogger keeps referring to dancing robots, links to a home video of an amateur recital of something, links to some robot videos from years ago, but nothing here showing robots dancing a waltz on a pin's head.

    1. Re:Where's the movie of the waltz on a pin's head? by Anonymous Coward · · Score: 0
      Here are several videos, plus pictures in PDFs of papers:

      The videos are also on Youtube:

      http://www.cs.duke.edu/donaldlab/research_mems.php

  9. is it me, or is it materializing? by Bananatree3 · · Score: 3, Interesting
    Now we have micron sized robots. Just last week we had announcement of a robotic arm within spitting distance of human dexterity. We have airplane-converts to car almost here for the consumer. An electric car that can get as much mileage as a gas car and still do freeway speeds (Tesla Roadster). We've got plugin hybrids within a year or two at most hitting the high end consumer market (commercial plugins), that will drop gas consumption at large scales.

    We live in exciting times.

    1. Re:is it me, or is it materializing? by bloodninja · · Score: 2, Insightful

      We live in exciting times. So did the residents of Nagasaki.
      --
      Lock the wife and the dog in the boot of the car.
      Return one hour later.
      Who's happy to see you?
    2. Re:is it me, or is it materializing? by zaxus · · Score: 1

      We live in exciting times. So did the residents of Nagasaki. Gems like this are what keep me reading Slashdot. You owe me a new keyboard. :-)
      --
      /. zen: Imagine a Beowulf cluster of Beowulf clusters...
  10. sure, they're expensive. by Bananatree3 · · Score: 1

    I should note that though a LOT of the things I'm talking about above are prohibitively expensive for most people, the very fact that they are coming to market at ALL is just cool.

    1. Re:sure, they're expensive. by aurispector · · Score: 1

      We also have an increasingly panopticon society processed with facial recognition datamined by an increasingly fascistic corporate controlled world government. Welcome to the new milennium - exciting times indeed.

      I've heard a quote attributed to the ancient chinese: "May you live in interesting times". This was described as a curse.

      --
      I have mod points. The reign of terror begins now.
    2. Re:sure, they're expensive. by Anonymous Coward · · Score: 0
      I should note ....

      No, you shouldn't.

  11. Electron microscope? by Anonymous Coward · · Score: 0

    I have always wondered, how do scientists see something so small. A friend asked me the other day how it is possible for scientists to see individual atoms. I know about electron microscopes, but are they powerful enough to view things at the atomic level?

    1. Re:Electron microscope? by Random+Destruction · · Score: 1

      Yep.

      "Image of surface reconstruction on a clean Gold (Au(100)) surface, as visualized using scanning tunneling microscopy. The individual atoms composing the material are visible. Surface reconstruction causes the surface atoms to deviate from the bulk crystal structure, and arrange in columns several atoms wide with regularly-spaced pits between them."

      Link to Image

      --
      :x
    2. Re:Electron microscope? by Anonymous Coward · · Score: 0

      Zoom in a little further and you can see the subatomic bees.

    3. Re:Electron microscope? by argent · · Score: 1

      Atomic Force Microscope.

      http://en.wikipedia.org/wiki/Atomic_force_microscope

      There are actually open source AFM projects, in this was the inspiration for part of Rebecca Ore's recent novel Time's Child.

    4. Re:Electron microscope? by ultrafunkula · · Score: 1

      I like the way the image has "No higher resolution available." underneath. Seems apt.

  12. This is the next lava lamp. by Plazmid · · Score: 1

    Just imagine it now, a lighted up microelectrode array with thousands of these things on it dancing to music, making trippy patterns of light on the walls. They'll probably show up at raves a couple years from now.

    1. Re:This is the next lava lamp. by radarsat1 · · Score: 1

      They'll probably show up at raves a couple years from now.
      .. or might have, had rave not died circa 1996. ;-)
    2. Re:This is the next lava lamp. by kaen · · Score: 1

      LOL, depends where you live. I think the peak of the rave scene was about 2000 where I live. After that it was mostly a heat score. Still some very underground parties from what I hear.

  13. How many? by Cycon · · Score: 0, Redundant
    So now we finally know how many micro robots can dance on the head of a pin.

    Take that, Aquinas.

    --
    Your Brain + EEG + LEGO Robots = Brainstorms
  14. Let's dance to the Thunder! by brunokummel · · Score: 3, Funny

    Too bad the little fellas couldn't actually "hear" the music...since the frequency we are able to hear would sound much more like a huge roar than music
    ....I guess they probably just were trying to run for cover from the thunderstorm... Can you imagine the damage a single drop of rain can make on a microrobot?

    Those scientists are just a bunch of insensitive clods.

    --
    What is best in life? To crush your enemies, to see them driven before you and to hear the lamentations of their women.
    1. Re:Let's dance to the Thunder! by Fumus · · Score: 1

      Can you imagine the damage a single drop of rain can make on a microrobot?
      None at all? It probably works the same way as ants aren't killed by drops of water. Nor by falling from a high building.
  15. I'm in the fab... by Anonymous Coward · · Score: 0

    ...where these were made right now!

    smif.lab.duke.edu

  16. Upgrade time... by Anonymous Coward · · Score: 0

    Great, now you'll have people asking whether science is merely an 'upgrade' of religion...

    1. Re:Upgrade time... by somersault · · Score: 1

      This kind of article makes me wonder.. is science merely an 'upgrade' of religion...?

      --
      which is totally what she said
    2. Re:Upgrade time... by Impy+the+Impiuos+Imp · · Score: 1

      Yes, in a manner of speaking.

      Religion is the evolved result of the associational human mind guessing at what's behind that wind, maybe it's something trying to get me, the way something behind that moving grass might be (a perfectly reasonable, and successful fear.)

      Thus placating such things involves incantations and hand movement (see Skinner's pidgeons, which repeated whatever movements they happened to be doing when a food pellet was dropped in, thus creating superstitious behavior in them.)

      A few games of "my god is tuffer than your god" later, we end up with one infinitely powerful god (tougher than all gods put together! Wait. There aren't even any other gods!) who is perfect and good.

      Roll in the fact that it allowed a very unproductive industry (masters of handwaving) to earn a living by convincing people their mental models of reality should include hiring them to placate the god(s), and mix it with the new theories of ethics as evolutionary products (feelings of righteousness, etc.) and bam!

      Boring church on Sundays.

      > Dancing Micro-Robots Waltz on a Pin's Head

      "Hey, some of them went over into the corner and are just sitting there. Once in awhile one walks towards the middle, towards another bot, but then turns around and scoots right back before it gets very far."

      "Oh, those are the micro-robot nerds."

      --
      (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
  17. I, for one, by oodaloop · · Score: 1, Redundant

    welcome our...pin-waltzing...micro-robot...ah, forget it.

    --
    Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    1. Re:I, for one, by jaminJay · · Score: 1

      What was that about MEMS?

      --
      Leela: "Is all the work done by children?" Alien: "No, not the whipping."
  18. Wha?! by Anonymous Coward · · Score: 0

    [quote]This response resembles the way dirt bikers turn by extending a boot heel, researchers said.[/quote]

    So, the micro-bots are weighting the front end, to get more traction from the front tire? The scientists do realize that the boot isn't supposed to touch the dirt, and absolutely should not be used as a pivot -- that's how legs get broken and knees never work properly again -- ask James "Bubba" Stewart.

    Bad analogy on their part. I believe aileron would have been a better example.

  19. Re:Nerds are great dancers by digitrev · · Score: 2, Insightful

    That depends on what type of dance. For a partnered dance with a clear lead and follow, I can imagine that nerds would be in high demand. For the gyrating bodies found in your typical club...methinks the answers do be a bit different.

    --
    Cynical Idealist
  20. Did you look at them? by msauve · · Score: 0, Redundant

    One only needs to change the question to: "How many angles can dance on the head of a pin?"

    --
    "National Security is the chief cause of national insecurity." - Celine's First Law
    1. Re:Did you look at them? by Anonymous Coward · · Score: 0

      If the angle is between 0 and pi/2, about 10 angles can dance simultaneously. If the angle is between pi/2 and pi, less than four. Other angles are too fat to dance.

  21. Where's the story? by AlgorithMan · · Score: 3, Insightful

    Maybe I'm just too tired, but I only find sketches and texts via that link... no video, not even a single photo... I have seen nothing there that gives any indication that these robots actually exist

    so now "stuff that matters" includes people saying they did something?

    --
    The MAFIAA is a bunch of mindless jerks who will be the first up against the wall when the revolution comes
  22. Embedded video by Unique2 · · Score: 1

    .

    (lameness filter)

    --
    No trees were harmed in the posting of this message. However, a great number of electrons were terribly inconvenienced.
  23. Yeah right- whatever by rts008 · · Score: 1

    When will it be ported to DDR?
    Get on with your lives, nothing to see here!

    --
    Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
  24. Earth calling radarsat! by Anonymous Coward · · Score: 0

    There aren't any fewer raves than there were in 1996... we've just stopped telling you where they are!

  25. W. T. F. by apodyopsis · · Score: 1

    Fuck me.

    I was sitting here the other week thinking to my self that I was glad that the scientific community was doing all it could to advance our lifespans, save the bananas and the bees, fix the climate and make the Earth a better place.

    Now I find that they are making dancing robots. Dancing fucking robots. Bloody hell, what a simply splendid use of their budget that is.

    Please tell me that this will, in some small fashion, benefit mankind as a whole or I might have to be rather depressed.

    Hrrrmph.

    1. Re:W. T. F. by Free+the+Cowards · · Score: 1

      What exactly do you do to benefit mankind as a whole, besides displaying your obviously monstrous intellect on slashdot?

      --
      If you mod me Overrated, you are admitting that you have no penis.
  26. Micro-Robot... by rakzor · · Score: 2, Funny

    Better hope it doesn't fall off the pin head.

    --
    -Nemo me impune lacessit-
  27. what about any angels that were there first. by John+Sokol · · Score: 1


    http://en.wikipedia.org/wiki/How_many_angels_can_stand_on_the_head_of_a_pin%3F
    But I guess the first poster already pointed that one out.

    I am just wondering what the heck is the point of this, these are not robots, are not dancing and are not on a pin. Or am I missing something here.

    Just some schmuck trying to grab headlines with a cute press release and succeeded, my goodness even Slashdot fell for it.

    I'd bet it will be all over the new on TV tonight though, worse yet my parent are going to be thinking of these little C3P0's with arms and legs doing waltz's and so with the other 95% of the viewers where the reality is more like they make some flecks of dust wiggle with a static charge.

    Then this guy a Duke gets grants for this retarted stuff, mean while other more deserving things don't get attention.

    (long rand deleted)

    --
    I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso
  28. I, for one welcome my tiny robot overlo by davidwr · · Score: 1

    *STOMP*

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
  29. next tv series ?!?! by txbean · · Score: 1

    Dancing with the Micro-Robots

  30. Mighty Morphing MotoCrossers? by jamrock · · Score: 1

    This response resembles the way dirt bikers turn by extending a boot heel, researchers said.
    IANADB (I am not a dirt biker), but the ones I've seen in action extend the entire boot, to say nothing of the foot and leg. Microscopic dancing robots are great and all, but I'm much more intrigued by the cool Transformers footwear that the researchers mentioned so casually in passing.
  31. 3/4 time by Anonymous Coward · · Score: 0

    ...but a waltz still technically must follow the 3/4 time signature, or else it aint't a freakin' waltz.

  32. Re:Nerds are great dancers by Titoxd · · Score: 1

    I'm not really sure what Neanderthal modded this down, but I'm foregoing use of my mod points to say that you are dead-on. In the college scene, many of the leaders are men in technical majors (engineering, computer science, material science, etc.) and there is a perennial shortage of leaders. So yes, nerds *are* actually fought over by cute girls. And the dedicated girls have this tendency to want to know how to lead, so that they can teach their friends to dance as well.

    Additionally, ballroom dancing is actually quite popular in nerdy schools. One of the largest dance competitions in the U.S. is held at MIT (yes, that MIT), and if our school could afford to go there, we would...

  33. Imagine a Beowulf cluster of these ... by RockDoctor · · Score: 1

    With dimensions measured in microns, these tiny bots were made to waltz to the music of Strauss on the head of a pin just one millimeter across.
    Maybe even a Beowulf cluster of these dancing on the head of a pin-striped suit dweller?
    --
    Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  34. Researchers are not bikers by phayes · · Score: 1

    In another sequence, the devices pivot in a precise fashion whenever their boom-like steering arms are drawn down to the surface by an electric charge. This response resembles the way dirt bikers turn by extending a boot heel, researchers said.
    Dirt bikers use their feet much as others bikers use their (slider protected) knees: for stabilisation & not as a point around which they pivot or to brake one side to change direction. This so called "resemblance" is entirely misleading.
    --
    Democracy is a sheep and two wolves deciding what to have for lunch. Freedom is a well armed sheep contesting the issue
  35. Silly robots -- by Alex+Belits · · Score: 1

    Waltz is for spaceships!

    Polka, on the other hand... Yes, THAT polka.

    --
    Contrary to the popular belief, there indeed is no God.
    1. Re:Silly robots -- by Aram+Fingal · · Score: 1

      Waltz is for spaceships!
      I guess you're referring to 2001 A Space Odyssey, whose theme is "The Blue Danube," which is a Strauss waltz. I followed the link on the article to see if that's the one they used but it isn't. They used "The Voice of Spring."
  36. Cover your ears!! by denton420 · · Score: 1

    Not only do I have to be afraid of spiders laying eggs on my brain, now I have to worry about robots taking over my skull.

  37. Pictures. . . by bplipschitz · · Score: 1

    or it didn't happen.