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Huygens' Clock Puzzle Solved

PhotoGuy writes "Okay, I haven't heard of this puzzle either until now, but it sounds like a fascinating phenomenon. According to this article:Huygens had two clocks side by side and he found that even when they began out of sync, they soon got into a rhythm where the pendulum on one moved as if it were a mirror image of the other.The article is pretty light on the explanation, noting only the conditions required (small relative mass of the pendulums [pendula?], relatively close speed of the clocks), and not really addressing the physics behind it. " There's a great site at Georgia Tech that explains the puzzle in more detail.

8 of 185 comments (clear)

  1. It's a sad day on /. by wondercat2 · · Score: 0, Offtopic

    When the first 5 posts on an article are all -1 or 0. *shrug* the trolls are alive and well...

    1. Re:It's a sad day on /. by dinodrac · · Score: 0, Offtopic

      /me puts up a don't feed the trolls sign :)

  2. Re:odds by yawnmoth · · Score: 0, Offtopic

    ugh - i've been using vbulletin too much!

  3. Re:wondering??? by jkrise · · Score: 0, Offtopic

    Still wondering what to do after solving all those puzzles? Locate bugs in Windows. That should take a few lifetimes, I guess. KRS

    --
    If you keep throwing chairs, one day you'll break windows....
  4. Same type of thing with fireflies by Enoch5:24 · · Score: 0, Offtopic
    I remember an article from Science News years ago that had a cover story about fireflies synchronizing themselves with each other. There was a picture of a tree with fireflies in it (on the cover), and the article told that if they stayed around each other long enough, they would all blink at the same frequency. I thought that that was a pretty neat thing at the time. I wonder if there's some underlying connection between Huygen's sympathetic oscillations and the firefly phenomenon?

    If anybody remembers the article and wants to let me know what issue it was, I can try looking it up. A search on their website produced no results, so I'm guessing that its pre-96.

    --
    "You seem like a decent fellow. I hate to die." - The Man in Black, from The Princess Bride
  5. Re:It's all you deserve by Alan+Partridge · · Score: 0, Offtopic

    what a load of crap - this place isn't a democracy and bandwidth is both finite AND costly. are you six years old?

    --
    That was classic intercourse!
  6. Re:odds by hrieke · · Score: 0, Offtopic

    Well there's always these two riddles:
    How much wood could a woodchuck chuck if a woodchuck could chuck wood.

    And

    How many licks does it take to get to the center of a Toosie Pop?

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    III.IIVIVIXIIVIVIIIVVIIIIXVIIIXIIIIIIIIVIIIIVVIIIV IIVIIIIIIVIII...
  7. Re:odds by Bob+McCown · · Score: 0, Offtopic
    How many licks does it take to get to the center of a Toosie Pop?

    But we already know this one, the Wise Old Owl showed us. It's three!

    One...two-hooo...three crunch three