Puzzle: Balance all of the nails on top of the standing nail

Posted by Chris Tingom on July 28, 2008 at 1:21 pm.

Background: This is a puzzle that was first shown to me in the mid 1980s and ever since then I’ve shown to friends and family. It’s tricky, but given 10 minutes you should be able to figure it out. There are seven nails that balance on top of the 8th nail, and you cannot use glue or any other device to balance.


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  • Comment posted by Alex on July 28, 2008 at 1:33 pm
    Rating: +1 votes
      
  • I went to the Ft. Lauderdale museum of science once and they had an exhibit set up that had this and several other simple spatial/mechanical puzzles. I had to do them all (because I was driven to, not any entrance requirement.) By the time I finished I had a crowd asking me how to do various puzzles.

  • Comment posted by Jared Gibbs on July 28, 2008 at 4:09 pm
    Rating: +0 votes
      
  • Turn the piece of wood with the nail upside down and then put the other nails on top of the wood. Correct?

  • Comment posted by Chris Tingom on July 28, 2008 at 4:55 pm
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  • Jared, that’s not the way I do it, but it would probably work. But for this example it’s not correct.

  • Comment posted by George on July 28, 2008 at 5:38 pm
    Rating: -1 votes
      
  • One of my favorite tricks. Don’t let the secret out unless they pay.

  • Comment posted by Alexander on July 28, 2008 at 7:40 pm
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  • yeah I’ve seen this done tons of times and with 10 nails as well. with the internet everyone can find out how to do it though

  • Comment posted by austin on July 29, 2008 at 9:42 am
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  • As I don’t have nails or a board i decided to google it. I was thinking along the same lines though i think i would have liked to try it out.

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