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Usenet Newsgroups : rec.puzzles Hall of Fame


The rec.puzzles Hall of Fame is a compilation of over 500 of the most popular puzzles that have been posted and discussed in the rec.puzzles newsgroup. In most cases a detailed solution has been provided.

Many of these puzzles also appear in Braingle's own collection.

   
rec.puzzles
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FAQ
Hall of Fame
alt.brain.teasers
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FAQ
Categories : physics : magnets.p

You have two bars of iron.  One is magnetized along its length, the
other is not.  Without using any other instrument (thread, filings,
other magnets, etc.), find out which is which.


Solution

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