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7.4.15

Perplexus Twist

Recently I got a Perplexus twist. It is like other perplexi but it has a new "twist".  You twist the knobs on the globe to line up the tracks. Here it is:



   Here is the original perplexus:


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Movie

Recently for a merit-badge pow-wow I made this movie:
https://drive.google.com/open?id=0B72-orj03eFMTVh2NTUwMjlDLVE&authuser=0
I hope you like it.
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