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Old 11-09-2012, 07:28 AM   #5
Irvin
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Join Date: Mar 2007
Location: Marietta, Ga
Posts: 10,672
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There are diablos and diabolos.

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

If the tension on both sides of the diablo / diabolo weren't the same the string would spin around the 'device.'
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