If you're going to ask about a picture it'd be courteous to actually post it instead of simply link it. Moreover, which pages in a book GB allows one to preview can change from time to time, so such hyperlinks are temperamental. @percusse: Why did you edit *out* the link? – 2011-11-08
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You are missing a verb in the question. Looks like if you pull the top loose end through the helix, you can rearrange to create a double helix. – 2011-11-08
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Sorry @anon . Looks like we have resonated for the image inclusion :) – 2011-11-08
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Did you get a loop of string and try for yourself? ;) – 2011-11-08
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Some [color](http://i.imgur.com/5TTwf.png) might help. Note the number of cross-overs between left and right side changes between the two. – 2011-11-08
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Ok, I know what the diagram means now. Thanks. – 2011-11-09
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What is the etiquette on what i should do now i have an answer. I can't accept an answer because technically (officially) I don't have one. – 2011-11-09
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You can post an answer to your own question. That way, if anybody else is having the same or similar problem, you will have helped them out. – 2014-07-21