This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of
mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of
Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join
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If someone has an photo of a helical phone cord, where the direction of twist reverses, that would be good, as it indicates the helix segments on both sides of a perversion, thereby showing a hemihelix with one perversion. --
65.94.171.206 (
talk) 05:41, 30 April 2014 (UTC)reply
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of
mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of
Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
If someone has an photo of a helical phone cord, where the direction of twist reverses, that would be good, as it indicates the helix segments on both sides of a perversion, thereby showing a hemihelix with one perversion. --
65.94.171.206 (
talk) 05:41, 30 April 2014 (UTC)reply
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