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The reason the helix is so useful is that it is the shape you get when you trace out a circle at the same time as you move at a constant rate in the direction perpendicular to the plane of the circle. In other words, the usefulness of the helix comes down to that of the circle.
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www.maa.org/devlin/devlin_04_03.html
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Helix - Wikipedia, the free encyclopedia
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A helix (pl: helixes or helices ) is a special kind of space curve, i.e. a smooth curve in three-space. As a mental image of a helix one may take the spring (although the spring is not a curve, ...
en.wikipedia.org/wiki/Helix
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Helicobacter - Wikipedia, the free encyclopedia
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Helicobacter is a genus of Gram-negative bacteria possessing a characteristic helix shape. They were initially considered to be members of the Campylobacter genus, but since 1989 they have been g...
en.wikipedia.org/wiki/Helicobacter
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3 Wrap the paper template around the cylinder and the diagonal line will accurately create a helical line or "helix" on the surface ... If you want a "double start" helix, ie .two helical lines of the same pitch on the cylinder, mark out the template like this.
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home.vicnet.net.au/~pwguild/a-helix.htm
home.vicnet.net.au/~pwguild/a-helix.htm
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Researchers at Duke University's Pratt School of Engineering have uncovered a missing link in scientists' understanding of the physical forces that give DNA its famous double helix shape. ... Single strands of adenine coil in a fairly regular fashion to form a helix of their own, while thymine chains take on a more random shape.
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www.news-medical.net/?id=27575
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Technology news, views and jobs, Space dust in plasma organizes into double helix shape—like DNA ... The shape was held together by electromagnetic forces. It appeared to the scientists that the group of dust particles could reproduce, transferring the information acquired as to its helix shape into the next generation.
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www.itwire.com/content/view/14101/1066/
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Francis Crick, the man who discovered the double helix shape of DNA, died yesterday at the age of 88, in Hospital in San Diego, California, USA. He had had a long struggle with colon cancer. ... In 1953 they came up with the double-helix idea, shaped like a twisted ladder with paired nucleotides - what we now refer to as A, C,
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www.medicalnewstoday.com/articles/11422.php
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Washington, July 13 (ANI): Researchers at Duke University's Pratt School of Engineering have uncovered a missing link in scientists' understanding of the physical forces that give DNA its famous double helix shape. ... This is why DNA has its famous helix shape ; 7/13/2007 2:50:00 PM;
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www.southasianews.com/165282/This-is-why-DNA-has-its-fa...
www.southasianews.com/165282/This-is-why-DNA-has-its-famous-helix-shape-.htm
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Geometry Determines Preferred Helix Shape of Protein Spirals ... When the researchers calculated the shape that would result in just the right compromise between absolute compactness and maximum wiggle room, the result was a helix.
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www.science.psu.edu/journal/spr2001/Helix-Sp01.htm
www.science.psu.edu/journal/spr2001/Helix-Sp01.htm
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