Friday, June 30, 2017

Counting frequency ratio in a compound helix

The easiest way to count the frequency ratio in a compound helix is to count (starting from zero) the outward appearances of a single sub-strand in full major helix wavelength, and then subtract one for the counter-rotation effect of following the major helix.

This 2-ply, unwound from a 3x2 compound helix, exhibits a 3:1 frequency ratio.

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