Screwy symmetry revealed | Science News

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Screwy symmetry revealed

Math trick reverses spirals, providing new ways to explore materials

6:24pm, April 8, 2011

Physicists have put a new twist on the humble corkscrew. Just as a butterfly appears identical to its mirror image, objects made of structures that tilt, twist or spiral possess a symmetry now recognized for the first time.

The new discovery is based on a mathematical operation that transforms a clockwise helix into a counterclockwise one, or vice versa.

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