CIO SessionsVision Series on ZDNet
Most Popular White Papers
Technology Industry
Industry: Email Alert RSS FeedOdd shape
Science News, August 5, 2006 by Ellery Frahm
When I looked at the photo for "As waters part, polygons appear" (SN: 6/3/06, p. 348), I didn't see a "pentagonal shape" in the swirling water. I saw a sine wave, wrapped around a circle. I was immediately reminded of the Bohr--de Broglie model of electron orbits forming standing waves. Rather than swirling water and glycol forming "unexplained" polygons, isn't this simply a standing-wave phenomenon?
ELLERY FRAHM, MINNEAPOLIS, MINN.
Combinations of circles and standing sine waves might explain the observed shapes, agrees Tomas Bohr of the Technical University of Denmark. But his team has been unable to use the circle-sine wave model to explain how shapes vary as experimental parameters change.--P. WEISS
COPYRIGHT 2006 Science Service, Inc.
COPYRIGHT 2008 Gale, Cengage Learning
