Friday, June 4, 2010

A Simple Asymmetric Resonant Cavity - Greg Egan

"This web page analyses an extremely simple example of an asymmetric resonant cavity: a tapered quadrilateral in two dimensions. The analysis demonstrates that the net force on the cavity walls is zero, providing a simple counterexample to the absurd claim by the British engineer Roger Shawyer [2] that closing off the ends of a tapered waveguide will produce a cavity that can experience a net force from internal radiation pressure (a claim, sadly, much hyped by the magazine New Scientist [1])."

5 out of 5

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