The Speed(s) of a Wave Posted on: August 19, 2009 10:00 AM, by Matt Springer from Built on Facts http://scienceblogs.com/builtonfacts/2009/08/the_speeds_of_a_wave.php   All right, the answer to yesterday's question about the maximum speed of a stadium wave, as many commenters rightly said, is "as fast as you want." The comments went into some depth on this, and I like t…