From: utzoo!decvax!harpo!seismo!hao!hplabs!sri-unix!BillW@SRI-KL
Newsgroups: net.physics
Title: faster than light.
Article-I.D.: sri-arpa.310
Posted: Sat Jan 22 18:34:00 1983
Received: Mon Jan 24 05:34:51 1983

From:  William "Chops" Westfield 

using wave partical duality (If I remember this correctly), the phase
velocity of the waveform  of a baseball is something like C^2/V...
Of course the signal, which is the group velocity of the wave packet,
turns out to be just V, the velocity of the baseball...

BillW