gravity's harmonics

[John Verity]

interesting piece about the use of sound to figure out where exactly the 
V-2s were hitting London, in Scientific American:

http://www.sciam.com:80/1999/0899issue/0899connections.html


John W. Verity ... 140 Eighth Ave. 5R ... Brooklyn, NY ... 11215
           718.622.5680  ...  jverity at mindspring.com