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View Full Version : Sound and geometry


Adrick
Tue Dec 30, 2003, 12:22 PM
from dsci4

http://coewww.rutgers.edu/~shinbrot/Patterns/UmbanhowarPhoto.jpg

A man by the name of Paul Umbanhowar did some interesting experiments at the University of Texas in the late 90's.

To paraphrase his findings, Umbanhowar placed tiny brass balls on a flat plate, than oscillated them with acoustic waves. As he increased the frequency of the tones, the balls started to organize themselves into patterns. At first the patterns resembled small atoms, then as he increased frequency they started to look like a complex molecule then at even higher frequency the balls started to form shapes like protozoan organisms.


http://www.physics.northwestern.edu/research/umban.html
http://coewww.rutgers.edu/~shinbrot/Patterns/PatternsMain.html
http://super.phys.northwestern.edu/~pbu/
http://oas.okstate.edu/ojas/mthra.htm#Fig7

http://oas.okstate.edu/ojas/mthra004.jpg