[pianotech] vibration stuff

[Ron Nossaman]

If anyone's interested in exploring some interesting vibration 
fundamentals, not piano specific though some of it usefully applies, Dr 
Dan Russell has been a good source for a long time.


http://www.acs.psu.edu/drussell/demos.html

http://www.youtube.com/watch?v=_X72on6CSL0

http://www.youtube.com/user/drdanku

Ron N