Oscillations and Waves > Instruments > Strings DCS# 3D20.30
MOTION OF A CELLO STRING
setup with camera and strobe.
APPARATUS
bar with cello string, pulley and clamp 202-06-D
   or student volunteer cello player (who will need an armless chair)
29 lb. weight 202-04-E
cello bow 202-06-D
strobe light
 202-17-D
camera
 202-09-C

DESCRIPTION
The motion of the bowed string is made visible with the use of the strobe light.  The strobe frequency should be close to but not identical to the cello string frequency (73.4 Hz).