Buy a piezo buzzer from the shack, hook it up to a battery using 3 or 4
feet of wire. Use the wire as a tether and swing it around over your head
with the buzzer running.
--
James Bradford Shue jshue@comp.uark.edu
University of Arkansas Voice phone:(501) 575-6059
Physics Lab/Demo Curator FAX Number: (501) 575-4580
WWW Page http://comp.uark.edu/~jshue