Pop-Sci Core77 Design Challenge/ Description HUMAN POWERED 10/20/03

Description of Design

Handy Drum Everybody can clap his hands, everybody can play Handy Drum. Clapping is a natural movement that gives rhythm and joy, so why don't multiply its sound and trasform it in a real instrument? Handy Drum could amplify the beat and change distorsion by turning a ring, which can change the wave length. Some guys could setup different distortions to create a base for freestyle or just to have fun. The object could have self-made power supply generated by the movement of the arms.