When a student spins this pipe, the pipe produces an audible tone similar to that produced by blowing across the mouth of a bottle.
Reviewed by: Ann Hanks
When a student spins this pipe, the pipe produces an audible tone similar to that produced by blowing across the mouth of a bottle.
When a student spins this pipe, the pipe produces an audible tone similar to that produced by blowing across the mouth of a bottle. As the pipe is spun faster, the resonant frequency increases. Five different frequencies can be achieved. One pipe included. Color may vary.