How to hallucinate with ping-pong balls and a radio

By at 1:41 pm Monday, Jan 12

200901121339

The Boston Globe kindly shows us how to hallucinate using ping pong balls and a radio, as well as other fun perceptual tricks. How to hallucinate with ping-pong balls and a radio

Previously:

Mark Frauenfelder

My latest book, Made by Hand, now in paperback. Follow me on Twitter.

Where not otherwise specified, this work is licensed under a Creative Commons License permitting non-commercial sharing with attribution. Boing Boing is a trademark of Happy Mutants LLC in the United States and other countries.