Build A 300-MPH Ping-Pong Cannon
Using air rifle technology A world-class table-tennis player can smash the ball at almost 70 miles per hour. From my experience, it is darn difficult to return the ball at such speeds. Imagine a shot delivered more than four times faster—could even the best player hit it? To find out, I designed a …
Noel Vengco Lantin flipped this story into Picks•3087d