Set of 9 Vibrant Jumping Hopping Balls: experience endless fun and excitement with our set of 9 bouncy balls for kids that come in bright, attractive colors such as red, blue, green, pink ...

Sony spent over a million dollars to swarm SF streets with 250,000 bouncy balls, breaking windows and destroying cars in the process.

[Eric Archer] constructed an analog computer to model the physics of a bouncing ball. The core is a TL074 opamp that does all the integral math. He had no trouble finding descriptions of analog ...