Childhood is often defined by the simple pleasures of play, and in the old city, that joy can be found in the bounce of a rubber ball. This article explores the role of bouncing balls in the lives of ...

On a sunny July day in 2005, a frog jumped out of a rain gutter to see an unexpected sight: an avalanche of thousands of colorful bouncy balls careening down a San Francisco street. Although San ...

[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 ...