[Jacob] has put a slightly new twist on the levitating ball trick with his ping-pong ball levitation machine. We’ve all seen magnetic levitation systems before. Here on Hackaday, [Caleb] built ...

Cup stacking is just one of the entertaining games that kids can play with simple plastic cups. Discover other plastic cup activities to try with your kids.

Infographic of the Day: Drawing in 3-D, With Ping-Pong Balls and an iPhone Ever wanted to play with your balls without even touching them? There's an app for that.

Wonderball is an interactive ping pong table which adds a digital ... and sensors which track the movements of the ball, allowing many different games to be played on it. Wonderball can be played ...

An IR sensor determines how far the ping-pong ball is from the edge of the beam. With everything wired to the Arduino, you have a pretty good testbed for a controller. If is common to “tune” a ...

You can see when they pick up the ball, it’s not easy,” Jane said ... indoor walking sessions or lively ping pong games. “It’s just so neat that there is a community that comes together ...