Ping-pong balls have many uses: apart from playing table tennis, they have been used for countless art projects, science experiments, and even to raise ships from the bottom of the ocean. As it turns ...

A few years ago [Brian McCafferty] created a nice big RGB LED panel in a poster frame that aimed to be easy to move, program, and display. We’d like to draw particular attention to one of his ...

Would we be satisfied with only a simple hours-and-minutes display, or should we be thinking bigger and bolder? I’m not sure if my so-called chum James “Chewy” Vroman is my friend or my foe. I used to ...