[Tim] started by modeling the disco ball after a soccer ball with a mixture of pentagons and hexagons. Then it was off to the laser cutter to cut it out of 3mm plywood sheets. Once assembled ...

Maybe you've danced under a disco ball, or have spotted one in a ballroom, a nightclub, or even a gas station bathroom. The ball's array of tiny mirrors casts light all across the floor — an ...

A few months ago my roommate came home with a cantaloupe-size disco ball, placed it on a shelf near the window, and waited for the sun to shed flecks of confetti light around the living room.