Stressed-out scientists can now relax with the Sandpendel, a mashup Zen sand-garden/physics-experiment desktop toy. Designed by Jürg Näf, the Sandpendel is based on ...
Because a pendulum's oscillation frequency depends on its length, not its mass, you can use different colored bowling balls for a pretty effect. By Francie Diep Published Sep 8, 2014 7:20 PM EDT Add ...