Shake a metal plate covered in sand at certain frequencies and intricate patterns mysteriously appear. Jon Jacobsen, a mathematician at Harvey... Vibrations Visualized With Sand And Sound Shake a ...

Most speaker enclosures are made from wood, though that's not the only material being utilized by audio hardware makers – we've seen speakers made from concrete, for example, and the many portable ...

(CBS News) For our final lesson on a day focused on all things (kind of, sort of) educational, we have the latest from a man who has managed to make us ponder a few times in the past if there might be ...