Il futuro secondo Apple

“This is an example of a new type of fractal concept using one of a great variety of settings that it’s capable of producing.
I decided to whip up a short music piece (using Garage Band) for the purpose of testing out how it reacted to being “powered” by some music.”
Via: George Toledo
“The moving magnet produces a current around the copper tube. This current loop sets up a magnetic field that opposes the change in the magnetic field, so the magnet falls more slowly.
Some of the magnet’s “lost” kinetic energy is returned to it when it exits, and its south(or N) pole sees another short-lived south pole. Some energy has gone into resistive heating of the tube.”