Magnet falls slowly to copper pipe

Note the magnets are not attracted to the copper. The physics of the process is explained briefly by thedevguy:

The movement of the magnet induces an electric current in the copper and with electric current comes a magnetic field, which attracts the magnet. The magnet doesn’t stick to the wall as it falls because the induced current, and its corresponding magnetic field, are perfectly distributed so that the magnet feels magnetic force equally from all sides. The magnetic field slows the magnet, but can’t stop its fall because if the magnet stopped moving, the induced electric field would go away and the magnet would start falling again.

[Via Neatorama]