Magnet + Copper Tube = Awesomeness. .. Any other electrical engineers or physicists here? BTW, Lenz's law and how the eddy currents induced in the copper piping produce a resistive effect on the magn Magnet + Copper Tube = Awesomeness Any other electrical engineers or physicists here? BTW Lenz's law and how the eddy currents induced in copper piping produce a resistive effect on magn