Can you solve the MAGNET RIDDLE? ft YouTube CEO Susan Wojcicki

If you put the two pieces close so they react but dont stick. Then you rotate one. If you rotate/spin the magnetic piece you will feel the change of the field (N and S strong, between not so strong). So you know you are rotating the magnet. If you spin the non-magnetic piece. You will feel that the magnetic force of the magnet remains more constant.