This video is so amazing i am simply awestruck by this phenomena, but i have a few questions. What makes it so that it can float and stay in the same position? Could you do this with any magnet or does t have to be the special saphire with gold coating for protection like in the video? And would you be able to put the magnet on a 90° and spin it or do superconducting magnets not work like that. Thanks!