3 ms·Magnetic levitation and ferrofluid40 points by RiderOfGiraffes 16y agomih 16y agoIf you want to get an idea of how powerful Neodymium magnets can be take a look at this http://www.youtube.com/watch?v=XVv8qWZ8xzw http://www.youtube.com/watch?v=XVv8qWZ8xzw