One of those intriguing curiosities that you have to fully explore before you understand it claims to float in mid air and defy gravity and if you watch the demonstration video online it is very convincing what39s the secret incredibly fine thread and a little practice the strong invisible thread hooks to the top of the holographic foil covered saucer and sticks behind your ear it may sound too obvious but it39s possible to spin the ufo on a table and with the help of some mislea