Interesting Engineering on MSN

Scientific sorcery? Japan achieves near-frictionless levitation on macroscopic rotor

The new levitating rotor works because of its rotational symmetry. Unlike plates that move up and down in varying magnetic fields, the spinning rotor stays within a constant magnetic flux. This ...
The Why Files on MSN

How Ancient Builders May Have Used Sound to Levitate Megaliths

The Great Pyramid of Giza, Stonehenge, Baalbek, Nan Madol—civilizations separated by oceans all built with stones so massive ...