Ning Li

According to Wikipedia:

Ning Li is an American scientist best known for her controversial claims about anti-gravity devices. She previously worked at the University of Alabama, but left to form her own company AC gravity LLD.[1] According to Li, rotating ions create a gravitomagnetic field perpendicular to their spin axis. If a large number of ions could be aligned, (in a Bose-Einstein condensate) the resulting effect would be a very strong gravitomagnetic field producing a strong repulsive force. The alignment may be possible by trapping superconductor ions in a lattice structure in a high-temperature superconducting disc. The current whereabouts of Dr Ning Li is still unknown.