Vortex Propulsion - With Visible Vortex

Vortex Experiment 2012-01-16 Around the fan is a swirl chamber. The air is circulating; as much air goes in as out. Whenever a flat surface comes near the swirl chamber, a pretty powerful vortex (tornado) settles in between. The air pressure inside a vortex is reduced. Both the swirl chamber and the surface are being pushed to each other, by the atmospheric pressure. See more at