This experiment shows a complex interaction between magnetic fields. Steel dust is sprinkled on the right side of the cube while Aluminum dust is sprinkled on the left side. A magnet is placed on the left side forcing the fields to interact with the aluminum cloud and the steel dust cloud. The aluminum cloud acts as a nebulous Faraday Cage as it blocks and/or distorts the field lines near it and poses a partial barrier to the transport of the steel dust. The steel dust initially follows a complex path based on the viscous and gravitational influences combined with the initial complexity of the magnetic field before the effects of the aluminum cloud have been minimized.
Copyright 2007, www.videophysics.com, All Rights Reserved.