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Consider this in relation to Arago's diskThe similarity between sheared rotation and so called electric rotation is weakly visible.One could say that rotating the disc created weak electromotive rotation.However Arago's rotation is associated with magnetic coupling. The magneto motive force is currently explained as electromotive force generating magneto motive force. This introduction of electromotive force is a dream of Faradays. It is possible to explain all phenomena in terms of magneto motive force.Arago's disk stands counter to the electric current interpretation based on the voltaic cell, which was agreed by committee to be generated by a chemical galvanic process!Volts thought differently. He theorised it was due to the " atmosphere" around metals, again a magnetic atmosphere is entirely feasible! For me the mechanical case for electromagnetic and Thermo antimagnetic behaviours is strong. Different frequencies and planes of rotation can account for distinct " electric " and "magnetic" behaviours especially in conjunction with radial variation.