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quote:Originally posted by ukmickyAnd lastly the viscosity of the ferrofluid vastly increases as an magnetic field is applied so the ball would probably not be able to penetrate it or float to the surface.
quote:Originally posted by science_guymaybe if you did a normal fluid, without magnets, and the balls are passing through some sort of a funnel that will let the ball through one way, but will not let the water out. Any water spilled when the ball goes through can be collected in a drain and brought back to the top somehow. That requires no magnetism, and the only energy used to pump the spilled water could be generated by the wheel istelf, and excess energy will be used in whatever you are powering.
quote:And for the popping up, it could be easily solved by putting a board or plate at the top that will control the bounce with an angle.