Electromagnetic vortex in electrolyte

This experiment shows that when electrons flow through an electrolyte (kitchen salt in water) in certain direction, they can be deflected by a magnetic field (the magnet below the central electrode). If this deflection is centrally symmetrical, it causes the solution to rotate. Most electric motors run on a similar principle. This way, one can make a vortex, or a "liquid motor". The central electrode is a zinc plated iron nail, the outer ring electrode is from tin plated copper wire. The material of electrodes and electrolyte properties are not critical. If you have enough electric current and a decent magnet, it will work. Even 1.5V cell may be used as a power source for this experiment. Reversing the polarity changes the direction of the rotation.
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