Desalination and Resonant Frequencies

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It may be difficult to visualize, but instead of having phosphors emit light, it would be to have then vibrate at a frequency that could repel salt ions. This is where using a voice coil instead of a cathode ray tube, multiple frequencies if needed, could be fed into the disc. And by building up several layers of phosphors, inverted cones can be formed which would focus the vibration of the phosphors inward where water would flow through the cone. And since wear might be an issue, the same material used for membranes could be used to form a thin protective coating. http://www.hdtv.ca/hdtv_knowledgebase/television/crt.php