Abstract: A fluid treatment system for changing the rates of growth of certain crystals and other solids formed within a fluid is disclosed herein. The apparatus includes a variable speed motor having a shaft, and a wheel assembly mounted on the shaft. The wheel assembly includes two circular ferro-magnetic disks separated from each other on the shaft a pre-determined distance to form a gap, and a ferro-magnetic spacer member concentrically arranged about the shaft and located in the gap between the disks. An array of magnets is concentrically arranged in a circular pattern about the shaft on the inner surface of each of the disks with the polarity of the inner pole faces of the magnets on one of the disks being the same as each other and the polarity of the inner pole faces of the magnets on the other of the disks being the same as each other but opposite to the polarity of the inner pole faces of said magnets on the one disk.

Abstract: A sailing-multihull hull shape is disclosed which is designed to produce hydrodynamic lift in addition to static buoyant displacement lift. The dynamic lift is generated in direct proportion to the horizontal surface area times the square of the velocity of this surface through the water. High-lift, relatively low drag horizontal surface area is provided by a series of horizontal steps on V-shaped amas (sponsons or pontoons) and preferably on the center hull, if any. The width of the steps preferably increases from the keel up, so that the widest is nearest the deck. To reduce drag through wake induced turbulence, it is also preferred to rotate back into the basic V-hull shape so that at the stern there are no visible steps. The enhanced lift produced by the steps can significantly increase the stability and righting moment of the sailing-multihull, and allow a greater load carrying ability with less reduction of speed.

Abstract: A fluid treatment system .Iadd.and method .Iaddend.for changing the rates of growth of certain crystals and other solids formed within a fluid is disclosed herein. The apparatus includes a variable speed motor having a shaft, and a wheel assembly mounted on the shaft. The wheel assembly includes two circular ferro-magnetic disks separated from each other on the shaft a pre-determined distance to form a gap, and a ferro-magnetic spacer member concentrically arranged about the shaft and located in the gap between the disks. An array of magnets is concentrically arranged in a circular pattern about the shaft on the inner surface of each of the disks with the polarity of the inner pole faces of the magnets on one of the disks bang the same as each other and the polarity of the inner pole faces of the magnets on the other of the disks being the same as each other but opposite to the polarity of the inner pole faces of said magnets on the one disk.