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NEWSCIENCENEWSCIENCENEWSCIENCE Fig. 2 (Refer to legend in Fig. 1) the ball bearings which fit into the inverted Air Space cups. ; . B D D: Each of the 'D' magnets is attached to a a small aluminum inverted cone, 'L', which reaches from the magnet to the collar of the lower 'K' cone and the two 'H' cones. Each of the 'D' magnets, including the magnet inside the control mechanism, 'A', is identi- cal. E: Attached to the wall are two adjustable magnetic rings. The purpose of these rings is to hold the 'H' cones centred and at the tip of the ‘J’ small double-sided cones. F; Attached to the outer edge of the For better detail, visit the Project Magnet web page at http://www.cascadia-net.com/magnet/ a magnetic bearing. This is the hardest part wood base; (J) double-sided cones; (K) | moving cones 'H' are ring magnets at a 90- to accomplish. cone enclosures; and (L) inverted cones. degree angle to the 'G' magnets. Their pur- The start-up of the GMD is initiated by A: Inthe aluminum casing is the control _ pose is to support part of the weight of the lowering a magnet at the centre top of the mechanism. It is composed of a large bari- moving 'H' cones and to generate more shell, inside the shell towards the momen- um ferrite magnet that is raised or lowered opposing magnetic fields. Each cone, 'H' tarily magnetically-balanced moving _ by the use of a corkscrew-type device. The and 'K’, has its 'F' magnet aligned in the cones. Referring to Fig. 1, as the central aluminum casing is bolted to the upper same polarity. magnet, which opposes the one attached at body of the GMD. It should be noted that G: Attached at the extreme circumfer- the centre of the upper moving cone, is _ 1/2-inch spacers are utilised to allow for air ence of the moving cones, 'H’, are ring lowered inside the GMD, it forces the flow. The magnets used in the control magnets which are perpendicular to the 'G' upper cone to move sideways, shifting the mechanism are identical to all the 'D'-type ring magnet. They repel the field of the magnetic balance between the cones inside magnets in Figures | and 2. magnetic rings around the outer wall, 'E', the GMD. The cones stay offset to each B: Riveted to the collar of each cone isa of the GMD. This is to ensure that the 'H' other for a short while, and then plasma- ring of magnets. Each ring is composed of _ cones are kept in the centre at a proper dis- like energy starts to build up around the several individual magnets with all their tance. The distance between the 'E’ and 'G' GMD. The energy buildup creates a shift magnetic poles in the same direction, rings is determined by the strength of each of colour from red-orange to light blue and which creates the desired effect of oppos- _magnet's magnetic field. Here it should be then white. Following this effect, the ing magnetic fields. The purpose of the noted that all spacing arrangements are GMD starts to lose weight and has an _ configuration of these rings is to minimise _ based on magnet field strength. upper lift in a greater ratio than its total _ the physical weight of the moving cones, H: The two cones are identical to the 'K’ weight. 'H’. cones except that attached to the outer cir- The GMD is composed of 12 major C: Next to the collar, attached to the cumference of each cone is a ring magnet, components (see Fig. 1): (A) the control wall of the moving cones are three pairs of 'G'. Note that it is important that the mechanism; (B) four individual rings of inverted aluminum cups set 120 degrees attached ring magnet, 'G’, is distanced far magnets; (C) inverted cups; (D) three mag- apart from each other. The dimensions of enough from the 'E' ring magnets so that nets attached to inverted cones; (E) wall all the inverted cups are determined by two _ their magnetic fields do not interfere with rings; (F) outer-edge rings; (G) outer-edge factors: (a) the distance between the 'E' each other. extended ring; (H) moving cones; (I) ply- and 'G' magnetic rings; and (b) the size of I: It is desirable to use plywood as a base, as it is easier to attach, move and Fig. 3 (Refer to legend in Fig. 1) For better detail, visit the Project Magnet web page at} remove parts as necessary. http://www.cascadia-net.com/magnet/ J: There are six small double-sided cones that sit in 12 cups. The size and design of the cups allow sideways and wobble movement of the 'H' cones and act as a locking mechanism to restrict the swaying movement of the 'H' cones. K: These two cones are mainly utilised to provide an enclosure, as well as for mag- netically clamping the moving 'H' cones. L: The small, inverted aluminum cones are designed to support and attach the 'D' magnets to the lower 'K' cones and the 'H' cones at the collar. It is important to have these cone arrangements to allow an air- flow path between the layers of the cones, cups. D: Each of the 'D' magnets is attached to a small aluminum inverted cone, 'L', which reaches from the magnet to the collar of the lower 'K' cone and the two 'H' cones. Each of the 'D' magnets, including the magnet inside the control mechanism, 'A', is identi- cal. E: Attached to the wall are two adjustable magnetic rings. The purpose of these rings is to hold the 'H' cones centred and at the tip of the ‘J’ small double-sided Fig. 3 (Refer to legend in Fig. 1 For better detail, visit the Project Magnet web page at 9. 3 (Refer to legend 91) http://www.cascadia-net.com/magnet/ 50 + NEXUS JUNE - JULY 1997 the ball bearings which fit into the inverted