The most inefficient part of a gearing system is also its most vital: the teeth. While they allow the systems to, y'know, work, they also introduce vast quantities of frictional losses and, in turn, mechanical wear—so this new system uses magnetic levitation to do away with them.
via Gizmodo http://ift.tt/11TyDg6 http://ift.tt/11TvXyW
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