Called Multi, the technology (illustrated left and top right) has been developed by German-based ThyssenKrupp.
The firm believes Multi will transform how people move inside buildings. Each of the cabins are self-propelled using a multi-level brake system. They transfer power from the shaft to the cabin and back again using a magnetised coil running along the shaft. This repels magnets on the cabins and allows them to levitate above this so-called guideway. It will be tested in a tower in Rottweil, Germany, set to be completed in 2016. It is reminiscent of the floating glass elevator (bottom right) seen in the 1971 film Willy Wonka and the Chocolate Factory, based on Roald Dahl's book.
source: dailymail.com
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