A German industrial firm has created a cable-free elevator, "turning Roald Dahl's fiction into fact," said Bonnie Christian at Wired. Much like the fictional Wonkavator in Dahl's Charlie and the Chocolate Factory, ThyssenKrupp's ropeless lift "can move vertically, side to side, and diagonally." The Multi uses the same magnetic levitation technology employed by Japan's bullet train, riding an electromagnetic field along a series of tracks inside the building.
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