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VIDEO: Circulafloor - intelligent floor for virtual reality use - Tech Digest
Circulafloor is a set of four tiles that can intelligently position themselves so that you never fall off, but remain in one place. It's an interesting idea, and not one that hasn't come up before, though this one seems to have a long way to go before it's ready for production. Looks like you've got to walk really rather slowly for starters, and I wouldn't trust it if I saw the thing first. You never know, though, if this ends up a little more practical, with more tiles, it could be a winner. (via Dvice)