What if materials could defy gravity, so that we could leave them suspended in mid-air and freely control them? ZeroN is a physical and digital interaction element that floats and moves in space by computer-controlled magnetic levitation. Both the computer and people can move the ZeroN in the 3D space..

Jinha Lee, Rehmi Post, and Hiroshi Ishii
leejinha.com/zeron
tangible.media.mit.edu
published at UIST 2011.
Jinha Lee, Rehmi Post, and Hiroshi Ishii. 2011. ZeroN: mid-air tangible interaction enabled by computer controlled magnetic levitation. In Proceedings of the 24th annual ACM UIST '11. ACM, New York, NY, USA, 327-336.

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