ZeroN: Levitated Tangible Interfaces

ZeroN is a new tangible interface element that can be levitated and moved freely by computer in a three dimensional space. ZeroN serves as a tangible representation of a 3D coordinate of the virtual world through which users can see, feel, and control computation. We developed a magnetic control system that can levitate and actuate a permanent magnet in a pre- defined 3D volume. This is combined with an optical tracking and display system that projects images on the levitating object. Users are invited to place or move the ZeroN object just as they can place objects on surfaces. For example, users can place the sun above physical objects to cast digital shadows, or place a planet that will start revolving based on simulated physical conditions.