Technology Review (MIT): â€œAt the base of the new device a “sensor tile” produces magnetic multiple fields above its surface. By detecting disturbances to these fields, the system can track the movement of a metal object across its surface, or the manipulation of a bladder filled with iron filings or a magnetic fluid. A user can drag a ball bearing across the surface to move a cursor across a computer’s screen, or manipulate a ferrous fluid-filled bladder to sculpt 3D virtual objects.â€ â€“ Pretty cool stuff.
The caption for the image at right: “Bladder control: Manipulating a magnetic fluid on top of the researchers’ “sensor tile” (top) offers a novel way to control a computer. The interface can be used to sculpt virtual shapes (bottom). Credit: Microsoft”