Red-footed tortoises are often household pets. If you own one, you may have to share your tablet computer or smartphone with it from now on. With the right training, they can operate touch-screen interfaces. Researchers...

[http://www.youtube.com/watch?v=6lyudeTqggE](Video Link)Engineers at the University of Electro-Communication in Tokyo designed the AquaTop, a touch-sensitive and responsive interface that works in a pool of water:AquaTop...

Natan Linder, a doctoral student at MIT, and his colleagues developed the LuminAR. It's a gadget that plugs into a light bulb socket and projects a computer interface onto any flat surface:inder’s system uses a cam...