We’ve already seen keyboards, mouse, touchscreen, multitouch and gesture controlled interface while the witty brains seem to have lined up touch-free, mud and water interface for the future gadgetry. Water interface being the latest is a brainchild of Taichi Inoue. Dubbed the Minamo "Surface of water" in Japanese, this touchscreen interface on water surface uses a tank of water, light, camera and LCD monitor to create a pretty simple touch input device, follow the jump to see the detail of the making in the video below.

Via: Make