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Watch an ultrasonic array move objects in 3D space (video)
Ultrasonic levitation has been possible for awhile, but it's not very practical when objects must typically hover along a single axis. University of Tokyo researchers Yoichi Ochiai, Takayuki Hoshi and Jun Rekimoto have cleared this hurdle with an ultrasonic array that can push items around in 3D space. The machine creates a focal point from a three-dimensional standing wave; users just have to alter the wave's properties to move whatever is caught inside that point. The technique can manipulate a wide range of materials, and it's safe to disrupt with your hands. While the array will need to scale up before it lifts objects much larger than matchsticks or screws, it already shows that we don't need exotic technologies like tractor beams to float things through the air.
Cyclone Display exemplifies 'multi-colored expression,' totally heading to a nightclub near you (video)
Ever heard of Yoichi Ochiai? You have now. Hailing from Japan's University of Tsukuba, this whizkid was on hand here at SIGGRAPH to showcase one of his latest creations -- and it just so happened to be one of the trippiest yet. The Cyclone Display was a demonstration focused on visual stimulation; a projector shown above interacted with a plate of spinning disks. Underneath, a cadre of motors were controlled by a connected computer, and as the rotation and velocity changed, so did the perceived pixels and colors. The next step, according to Ochiai, would be to blow this up and shrink it down, mixing textures in with different lighting situations. With a little help, a drab nightclub could douse its walls in leopard print one night, or zebra fur another. Interactive clubbing never sounded so fun, eh? You know the drill -- gallery's below, video's a click beneath. %Gallery-130394%
