Video of a sandbox equipped with a Kinect 3D camera and a projector to project a real-time colored topographic map with contour lines onto the sand surface. The sandbox lets virtual water flow over the surface using a GPU-based simulation of the Saint-Venant set of shallow water equations.
We (the UC Davis W.M. Keck Center for Active Visualization in the Earth Sciences, http://www.keckcaves.org) built this for an NSF-funded project on informal science education. These AR sandboxes will be set up as hands-on exhibits in science museums, such as the UC Davis Tahoe Environmental Research Center (TERC) or Lawrence Hall of Science.
Project home page: http://idav.ucdavis.edu/~okreylos/ResDev/SARndbox
The sandbox is based on the original idea shown in this video: http://www.youtube.com/watch?v=8p7YVqyudiE
The water flow simulation is based on the work of Kurganov and Petrova, "a second-order well-balanced positivity preserving central-upwind scheme for the Saint-Venant system."
The saying 'there's an app for that' couldn't be more true with this example of some of the 30 craziest apps you can download on your phone right now. They don't really have an actual proper purpose, but they do keep you occupied. Check it out below: Read more
Buying a drink to go? You'll have to drive really carefully for it not to spill, and there's a good chance it might. Unless you have this spill-proof cup holder. It is designed to work with almost every vehicle on earth as long as it already has cup holders installed. Read more