Sandbox in which to play Spring in real life

[troycheek]

Some genius combined a sandbox, a sensor, and a digital projector to create real time terrain shading. It even does water if you dig down below zero. http://imgur.com/gallery/9TQnT

[Floris]

quitte old video by now, and i m sure it has been posted before :p

Also someone in here was working on dynamic water flow control spring project.
found it: viewtopic.php?f=12&t=34208