Peter Barnum, Srinivasa Narasimhan and Takeo Kanade, researchers at Carnegie Mellon University in Pittsburgh, Pennsylvania have created a 3D volumetric display that translates into projecting images onto series of water screens. The screens are one behind the other in order to give it depth. The droplets of water falling from 50 stainless-steel needles form each screen of water. The droplets of water are released from the 50 needles in harmony, creating 60 such lines every second. With the help of the camera the position of the droplets is captured, feeding all the information to the projector, which in turn illuminates them with colorful pulses of light.

The projection of light translates into riot of colors, which is nothing but appealing and exciting. As, I look at it, every projection evokes an image in my mind. And, because the human eye takes and integrates information from various pulses, it creates an illusion of images, moving on the floating screen.