Wednesday, 21 February 2007

Ping Pong Ball Mirror

Did you ever see the movie version of Michael Chrichton's Sphere?

During the adventurers' first contact with the sphere, it changes its surface to mimic what it sees.

Well, artist Daniel Rozen has created a low res version using an array of tubes, each with a ping pong ball at the front and a little motor at the back.

Each ball is chrome-painted to be dark on one half and light on the other. A computer inside controls the motors, to orient the balls so that together they display a representation of what a camera, mounted in the centre of the array, sees.