ChromoSphere (course: Human Computer Interfaces Practice(HCIP))
If you would ask a person which sportscar looks faster, a blue or a red one, most people are likely to say: 'the red one'.

The ChromoSphere is based on this thought. ChromoSphere is a remote controlled transparent ball which expresses its speed in colour. The faster the ChromoSphere rolls around, the ‘faster’ its colour will be. It will light up from blue to green and finally red at top speed.

The transparent version of the ChromoSphere causes an optical illusion. It seems as if the ball floats over the floor instead of rolling around which is quite amazing to see.

You can find more information including images and videos on the official website: The ChromoSphere