Towards invisible objects

This is the way to make something invisible with basic electronic building blocks, so not based on bending light and all that. You take a camera behind the thing you want people not to see, motorize it so it can move in any direction, have a projector or display on the front of the object, you detect the gaze of the observer, move the camera behind the object so it is filming what the observer would see in case there were no object, and project this image onto the front of the object.

Now this is exactly what Daniel Franke has done with a cube. The movie feels a little, say, geeky, but you'll get the idea of the experience later on.