YOU can now play noughts and crosses with an opponent on the other side of
the world—with only pen and paper. Just draw a grid and make your move.
Tele-Graffiti does the rest, transmitting your move over the Internet and
projecting it onto your oppenent’s paper.
Tele-Graffiti, invented at Carnegie Mellon University in Pittsburgh, consists
of a digital camera and a high-resolution projector. As you sketch your design,
the camera captures your doodling and transmits the digitised image to the other
Tele-Graffiti, where the projector casts the image onto a blank sheet of paper.
The image is so sharp…
