Hiroshi Ishii and his group at the MIT Media Lab took a ping-pong table and placed a projector above it, and on the ping-pong table they projected an image of water with fish swimming in it.
te su na stolu projektirali površinu vode i ribe koje plivaju na njoj. I kako igrate, tako se kad god loptica udari u stol, valovi širi i ribe pobjegnu.