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.
iar pe masa de ping-pong au proiectat o imagine cu apa si pesti ce innotau in apa. Cand jucai ping-pong, oricand bila lovea o parte a mesei undele se raspandeau iar pestele fugea.