Sports over a Distance (Mueller et al., 2003)
The authors' goal of designing sport (physical game) with a partner over distance is to create social experience through joint physical activities. In their technology probe two partners are playing the sport game in front of a wall in their own rooms. They can see each other's life size projection on the wall as if the partner stands on the opposite. They can also communicate with each other during the sport game through the microphones and cameras. When the two players are standing against each other, eight semi-transparent pieces of glass appear synchronously on the walls of both sides - like the net on a tennis court that separates the players. In the game, players have to kick their own balls to shoot the glass blocks until they break. Who makes the last shoot to break the glass gets the point.
Reference: F. Mueller, S. Agamanolis, R. Picard. 2003. Exertion interfaces: Sports over a distance for social bonding and fun. In Proceedings of the CHI 2003 Conference on Human Factors in Computing Systems.