Fog Screen

Ismo Rakkolainen and Karri Palovuori, from Tampere University of Technology, Finland, have come up with the Walk-thru Fog Screen. The fog screen, consisting of fog that is blown down from top, and the protective laminar airflow creates a thin and crisp surface, pretty undisturbed by the air in the rest of the room, making it ideal for projector usage. People can walk right through this screen of fog. Their next idea is to use the fog as a touch-screen, making it even more accessible