Not quite open-air. Goes through about 120ml of tap water an hour, which it sprays onto the air, and uses a rear projector onto that. The video doesn't look to

Not quite open-air. Goes through about 120ml of tap water an hour, which it sprays onto the air, and uses a rear projector onto that. The video doesn't look too impresive. It just shoots up water and projects a 2D image onto it. Maybe has potential. But I'm not all that excited about spraying water into the air.