3D Video Display

Remember the scene in the movie Minority Report where Tom Cruise uses a 3D holographic interface to track down people before they commit crimes? True holographic projection technology is still years away from being a reality, but some Japanese scientists are at least headed in the right direction.

It's not exactly a hologram, but Japan's National Institute of Advanced Industrial Science and Technology (AIST) has developed a 3D display that uses precisely aligned, intersecting infrared lasers to create small amounts of plasma in mid air. The visible plasma dots are capable of forming letters and simple shapes. It's probably only a matter of time until advertisers start utilizing this technology as a form of nighttime skywriting.