] Tachi's cloak - a shiny raincoat that serves as a movie ] screen, showing imagery from a video camera positioned ] behind the wearer - is more gimmick than practical ] prototype. Nonetheless, from the right angle and under ] controlled circumstances, it does make a sort of ghost of ] the wearer. And, unlike traditional camouflage, it's most ] effective when either the wearer or the background is ] moving (but not both). You don't need a university lab to ] check it out: Stick a webcam on your back and hold your ] laptop in front of you, screen facing out. Your friends ] will see right through you. It's a great party trick. What a great Halloween costume idea:) Wired 11.08: The Super Power IssueBeing Invisible |