  urlLink Slashdot reported two days ago about urlLink The University of Tokyo developing a technology that would allow for invisible cloaks and translucent walls. The technique they use for the cloaks they call "optic camouflage". (There's demonstration videos on the page. Check 'em out. They're pretty cool. ) Slashdot says: The inventor's next objective is to make urlLink walls that are invisible , using the same technology.
Shit, I thought clean glass was already pretty invisible. Moreover, not so long ago, glasses that have no reflections were invented. In my opinion, a mix of both would give a fairly decent transparent wall. Also worthy of mention is urlLink SmartGlass , which is able to go from transparent to opaque with a controlled electric current. 
