Inside any apartment building you can always find at least half a dozen Wifi networks, many of those open because the person who set it up doesn’t know any better.  If the interference bothers you or your equipment, or you just feel like blocking those pesky signals, a team of researchers from the University of Tokoyo has finally figured out a way to block the higher frequencies of WiFi with paint.  For several years now, blocking cellphone frequencies and signals with paint was possible, however as mentioned above, the higher frequencies were still able to pass through.  Those clever Tokoyo University students have prevailed however, and soon you can slather your pad in this new paint.  How much will it cost you to turn your apartment into a radio dead zone?…about $50 per can.  Not cheap by any means, but determination knows no limits.

Source: Gizmodo, Unplugged