(Video Link)
You may have encountered people who can't walk down a hallway without running into other people, or waddle down the center at the slowest possible speed. Or maybe it's just me. I walk fast, so this is a pet peeve of mine. Anyway, this flooring surface developed by researchers at the University of Electro-Communications in Tokyo is an attempt to solve the problem. The stuff is made of lenticular lenses -- the same material used in 3D holographic cards. It's supposed to subconsciously guide you to the right side of the hallway.
via OhGizmo!
Because I'd love to see this flooring deal with that.
http://www.neatorama.com/2010/06/14/improv-everywhere-paints-traffic-lane-for-tourists-on-new-york-city-sidewalk/