Ever Wondered What Those Bumps on the Sidewalks Are For?
Walk through most streets in a major city and you'll walk over something you've probably paid little attention to before. At crosswalks and other points on the pavement, you'll find tiny textured bumps. Have you ever wondered why those patterns exist?
Those patterns say a lot to blind pedestrians and those with limited sight. This video from the United Kingdom's Royal National Institute of Blind People explains exactly why those bumps are necessary. Even the different patterns themselves have unique meanings.
Akhlesh Lakhtakia, Evan Pugh University Professor, has received a $300,000 grant from the Criminal Investigations and Network Analysis Center to explore a technique for creating 3D holograms of fingerprints.