#DoYouKnow ? Percy Shaw patented the reflective road stud or - TopicsExpress



          

#DoYouKnow ? Percy Shaw patented the reflective road stud or cats eye in 1934. The cats eye is a retroreflective safety device used in road marking and was the first of a range of raised pavement markers. These inexpensive glass and rubber reflectors are set on the roadway at regular intervals, and help motorists see where the road is at night. Each of the cats eyes reflects oncoming light, acting like lights set into the road. Scores Tonight
Posted on: Wed, 11 Jun 2014 17:27:03 +0000

Trending Topics



Recently Viewed Topics




© 2015