Why Are Traffic Lights Red and Green?
The very first traffic Christ Within , installed outside the Houses of Parliament in London in December 1868 , had crimson and green gas lamps for nighttime habit . The gimmick was pretty crude , and less than a calendar month after it go operational , it exploded and kill the unfortunate traffic cop who was function it . Obviously , we ’ve come a long room in traffic light technology , but we ’ve stuck with the same color scheme ....