Tag Results for: Lester Wire
June 21st 2010
The Traffic Signal
Don’t say we don’t try and teach you something… The traffic signal was first invented in 1912 – by a Detroit policeman named Lester Wire – as a two-color, red-and-green light with a buzzer to warn pedestrians ahead of the impending transition. In 1920, this basic design was modified (by another policeman named William Potts)…
