There are many possible side effects of Tren use, and it is far from the most side effect friendly anabolic steroid. Many of the side effects of Tren are similar to other steroids, but Tren also carries some possible side effects that most steroids do not.
Red Light, Green Light : The Invention of the Traffic Signal. The traffic signal was first invented in 1912 â by a Detroit policeman named Lester Wire â as a two-color, red-and-green light with a buzzer to warn pedestrians ahead of the impending transition.
The first traffic light in South India was installed at Egmore Junction, Chennai in 1953. The city of Bangalore installed its first traffic light at Corporation Circle in 1963. The control of traffic lights made a big turn with the rise of computers in America in the 1950s.