Drivers Ed Homework - Hisory of Traffic Lights

Drivers Ed Homework: Maclean Marlin

History of Traffic Lights

The first traffic signal was invented in 1912 by a former policeman named Lester Wire but it however only had two lights, red and green. Also this first light had a buzzer to warn any pedestrians about the incoming transition. Another police officer named William Potts modified that design to include the the yellow light as well, this happened in 1920. The main differences between that light and the traffic lights of today are that our traffic lights have automatic timers, diode lights, and motion sensors to detect cars. The traffic light was mainly invented to lighten the load on the police who were doing the dangerous job of controlling busy intersections. The new lights allowed policemen to do other jobs such as ticketing and catching speeders. The first light was invented in Detroit and was implemented there first and following its success the design was patented and bought by General Electric. General Electric then went on to sell the traffic light across North America and the rest of the world.

History of Tires

The first tires were just basic wheels on charts many thousands of years ago and they evolved into the tires that we have today. Early rubber did not hold its shape like it does now until in 1839 when Charles Goodyear discovered the Vulcanization. Vulcanization makes rubber extremely firm and makes it very ideal for tires. These early tires were made out of solid rubber but they were very heavy and did not have a smooth ride however some tires are still made of solid rubber. Robert Thomson invented the first Pneumatic Tires which were rubber tires which had enclosed air to reduce vibration and to include traction. This however was not regarded as a good idea until 1888 when John Dunlop invented it again claiming he had no knowledge of the earlier invention. This time the public liked the idea and it became very popular. This is how the modern tire came to be.

History of the Headlight

The first head light came out in 1898 on the Columbia Electric Car and they were a optional add on to the car. The headlights had a short lifespan and were hard to produce so they were very rarely used. In 1904 Acetylene lights caled “Prest-O-Lite” were offered by many car manufacturers and companies such as Peerless made the Electric Headlamps standard around 1908. Around 1912 the Cadillac linked the ignition and head lights together which created the modern Headlight system. New systems known as control and dip came around before the 1940’s but the main new change was the sealed beam headlights in the 40s. Bulb and sealed beam units were used across the world in the 60s until Halogen bulbs became the new industry standard. Now the modern Headlights use LED bulbs.

What cars do I drive

I drive a black nissan pathfinder, and eventually a silver honda fit (it’s a standard”

If I was a car what would