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What way dose sound travel?
Through invisible waves, which travel slightly slower than light waves. :3
What are 3 exampels of light energy in a house?
light bulb
3 things that Albert Einstein invented?
l
Explain how light can bend around corners inside an optical fiber?
Same way a hose will guide water to where you want it to go, the light will be guided by the material of the fiber and projected to the desired point. nick the line and you will see the light escape same as you nick a hose, water will escape. rim<3
3 things that can happen to light when it hits matter it can be?
It refracts, reflects, and absorbs light.
What are 3 facts about Garrett Morgan?
1.) He invented the first gas mask, and with the gas mask he saved over 20 live with it. 2.) He also invented something that changed out way of driving and safety, he invented the Traffic Light. 3.) And most of all he got a gold Medal of Bravery
Who invented the 3 way automatic traffic signal?
The first inventor was Garret A. Morgan at around 1923.
How ladder diagram traffic light 3 junction?
design plc ladder diagram for three junction traffic light
Who has 3 eyes and 1 leg?
A traffic light.
Did Garrett Morgan invented the traffic light?
Yes and no.African-American Garrett Morgan is credited with inventing the electric automatic traffic light which was based on semaphore. The system was quite different to another system invented by a Detroit police officer by the name of William Potts. He was the first to develop the first 4-way 3-colour light system, and it was installed in Detroit in 1920.However, both of these systems were preceded by traffic lights that were around even before cars. The very first traffic light in the world was located at a London intersection in 1868, and was a hand-held revolving gas lantern with red and green signals. This was not an entirely successful experiment, as the light exploded early in 1869, injuring the policeman who was operating it.
3 c on a t l?
3 Colours on a Traffic Light
How long is it for a traffic light to change?
It takes 2-3 minutes for a traffic light to change from green to red! (P.S I have counted the seconds myself!)
3 L on a T L?
3 legs on a tripod
How many points do you get for disregarding a traffic light in Florida?
3 points
What has 1 body 3 eyes 1 leg?
traffic light
What does 3 C on TL mean?
3 colours on a traffic light red amber green
What has 3 eyes and 1 leg?
A traffic light has three "eyes" and one "leg."
