Why are red and green used for stop lights?

1 Answer

Answer :

Feel Free to Answer

Related questions

Description : CAN SOMEONE HELP ME I DONT GET THIS WHY The green light is shining on a green plant in a red pot. There are no other lights in the room. What color will the green plant appear to be?

Last Answer : i need help bruh ee

Last Answer : : If the red light is on, the car has to wait behind the 'stop line', if the green light is on, the car can move forward and if the yellow light is on, the car has to be prepared to stop.

Description : What is the duration of 4 way red before the green lights?

Last Answer : The duration can be anywhere from 60 seconds to 120 seconds, oreven more. The timing depends on a traffic engineering study

Description : Lights of different colours are arranged below in order of increasing wavelengths: 1. Violet, indigo, blue 2. Green, orange, red 3. Red, green, indigo 4. Blue, green, yellow Which of the above are in proper sequence? (a) 1 only (b) 1 and 2 (c) 2 and 3 (d) 1 and 4

Last Answer : Ans:(d)

Description : The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from------ ? A. Ionosphere (Answer) B. Troposphere C. Mesosphere D. Stratosphere E. None of these

Last Answer : A. Ionosphere (Answer)

Description : The front panel display provides lights as green LED represent sand red LED represent _ for device programmer who writes input/output basic: a. Busy and Error b. Error and Busy c. Busy and Busy d. Error and Error

Last Answer : a. Busy and Error

Description : Arrange the following group of colored lights in the order of INCREASING wavelength: RED, ORANGE, GREEN, BLUE

Last Answer : ANSWER: BLUE, GREEN, ORANGE, RED

Description : What if traffic lights turned red immediately when you're about to hit the "Stop here on red" line?

Last Answer : This is why there is a Yellow Light.

Description : Are stop signs and red lights becoming obsolete?

Last Answer : Good driving habits and consideration for other drivers are what has disappeared. Dumbest move I’ve seen recently was an idiot blowing through a four way stop at 45 to 50 MPH. He never even lifted, with cars at the other stop signs. If anyone had gone, there would have been a hell of a mess.

Description : Should emergency vehicles have a device that turns all lights green?

Last Answer : Things are bad enough with the noise and flashing lights. When I was a boy, my city ran an experiment, wherein they allowed specific kids of the school safety patrols to control the traffic signals at some busy intersections. The experiment lasted nearly 3 days.

Description : Today I noticed that my MacBook have this little green lights on the side of the battery and a little button. What are those for?

Last Answer : That’s a battery meter. Press the button and the amount of lights that show up indicates how much you have left. I think it has other indicators as well.

Description : Anyone know the origin of a goodwill wish "Blue skies and green lights?

Last Answer : answer:Apparently there are a number of references associated with either disc jockeys or late night tv guys. Heres one about Jack Jones: It has also been attributed to Drag Racers who appreciate good weather (blue skies) and stomping on the gas at “go” (Green Lights”).

Description : When operating a powerboat at night you see a green and white lights on another boat what do these lights tell you?

Last Answer : Feel Free to Answer

Description : What does three green lights represents when the landing gear is selected down

Last Answer : B. The gear is down and locked.

Description : What do three green lights represent when the landing gear is selected down? a. The gear is down b. The gear is down and locked c. The gear and doors are down and locked d. The gear is travelling between up and down

Last Answer : b. The gear is down and locked

Description : What do three green lights represent when the landing gear is selected down? a. The gear is down b. The gear is down and locked c. The gear and doors are down and locked d. The gear is travelling between up and down

Last Answer : b. The gear is down and locked

Description : Are emergency vehicles ever able to influence traffic stop lights?

Last Answer : Yes. It is called traffic signal preemption. There is a little doodad on top of the lights that can be triggered by approaching emergency vehicles.

Description : What do you call the roads with on and off ramps, no stop lights, and an average speed limit of 55 - 65?

Last Answer : I would use the general term “highway” unless I knew the specific term for the road I was on. Obviously, “interstate” has a specific meaning, as does “freeway”, even if it is a bit anachronistic – so these terms are not interchangeable.

Description : Emergency vehicles and stop lights that take pictures to give you a ticket: What about this situation?

Last Answer : answer:The law states that you are to move to the right side of the road and yield to emergency vehicles. if going through a red light safely, means yielding to the emergency vehicle, then this is ... you were obeying another traffic law, which is of a higher degree, than simply running a red light.

Description : How much time do you lose stopping at stop lights and stop signs?

Last Answer : You don't 'lose' the time ! You simply factor it into the lengthof a journey - because you should expect to be held at trafficlights for part of your trip !

Description : You go at red, but stop at green. What am I? -Riddles

Last Answer : Watermelon! You eat the red part, and you stop eating at the green part.

Description : Draw ladder diagram for following sequence: i) When NO START Pushbutton is pressed Green light is on. ii) When NC STOP Pushbutton is pressed Red light is on. Green light goes off.

Last Answer : ladder diagram

Description : What is the difference between the flashing red, and the flashing yellow traffic lights?

Last Answer : Flashing red means to treat it as a Stop Sign. Flashing yellow is “proceed with caution”.

Description : How is it that you have to slow down your whole life, but when you die, they let cars run through red lights? What's the hurry all for?

Last Answer : answer:Laugh! Good point, I never thought of that. I think they let all the cars through to keep the line together (unbroken by red lights) and to have a chain of cars united in a ... and public recognition. I'm sure there's a historical element in there somewhere, like from funeral processions.

Description : Can school buses in your state do a right turn on red lights where there's no "no turn on red" restriction?

Last Answer : answer:Well, this, at least, is what Wikipedia says: Some vehicles, such as Hazmat vehicles and school buses are not legally allowed to turn on red under any circumstance and must wait for a green ... vehicles carry very precious and/or delicate cargo. Cargo you don't want to take any chances with.

Description : Why do some police cars have all blue lights and others have red and blue?

Last Answer : You’re asking us?!? ;)

Description : Why are all the landmark buildings in San Francisco lit up with red lights?

Last Answer : Might have something to do with the 49'ers. Football season is starting up again.

Description : The refractive indices for lights of violet, yellow and red colours for a flint glass prism are respectively 1.632, 1.620 and 1.613. Find the dispersi

Last Answer : The refractive indices for lights of violet, yellow and red colours for a flint glass prism are ... Find the dispersive power of the prism material.