Yellow (and the yellow family of colors) gets your attention faster than any other color. People notice yellow objects first.
Even when you are looking straight ahead, you can see a yellow object that is not in front of you "in the corners of your eyes" much sooner than any other color, even red. Scientists describe this as follows: "Lateral peripheral vision for detecting yellows is 1.24 times greater than for red."
Many experts also point out that colors such as yellow or greenish-yellow are more visible to the human eye under dimmer conditions compared to red.
So with this in mind, why are fire trucks red?
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