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Comments to #6
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Party 4 year s ago
The green light in a traffic signal also has a little blue in it so red/green colorblind people can tell the difference between the red light and the green light.
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Skeleton 4 year s ago
...#4 I highly doubt, that when they started shuffling giant red and green dots on the sticks - few hundred yrs ago anyone had a clue about all that BS. Same goes for the ship's starboard and port navigation lights - so u need to find better explanation.
School buses
The color yellow on school buses was selected for security reasons. The contrasting yellow and black colors on school buses help them to be easily noticed by students, especially in the morning when they’re being picked up. These 2 colors also help other drivers notice the school bus during darker hours.
3
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Party 4 year s ago
The green light in a traffic signal also has a little blue in it so red/green colorblind people can tell the difference between the red light and the green light.
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2.
Skeleton 4 year s ago
...#4 I highly doubt, that when they started shuffling giant red and green dots on the sticks - few hundred yrs ago anyone had a clue about all that BS. Same goes for the ship's starboard and port navigation lights - so u need to find better explanation.