Why are you wearing a yellow umbrella on rainy days is better?
Maybe you'll say why not red, or blue!That's because blue is cool, and red is too bright,
Because yellow is warm,It is easier to identify in the human visual world, such as traffic lights (red, yellow, blue)
Because in the rainy days because of the dense water vapor in the air, visibility is reduced, easy visual fatigue, and in this case, yellow is better than red!Do you know?
