Why is the fire suit red?
The sun is made up of seven colors, red, orange, yellow, green, blue, blue and violet, with different wavelengths and angles. When sunlight shines on objects, different objects absorb and reflect different wavelengths of light, and they form different colors. In short, if an object absorbs some of the light in the sun and absorbs the rest of it, the object assumes the color of the reflected monochromatic or polychromatic light. In visible light, the red light has the longest wavelength and the smallest angle, and passes through the water layer, the rain, the dust and the fog. Orange and yellow light are not afraid to penetrate these objects. So the fire truck painted red in the foggy weather, the dusty environment or a dangerous situation, you can see all the way people call it, to make way for it, so that it as soon as possible to complete the task of fire and rescue.
Most of the fire engines in the country are red. Because it's the most eye-catching, you can see it from far away. However, according to the New York transportation department survey, red fire engines every 100 thousand trips, accident 32 times. And if the fire car painted more vivid yellow, each sent 100 thousand trips, the only 14.5 times, fell by more than half. Because the light color will make the outline of the car bigger, there is closer to their feeling, traffic safety advantages. So they decided to paint the fire engine yellow. But the fire department is strongly opposed to doing so, because the yellow people emotional stability, will reduce the efficiency of fire fighting, and red can inspire morale, exciting.
It's the same thing as a fire truck painted in a color
