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Show Why Red Means Danger IT is not just by chance or through custom that red ia the color used for flags, lights and other signs which indicate the presence of danger. Red has been definitely chosen for the purpose because it ia more conspicuous and shows fsrther than any other color. Many hues such as blue, gray, brown, green and yellow have a tendency to merge into their surroundings and become almost invisible at a short distance. Hence, of course, the green uniforms uni-forms of the old days of forest righting, and the khaki of later years. But red is always distinctly red and stands out from almost any background. White and green are also quite easily seen, but white would be impossible as a cautionary sign, particularly at night, for obvious reasons, while green is handicapped by the excessive use msde of that color by nature. Given lamps of an equal strength, fitted with colored glsssea, scientists have found that where the red light would carry three and a half miles, white and green would carry but two and a half miles, yellow one mile and blue, purple and violet less than one mile. |