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Fire companies around the country are trading in their old, red trucks for shiny, new yellow ones—mainly because of a long-ignored fact: red is hard to see.
Fire-engine yellow came into vogue a few years ago after an optometrist, Dr. Stephen S. Solomon, urged the switch, the National Geographic Society says. His studies showed the traditional fire truck to be a hazard to firemen and the public because red is hard to distinguish during the day and is even more difficult to
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