Color Blindness
...red or yellow. He is pretty sure it is blinking yellow so he continues on through. Another car about to pull out jerks on the brakes as the trucks surges through the intersection. Is this the drivers fault or should he have known what color the light was? Could blindness, is one of the more common forms of vision deficiency that many males and some females have to deal with on a day-to-day basis. Color blindness does not also affect the way they drive but the colors they wear, the food they cook, and can even keep them from obtaining certain jobs.
Color blindness, or color vision deficiency, in humans is the inability to perceive differences between some or all colors that other people can distinguish. It is most often of genetic nature, but may also occur because of eye, nerve, or brain damage, or due to exposure to certain chemicals. Color blindness is an inaccurate term for a lack of perceptual sensitivity to certain colors. Absolute color blindness is almost unknown.
The first person to describe color blindness was the English chemist and physicist John Dalton. Dalton is well known because he was the first modern scientist to develop the atomic theory. However, Dalton was concerned in many topics besides atoms. For example, he was keenly interested in meteorology, which is the study of weather and kept daily weather records for fifty-seven years. His records, published as Meteorological Observations and Essays, are among the most complete in all of scientific history. The first scientific paper Dalton ever wrote was about color blindness. He most likely became interested in the subject of color blindness because he, as well as his brother, was color blind. After the discovery that he and his brother were color blind, Dalton, in 1798, published the first scientific paper on the subject, "Extraordinary facts relating to the vision of...
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