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Jean Bernard Leon Focault was born on September 19, 1819. He was a French scientist who worked in the area of physics. Among other things, he was the first scientist to photograph the sun. Additionally, he measured the speed of light in a laboratory using rotating mirrors. She showed that humans have binocular vision, that the brain combines the images from the two eyes into a single image. Focault is credited with improvements on mirrors, lenses, prisms, arc lamps, telescopes, and gyroscopes. He also developed the Focault pendulum, with which he demonstrated the rotation of the Earth. Focault died on February 11, 1868 in France. |
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References
Daintith, J., Mitchell, S., & Tootill, E. (1981). A Biographical Encyclopedia of Scientists. New York: Facts on File.
Howard, A.V. (1951). Chamber's Dictionary of Scientists. London: Chambers.
Ireland, N.O. (1962). Index to Scientists of the World, from Ancient to Modern Times: Biographies and Portraits. Boston, MA: Faxon.
McGraw-Hill (1966). McGraw-Hill Modern Men of Science. New York: McGraw-Hill.
