1876-1900+LG

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Antoine Henri Becquerel was born in Paris on December 15, 1852. Easy to say, Henri was born into a family of science scholars, for example his father Alexander Edmond Becquerel, was a Professor of Applied Physics, and his grandfather Antoine César, had been a Fellow of the Royal Society and the inventor of an electrolytic method for extracting metals from their ores. Some of Henri's ealiest work came from plane polarization of light, also the phenom of phosphesecnce and absorbtion of light crystals. 1896, one of his more fomidable discoveries was natural radioactivities. upon this discovery, Henri decided to futher investigate if there was a connection between X- rays and natural occuring phosphoresecne. Luckily enough for Henri, he inherited a case of uranium salts. This helped in his investigation because when te salts were placed near the plate covered with opaque paper, the plate was discovered to be fogged. with this observation, it was found that to be a property of the uranium atom. for this discovery, Henri was rewarded the prestegious Nobel Prize for physics in 1903. Antoine Henri Becquerel died at Le Croisic on August 25, 1908.

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Wilhelm Conrad Röntgen was born on March 27, 1845, at Lennep in the Lower Rhine Province of Germany. Although at the time it didn't seem as though Wilhelm was interested in Science, he loved to spend his free time roaming about the woods and open country near his home and boarding school at the time. Wilhelm first put his name out to chemistry's public eye was when he dealt with specific heats of gases, followed a few years later by a paper on the thermal conductivity of crystals, in this experiement, studied were the electrical and other characteristics of quartz, the influence of pressure on the refractive indices of various fluids modification of the planes of polarised light by electromagnetic influences, the variations in the functions of the temperature and the compressibility of water and other fluids and the phenomena of accompanying the spreading of oil drops on water. All of this work was follwed by the discovery of "X - Rays". November 8th, Wilhelm had found out one night when he was experimenting in a completely dark room, a paper plate covered on one side with barium platinocyanide placed in the path of the rays became fluorescent even when it was as far as two metres from the discharge tube. when he did this, he found out that objects of different weight and sizes appeared that some showed transparency while others did not. to be completely sure of himself, the man used his wife's hand (wuss bag) and discovered that he could see the bones in her hands but could not see past the ring that she had been wearing. with this discovery of "X - Rays" wilhelm pioneered "X - Rays" so that future scientists could construct upon his work. Röntgen died at Munich on February 10, 1923, from carcinoma of the intestine.

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Ellen Swallow Richards, Born 1842 in New England. It took quite a long and frustrating journey for Ellen to get to college, but after house cleaning, toutoring, etc. she finally made it to Vassar College. It was at Vassar college where Ellen became most interested in astronomy and chemistry and only took her two years to graduate. As she went off into the world, she tried numerous times to apply for positions with various industrial chemists, howevery every chance she got she had been turned down. When this didnt work out for her, she decided to go to M.I.T (actually this was a suggestion from another chemist) and became the first ever woman to be accepted to a scientific school in Americas History. 1875, Marie had married Robert Hallowell Richards, chairman of MIT's mining engineering department. With wanting to make more of a difference, Marie and her husband worked hand and hand to establish the Women's Laboratory in 1876 so that women like herself could get the same opportunity as she did. However Ellen's was most concerned scientific principles to domestic topics—good nutrition, pure foods, proper clothing, physical fitness, sanitation, and efficient practices that would allow women more time for pursuits other than cooking and cleaning. With her brilliance, she is the woman we thank for our tap water tp be safe/drinkable and for the groceries we buy at the store to be healthy and safe to eat.