1875-1900+AD

W.K. Roentgen (1895) http://en.wikipedia.org/wiki/Wilhelm_R%C3%B6ntgen

W.K. Roentgen was born in the year in 1845 in Prussia. W.K. Roentgen died in Munich in 1923 from a carcinoma in the intestine.

In 1865 Roentgen went to University of Utrecht to study physics. Thirty years later Roentgen was recognized for his work with rays now known as x-rays with the Nobel Prize in Physics. (Nobel Prize)

Henri Becquerel (1896) http://nobelprize.org/nobel_prizes/physics/laureates/1903/becquerel-bio.html Becquerel was born in Paris on December 15, 1852 "into a family which produced four generations of scientists, including Becquerel's own son Jean. He studied science at the École Polytechnique and engineering at the École des Ponts et Chaussées. In 1890 he married Louise Désirée Lorieux."(en.wikipedia.org/wiki/Henri_Becquerel). Becquerel was a French physicist who won a Nobel Prize for discovering radio activity. He passed away on August 25, 1908.

Marie Curie (1898)

Marie Curie was born on November 7, 1867. She was a Polish/French chemist and physicist, and also the first person to be awarded two Nobel Prizes. Her main course in chemistry was in the area of radio activity. " Her achievements include the creation of a theory of //radioactivity// (a term she coined [2]), techniques for isolating radioactive isotopes, and the discovery of two new elements, polonium and radium. Under her direction, the world's first studies were conducted into the treatment of neoplasms (cancers), using radioactive isotopes. She also named the first new chemical element that she discovered (1898) polonium for her native country, Poland."(en.wikipedia.org/wiki/Marie_Curie)

J.J. Thomson (1898) http://en.wikipedia.org/wiki/J._J._Thomson

J.J. Thomson came up with what is known as the plum pudding model. The plum pudding model descibed how Thomson thought an atom was set up. He believed that there was a sphere that was positively charged and inside the sphere in random spots, like the plums in the plum pudding, were negitively charged electrons.



http://en.wikipedia.org/wiki/Plum_pudding_model

Works Cited for 1875-1900