Roentgens X-ray Machine, 19th Century
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Wilhelm Roentgen, German Physicist #4
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Marie And Pierre Curie In Laboratory
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Alexander Fleming, Scottish Biologist #1
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Watson-crick Model, 1953
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Alexander Fleming, Scottish Biologist
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Oppenheimer, Fermi And Lawrence, 1940
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Wwii, Winston Churchill, U.k. Prime
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Discovery Of The Positron, 1932
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Wilhelm Konrad Roentgen, German #2
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Erwin Schrodinger, Austrian Physicist
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Werner Heisenberg, German Theoretical
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Theodore Roosevelt, 26th American #3
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Albert Einstein, German-american #2
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Max Planck, German Physicist
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Theodore Roosevelt, 26th American #1
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Melvin Calvin, American Chemist
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Sir Alexander Fleming, Scottish
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Paul Ehrlich, German Immunologist
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Thomas Hunt Morgan, American Geneticist
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Frederick Grant Banting, Canadian
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Niels Bohr, Danish Physicist #1
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Enrico Fermi, Italian-american Physicist
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Hans Bethe, German-american Physicist
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Albert Einstein, German-american #1
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Martin Luther King, Jr
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Fridtjof Nansen, Norwegian Explorer
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Willem Einthoven, Dutch Physiologist
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Paul Ehrlich, German Immunologist
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Jean Henri Dunant, Swiss Humanitarian
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Discovery Of The Positron, 1932 #2
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Thomas Hunt Morgan, American Geneticist #1
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Melvin Schwartz, American Physicist
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Wilhelm Roentgen, German Physicist
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Fridtjof Nansen, Norwegian Explorer #1
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Emil Von Behring, German Immunologist #2
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Luis Alvarez, American Physicist #1
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Alvarez Atomic Bomb Drawing, 1945
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Guglielmo Marconi, Italian Inventor #9
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President Roosevelt And Gifford Pinchot
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Allvar Gullstrand, Swedish Opthamologist
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J. J. Thomson, English Physicist
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Wilhelm Konrad Roentgen, German #1
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J.j. Thomson, English Physicist
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Rosalyn Yalow, Medical Physicist
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Jules Bordet, Belgian Immunologist #1
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Robert Millikan, American Physicist #2
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Paul Ehrlich, German Immunologist #6
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Alfred Nobel, Swedish Chemist #3
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Robert Koch, German Microbiologist #6
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Luis Alvarez, American Physicist #2
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Antiproton Discovery Team, 1955
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Luis Alvarez, American Physicist #4
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Rudolph Marcus, American Chemist
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Melvin Calvin, American Chemist #3
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Ernest Lawrence, American Physicist #2
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John Mather, American Astrophysicist
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Albert Einstein, German-american
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Young Theodore Roosevelt
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Alvarez Calculation, 1947 #1
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Hans Bethe And Enrico Fermi, Physicists
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Jules Bordet, Belgian Immunologist
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Ilya Ilyich Mechnikov, Russian #3
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A.v. Hill, English Physiologist #1
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William Ramsay, Scottish Chemist #1
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Woodrow Wilson, 28th American President #1
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Albert Einstein, German-american #2
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Luis Alvarez, American Physicist
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Pavlov In Lecture Theater, 1904
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Samuel Ting, American Physicist
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Hans Bethe, German-american Physicist #1
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Roosevelt And Santa, Nobel Prize, 1906
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