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A Simultaneous Discovery: The Case of Johannes Stark and Antonino Lo Surdo
In 1913 the German physicist Johannes Stark (1874–1957) and the Italian physicist Antonino Lo Surdo (1880–1949)discovered virtually simultaneously and independently that hydrogen spectral lines areExpand
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The Discovery of Artificial Radioactivity
We reconstruct Frédéric Joliot and Irène Curie’s discovery of artificial radioactivity in January 1934 based in part on documents preserved in the Joliot–Curie Archives in Paris, France. We argueExpand
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Enrico Fermi’s Discovery of Neutron-Induced Artificial Radioactivity: Neutrons and Neutron Sources
Abstract.We reconstruct and analyze the path leading from James Chadwick’s discovery of the neutron in February 1932 through Frédéric Joliot and Irène Curie’s discovery of artificial radioactivity inExpand
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Enrico Fermi’s Discovery of Neutron-Induced Artificial Radioactivity:The Influence of His Theory of Beta Decay
We analyze the influence of Enrico Fermi’s theory of beta decay, which he formulated in December 1933, on his experimental discovery of neutron-induced artificial radioactivity four months later, inExpand
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Frédéric Joliot, Irène Curie and the early history of the positron (1932–33)
As is well known, the positron was discovered in August 1932 by Carl Anderson while studying cloud chamber tracks left by cosmic rays. Far less known is the fact that a few months before Anderson'sExpand
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Enrico Fermi’s Discovery of Neutron-Induced Artificial Radioactivity:The Recovery of His First Laboratory Notebook
Abstract.We give a short description of the discovery of the first experimental notebook of Enrico Fermi (1901-1954) on his researches during March and April of 1934 on neutron-induced artificialExpand
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Una biografia scientifica
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Fermi’s strategic choices
Already in 1933 before he had developed his own theory of beta decay Fermi had taken an interest in the properties of the neutron, showing great confidence in the use of this particle as a projectileExpand