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historic event
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Historic event
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Historic Event
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Historic event
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disovered oxygen,carbon monoxide, and nitrogen dioxide
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law of conservation of mass
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electrochemical cell and batteries
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proposed the "atomic theory" with spherical atoms based upon measurable properties of mass
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1832-1833 electricity and electrochemistry
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Historic Event
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pasteurization
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dynamite
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Historic event
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used a CRT to study "canal rays" which had electrical properties opposite of an electron
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determined the charge to mass ratio of an electron
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radio, wireless signal in 1899, radio telegraph in 1902
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radioactivity
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established that the nucleus was dense and electrons were outside the nucleus.
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used the idea of quanta to explain hot glowing matter
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Published E=mc(squared)
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oil droped experiment determined the charge and mass of an electron
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Radioactivity
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determined the charges on the nuclei of most atom. the atomic number equals the mass of the protons.
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Historic Event
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Historic Event
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Historic Event
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developed an explaination of the atomic structure and his model had electrons in shells and orbitals
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Isolated Insulin
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Proposed Principle of Indeterminancy
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TV
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Viewed electrons as coninuous clouds and introduced "wave mechanics" as a mathematical model of the atom
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neoprene and nylon 1930's
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Discovered the neutron
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nuclear chain reaction
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Historic Event
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Atomic Bomb
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Historic Event
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polymearse chain reaction
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Historic Event