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-He was one of the first atomic theorist of the fifth century
-Theorized that the “atomos” were specific to the material they were composed -
Developed the idea of the atomic theory
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Invented the vacuum tube/crookes tube
Invented 100% ultraviolet blocking sunglass lens
Invented crookes radiometer -
-Invented the vacuum tube/crookes tube
-Invented crookes radiometer
-Invented 100% ultraviolet blocking sunglass lens -
Discovered Radioactivity
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Discovered the electron
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Discovered radium and polonium
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Discovered the Nucleus of the atom
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Discovered that energy is transferred only in certain well defined quantities
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developed a number of fundamental results in the field of quantum theory
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Determined the size of the charge on an electron
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Discovered the Neutron