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| Timeline of particle physics ： ウィキペディア英語版 |
Timeline of particle physics
The timeline of particle physics lists the sequence of particle physics theories and discoveries in chronological order. The most modern developments follow the scientific development of the discipline of particle physics.
==19th century==
* 1815 – William Prout hypothesizes that all matter is built up from hydrogen, adumbrating the proton;
* 1838 – Richard Laming hypothesized a subatomic particle carrying electric charge;
* 1858 – Julius Plücker produced cathode rays;
* 1874 – George Johnstone Stoney hypothesizes a minimum unit of electric charge. In 1891, he coins the word electron for it;
* 1886 – Eugene Goldstein produced anode rays;
* 1897 – J. J. Thomson discovered the electron;
* 1899 – Ernest Rutherford discovered the alpha and beta particles emitted by uranium;
* 1900 – Paul Villard discovered the gamma ray in uranium decay.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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