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Sir Joseph John Thomson OM FRS [1] (18 December 1856 – 30 August 1940) was a British physicist and Nobel Laureate in Physics, credited with the discovery of the electron, the first subatomic particle to be found.
- George Paget Thomson, Joan Paget Thomson
- Trinity College, Cambridge
An atom with seven electrons, arranged in a pentagonal dipyramid, as imagined by Thomson in 1905. The plum pudding model is an obsolete scientific model of the atom. It was first proposed by J. J. Thomson in 1904 [1] following his discovery of the electron in 1897, but before Ernest Rutherford discovered the atomic nucleus in 1911.
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Thomson scattering is an important phenomenon in plasma physics and was first explained by the physicist J. J. Thomson. As long as the motion of the particle is non- relativistic (i.e. its speed is much less than the speed of light), the main cause of the acceleration of the particle will be due to the electric field component of the ...
Judith Jarvis Thomson (October 4, 1929 – November 20, 2020) was an American philosopher who studied and worked on ethics and metaphysics. Her work ranges across a variety of fields, but she is most known for her work regarding the thought experiment titled the trolley problem and her writings on abortion.
Overview. The violinist. In "A Defense of Abortion", Thomson grants for the sake of argument that the fetus has a right to life, but defends the permissibility of abortion by appealing to a thought experiment : You wake up in the morning and find yourself back to back in bed with an unconscious violinist. A famous unconscious violinist.
J. J. Thomson took up the challenge in his 1883 Master's degree thesis, a Treatise on the motion of vortex rings. [3] [4] In it, Thomson developed a mathematical treatment of the motions of William Thomson and Peter Tait's atoms.
A 1905 diagram by J. J. Thomson illustrating his hypothesized arrangements of electrons in an atom, ranging from one to eight electrons. The arrangement of seven electrons in a pentagonal dipyramid. Atoms were thought to be the smallest possible division of matter until 1897 when J. J. Thomson discovered the electron through his work ...
