Editing J. J. Thomson (section)

===Early work===
Thomson's prize-winning master's work, ''Treatise on the motion of vortex rings'', shows his early interest in atomic structure.<ref name="Nobel1906" /> In it, Thomson mathematically described the motions of [[William Thomson, 1st Baron Kelvin|William Thomson]]'s vortex theory of atoms.<ref name="Leadership" />
 
Thomson published a number of papers addressing both mathematical and experimental issues of electromagnetism.  He examined the [[electromagnetic theory of light]] of [[James Clerk Maxwell]], introduced the concept of [[Electromagnetic mass|electromagnetic mass of a charged particle]], and demonstrated that a moving charged body would apparently increase in mass.<ref name="Leadership" />

Much of his work in mathematical modelling of chemical processes can be thought of as early [[computational chemistry]].<ref name="Profile" /> In further work, published in book form as ''Applications of dynamics to physics and chemistry'' (1888), Thomson addressed the transformation of energy in mathematical and theoretical terms, suggesting that all energy might be kinetic.<ref name="Leadership" /> His next book, ''Notes on recent researches in electricity and magnetism'' (1893), built upon Maxwell's ''Treatise upon electricity and magnetism'', and was sometimes referred to as "the third volume of Maxwell".<ref name="Nobel1906" /> In it, Thomson emphasized physical methods and experimentation and included extensive figures and diagrams of apparatus, including a number for the passage of electricity through gases.<ref name="Leadership" /> His third book, [http://catalog.hathitrust.org/Record/001985977 ''Elements of the mathematical theory of electricity and magnetism''] (1895)<ref>{{cite journal|author=Mackenzie, A. Stanley|author-link=Arthur Stanley Mackenzie|title=Review: ''Elements of the Mathematical Theory of Electricity and Magnetism'' by J. J. Thomson|journal=Bull. Amer. Math. Soc.|year=1896|volume=2|issue=10|pages=329–333|url=https://www.ams.org/journals/bull/1896-02-10/S0002-9904-1896-00357-8/S0002-9904-1896-00357-8.pdf|doi=10.1090/s0002-9904-1896-00357-8|doi-access=free}}</ref> was a readable introduction to a wide variety of subjects, and achieved considerable popularity as a textbook.<ref name="Leadership" />
[[File:Thomson-13.jpg|alt=First page to Notes on Recent Researches in Electricity and Magnetism (1893)|thumb|200x200px|First page to ''Notes on Recent Researches in Electricity and Magnetism'' (1893)]]
A series of four lectures, given by Thomson on a visit to [[Princeton University]] in 1896, were subsequently published as ''Discharge of electricity through gases'' (1897).  Thomson also presented a series of six lectures at [[Yale University]] in 1904.<ref name="Nobel1906" />