Joseph Larmor

Sir
Joseph Larmor
FRS
Sir Joseph Larmor FRS
	Larmor, c. 1920
Member of Parliament ; for Cambridge University
	In office; 1911–1922
Preceded by	Samuel Butcher
Succeeded by	J. R. M. Butler
Personal details
Born	11 July 1857; County Antrim, Ireland
Died	19 May 1942 (aged 84); Holywood, Northern Ireland, UK
Education	Royal Belfast Academical Institution
Alma mater	Queen's University Belfast (BA, MA); St John's College, Cambridge (MA);
Known for	Larmor formula; Larmor precession; Time dilation;
Political party	Conservative
Awards	The William Hopkins Prize (1897); De Morgan Medal (1914); Royal Medal (1915); Poncelet Prize (1918); Copley Medal (1921);
Scientific career
Fields	Electromagnetism; Relativistic physics;
Institutions	Queen's College, Galway (1880–1885); University of Cambridge (1885–1932);
Academic advisors	John Purser; Edward Routh;
Notable students	Max Born; Sydney Chapman; Ebenezer Cunningham; Bertram Hopkinson; Robert Schlapp;

Sir Joseph Larmor (11 July 1857 – 19 May 1942) was an Irish mathematician, theoretical physicist, and British politician who made breakthroughs in the understanding of electricity, dynamics, thermodynamics, and the electron theory of matter. His most influential work was Aether and Matter, a theoretical physics book published in 1900.