Joseph Larmor
Sir Joseph Larmor ( born July 11, 1857 in Magheragall, County Antrim, Northern Ireland, † May 19 1942 in Holywood, County Down ) was an Irish physicist and mathematician.
Life
Larmor studied at the Royal Belfast Academical Institution and Queen's College in Belfast and then at the University of Cambridge at St. John's College. He then spent five years as professor of theoretical physics ( called Natural Philosophy ) at Queens College Galway. From 1903 to 1932 he was a professor at the Luca -sian chair of mathematics at Trinity College, University of Cambridge; his predecessor in that position was George Gabriel Stokes, and was succeeded by Paul Dirac. Larmor, who had spent the summer holidays regularly in his Irish home, pulled retired after Holywood in Ireland. He never married. 1911 to 1922 he worked for the University of Cambridge in the UK Parliament, where he spoke out for the preservation of the Union between Ireland and Great Britain.
Larmor was in his time one of the leading theoretical physicists in the UK. He was the collected works of Stokes, George Francis FitzGerald, John Henry Poynting, Henry Cavendish (1921) and William Thomson (Lord Kelvin) out, and the book Matter and Motion by James Clerk Maxwell.
Work
Larmor published in 1897 as first the Lorentz transformation, two years before Hendrik Antoon Lorentz and eight years before Albert Einstein. He was saying, advance the effect of time dilation and Lorentz contraction confirmed the FitzGerald -, provided the molecules are held together by electromagnetic forces. In 1900 he presented the transformations into something clearer shape, although he did like Lorentz, but unlike Einstein, the associated effects understood as dynamic rather than kinematic. Although he advocated the theory of relativity for a short time, he turned them down later, as he rejected the spacetime curvature and said that absolute time for astronomy was essential.
Larmor assumed that one can imagine the ether as a homogeneous fluid medium, which is incompressible and elastic. How Lorentz he believed that the motion of ether and matter were strictly separate. It united Larmor Kelvin's vortex ether model, with its theory. The matter was described by him as Lorentz as a stream of particles or electrons. Here Larmor assumed that matter and electrons do not own substance and are merely a special form of the ether.
Larmor is still known by the Larmor frequency, the Larmor radius and a formula for the ( non- relativistic ) rate of energy dissipation of an accelerated electron ( Larmor formula ).
Awards
1880 Larmor in the Tripos examinations of the Senior Wrangler (first the checks) of the University of Cambridge, which distinguished him in the same year with the Smith's Prize; 1898 she awarded him the Adams Prize for his work Aether and Matter ( from the then wrote his book of the same ). In 1892 he was elected as a member ( "Fellow" ) to the Royal Society, in 1915, the Royal Medal in 1921 and the Copley Medal awarded him. In 1909 he was knighted. The London Mathematical Society awarded him in 1914 with the De Morgan Medal. In 1911, he became a foreign member of the Accademia Nazionale dei Lincei in Rome. In 1912 he gave a plenary lecture at the International Congress of Mathematicians in Cambridge ( On the Dynamics of Radiation ) and similarly in 1920 in Strasbourg ( Questions in physical indetermination ). The lunar crater Larmor was named after him.