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Kelvin also wrote under the pseudonym "P. Q. R." William Thomson, 1st Baron Kelvin (26 June 1824 – 17 December 1907 [ 7 ]) was a British mathematician, mathematical physicist and engineer. [ 8 ][ 9 ] Born in Belfast, he was the professor of Natural Philosophy at the University of Glasgow for 53 years, where he undertook significant research ...
The vortex theory of the atom was a 19th-century attempt by William Thomson (later Lord Kelvin) to explain why the atoms recently discovered by chemists came in only relatively few varieties but in very great numbers of each kind. Based on the idea of stable, knotted vortices in the ether or aether, it contributed an important mathematical legacy.
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.
In 1862, the physicist William Thomson, 1st Baron Kelvin published calculations that fixed the age of Earth at between 20 million and 400 million years. [19] [20] He assumed that Earth had formed as a completely molten object, and determined the amount of time it would take for the near-surface temperature gradient to decrease to its present value.
Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of thermodynamics, which convey a quantitative description using measurable macroscopic physical quantities ...
The 19th century British scientist Lord Kelvin first developed and proposed the scale. [ 5 ] It was often called the "absolute Celsius" scale in the early 20th century. [ 6 ] The kelvin was formally added to the International System of Units in 1954, defining 273.16 K to be the triple point of water. The Celsius, Fahrenheit, and Rankine scales ...
It then underwent peer review, being sent to William Thomson (later Lord Kelvin) on 24 December 1864. [2] It was then sent to George Gabriel Stokes, the Society's physical sciences secretary, on 23 March 1865.
The product of the mass of a body into the square of its velocity may properly be termed its energy. [4] Gustave-Gaspard Coriolis described "kinetic energy" in 1829 in its modern sense, and in 1853, William Rankine coined the term " potential energy." It was argued for some years whether energy was a substance (the caloric) or merely a physical ...