Maxwell, James Clerk

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{{epname|Maxwell, James Clerk}}
 
{{epname|Maxwell, James Clerk}}
 
{{Infobox_Scientist
 
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== Biography ==
 
== Biography ==
 
===Early life and education===
 
===Early life and education===
James Clerk Maxwell was born on June 13, 1831 in Edinburgh, Scotland, to John Clerk and Frances (née Cay) Maxwell. His birthplace, at 15 India Street, is now the location of the [[International Centre for Mathematical Sciences]].
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James Clerk Maxwell was born on June 13, 1831, in Edinburgh, Scotland, to John Clerk and Frances (née Cay) Maxwell. His birthplace, at 15 India Street, is now the location of the [[International Centre for Mathematical Sciences]].
  
Maxwell grew up on his father's estate in Dumfrieshire in the Scottish countryside. Maxwell's parents quickly recognized their son's inquisitive nature. His mother took responsibility for his early education, which in Victorian times was largely the job of the women of the house. She died in 1839, however, when Maxwell was only eight. His father then undertook the education of his son with the aid of his sister-in-law Jane Cay, both of whom played pivotal roles in Maxwell's life. His formal education began under the guidance of a hired tutor, but finding this arrangement less than satisfactory, John Maxwell sent his son to the [[Edinburgh Academy]].
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Maxwell grew up on his father's estate in Dumfrieshire, in the Scottish countryside. Maxwell's parents quickly recognized their son's inquisitive nature. His mother took responsibility for his early education, which in Victorian times was largely the job of the woman of the house. She died in 1839, however, when Maxwell was only eight. His father then undertook the education of his son with the aid of his sister-in-law, Jane Cay, both of whom played pivotal roles in Maxwell's life. His formal education began under the guidance of a hired tutor, but finding this arrangement less than satisfactory, John Maxwell sent his son to the [[Edinburgh Academy]].
  
Maxwell was captivated by [[geometry]] at an early age. Much of his talent went unnoticed however, and his academic work remained unremarkable until, in 1845 at the age of 13, he won the school's mathematical medal, and first prizes for English and for English verse. His first piece of original work, at the age of 14 was a paper describing mechanical means of drawing [[mathematical curves]] with a piece of [[twine]], and properties of [[ellipse]]s and curves with more than two [[Focus (geometry)|foci]]. This work, ''Oval Curves'', was published in an issue of the ''Royal Society of Edinburgh'', and although it shows the curiosity of Maxwell at a young age, it is important to note that the work itself was not mathematically profound. Unlike other great minds, such as [[Carl Friedrich Gauss|Gauss]], [[Blaise Pascal|Pascal]] or [[Wolfgang Amadeus Mozart|Mozart]], Maxwell was not a [[child prodigy]]. Rather, his genius would slowly mature.
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Maxwell was captivated by [[geometry]] at an early age. Much of his talent went unnoticed however, and his academic work remained unremarkable until, in 1845, at the age of 13, he won the school's mathematical medal, and first prizes for English and for English verse. His first piece of original work, at the age of 14, was a paper describing mechanical means of drawing [[mathematical curves]] with a piece of [[twine]], and properties of [[ellipse]]s and curves with more than two [[Focus (geometry)|foci]]. This work, ''Oval Curves,'' was published in an issue of the ''Royal Society of Edinburgh,'' and although it shows the curiosity of Maxwell at a young age, it is important to note that the work itself was not mathematically profound. Unlike other great minds, such as [[Carl Friedrich Gauss|Gauss]], [[Blaise Pascal|Pascal]], or [[Wolfgang Amadeus Mozart|Mozart]], Maxwell was not a [[child prodigy]]. Rather, his genius would slowly mature.
  
 
===Middle years===
 
===Middle years===
 
[[Image:YoungJamesClerkMaxwell.jpg|thumb|left|A young Maxwell at university.]]
 
[[Image:YoungJamesClerkMaxwell.jpg|thumb|left|A young Maxwell at university.]]
Maxwell left the [[Edinburgh Academy|Academy]] in 1847 and enrolled at the [[University of Edinburgh]]. He completed his studies at Edinburgh in [[natural philosophy]], [[moral philosophy]], and mental philosophy under [[Sir William Hamilton, 9th Baronet]]. In his eighteenth year he contributed a paper to ''Transactions of the [[Royal Society of Edinburgh]]'', ''On the Equilibrium of Elastic Solids.''
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Maxwell left the [[Edinburgh Academy|Academy]] in 1847, and enrolled at the [[University of Edinburgh]]. He completed his studies at Edinburgh in [[natural philosophy]], [[moral philosophy]], and mental philosophy under [[Sir William Hamilton, 9th Baronet]]. In his eighteenth year, he contributed a paper to ''Transactions of the [[Royal Society of Edinburgh]],'' "On the Equilibrium of Elastic Solids."
  
In 1850, Maxwell left for [[University of Cambridge|Cambridge University]] and initially attended [[Peterhouse, Cambridge|Peterhouse]], but eventually left for [[Trinity College, Cambridge|Trinity College]] where he believed it would be easier to obtain a [[fellowship]]. In November 1851, Maxwell studied under the tutor [[William Hopkins]] (nicknamed the "[[Wrangler (University of Cambridge)|wrangler]] maker").  
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In 1850, Maxwell left for [[University of Cambridge|Cambridge University]] and initially attended [[Peterhouse, Cambridge|Peterhouse]], but eventually left for [[Trinity College, Cambridge|Trinity College]] where he believed it would be easier to obtain a [[fellowship]]. In November 1851, Maxwell studied under the tutor [[William Hopkins]], (nicknamed the "[[Wrangler (University of Cambridge)|wrangler]] maker").  
  
In 1854, Maxwell graduated with a degree as second wrangler in [[mathematics]] from Trinity (i.e. scoring second-highest in the final mathematics examination) and was declared equal with the senior wrangler of his year in the more exacting ordeal of the Smith's prize examination. Immediately after taking his degree, he read to the Cambridge Philosophical Society a novel memoir, ''On the Transformation of Surfaces by Bending''. This is one of the few purely mathematical papers he published, and it exhibited at once to experts the full genius of its author. About the same time, his paper, ''On [[Michael Faraday|Faraday]]'s Lines of Force'' appeared, in which he gave the first indication of some of the electrical investigations which culminated in the greatest work of his life.  
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In 1854, Maxwell graduated with a degree as second wrangler in [[mathematics]] from Trinity (scoring second-highest in the final mathematics examination) and was declared equal with the senior wrangler of his year in the more exacting ordeal of the Smith's prize examination. Immediately after taking his degree, he read to the Cambridge Philosophical Society a novel memoir, ''On the Transformation of Surfaces by Bending''. This is one of the few purely mathematical papers he published, and it exhibited at once to experts the full genius of its author. About the same time, his paper, ''On [[Michael Faraday|Faraday]]'s Lines of Force'' appeared, in which he gave the first indication of some of the electrical investigations which culminated in the greatest work of his life.  
  
In 1855, Maxwell was appointed to the chair of Natural Philosophy at [[Marischal College]], [[Aberdeen, Scotland|Aberdeen]]. In 1858 he married Katherine Mary Dewarin, the daughter of the principal of Marischal College. The couple had no children, but Maxwell often enjoyed the assistance of his wife in his duties. When Marischal merged with another college to form the University of Aberdeen, Maxwell's position was eliminated, but he soon found another, joining the teaching staff of Kings' College, London, as professor of natural philosophy.
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In 1855, Maxwell was appointed to the chair of Natural Philosophy at [[Marischal College]], [[Aberdeen, Scotland|Aberdeen]]. In 1858, he married Katherine Mary Dewarin, the daughter of the principal of Marischal College. The couple had no children, but Maxwell often enjoyed the assistance of his wife in his duties. When Marischal merged with another college to form the University of Aberdeen, Maxwell's position was eliminated, but he soon found another, joining the teaching staff of Kings' College, London, as professor of natural philosophy.
  
In 1859, Maxwell won the [[Adams prize]] in Cambridge for an original essay, ''On the Stability of Saturn's Rings'', in which he concluded the rings could not be completely solid or fluid. Maxwell demonstrated that the rings could only be stable if they consisted of numerous small solid particles, which he called "brickbats." He also mathematically disproved the nebular hypothesis (which stated that the [[solar system]] formed through the progressive [[condensation]] of a purely [[gaseous nebula]]), forcing the theory to account for additional portions of small solid particles.
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In 1859, Maxwell won the [[Adams prize]] in Cambridge for an original essay, ''On the Stability of Saturn's Rings,'' in which he concluded the rings could not be completely solid or fluid. Maxwell demonstrated that the rings could only be stable if they consisted of numerous small solid particles, which he called "brickbats." He also mathematically disproved the nebular hypothesis (which stated that the [[solar system]] formed through the progressive [[condensation]] of a purely [[gaseous nebula]]), forcing the theory to account for additional portions of small solid particles.
  
On the foundation of an earlier paper written in 1855, he wrote in 1860 a paper "On the Theory of Compund Colours, which demonstrates that color blindness results from a deficiency in sensitivity to one of the three primary colors. For this paper, he was awarded the Rumsford Medal of the Royal Society. He was elected a member of the society a year later.
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On the foundation of an earlier paper written in 1855, he wrote in 1860, a paper "On the Theory of Compund Colours," which demonstrated that color blindness results from a deficiency in sensitivity to one of the three primary colors. For this paper, he was awarded the Rumsford Medal of the Royal Society. He was elected a member of the society a year later.
  
 
====Kinetic theory====
 
====Kinetic theory====
 
{{main|Maxwell-Boltzmann distribution}}
 
{{main|Maxwell-Boltzmann distribution}}
One of Maxwell's most important achievements was his contribution to kinetic theory of gases. Originating in its modern form with [[Daniel Bernoulli]] in the 18th century, this theory was advanced by the successive labors of [[John Herapath]], [[John James Waterston]], [[James Joule]], and particularly [[Rudolf Clausius]], but it received enormous development from Maxwell, who in this field appeared as an experimenter (on the laws of gaseous friction) as well as a mathematician. Joule had calculated the speed of molecules, but it was left in the lap of Clausius to explain why gases did not diffuse as rapidly as their speed would indicate. Clausius said that the slowness of a scent, for example, to travel in the air, was due to the many collisions among molecules that would resist its transit. The average distance a molecule would travel between the collisions Clausius called the "mean free path."
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One of Maxwell's most important achievements was his contribution to kinetic theory of gases. Originating in its modern form with [[Daniel Bernoulli]] in the eighteenth century, this theory was advanced by the successive labors of [[John Herapath]], [[John James Waterston]], [[James Joule]], and particularly [[Rudolf Clausius]], but it received enormous development from Maxwell, who in this field appeared as an experimenter (on the laws of gaseous friction) as well as a mathematician. Joule had calculated the speed of molecules, but it was left in the lap of Clausius to explain why gases did not diffuse as rapidly as their speed would indicate. Clausius said that the slowness of a scent, for example, to travel in the air, was due to the many collisions among molecules that would resist its transit. The average distance a molecule would travel between the collisions Clausius called the "mean free path."
  
Inspired by Clausius's work, Maxwell, using experimental data on viscocity, heat conduction and diffusion in gases, along with a complex mathematical analysis of collisions of large numbers of molecules, calculated the mean free path of a molecule. This represented the first approximation of a measurement of atomic dimensions. Five years later, based on Maxwell's calculations, Josef Loschmidt published the first estimate of the actual size of a molecule.
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Inspired by Clausius's work, Maxwell, using experimental data on viscosity, heat conduction, and diffusion in gases, along with a complex mathematical analysis of collisions of large numbers of molecules, calculated the mean free path of a molecule. This represented the first approximation of a measurement of atomic dimensions. Five years later, based on Maxwell's calculations, Josef Loschmidt published the first estimate of the actual size of a molecule.
  
 
In 1866, Maxwell improved his treatment of the kinetic theory of gases, and published what is now called the Maxwell-Boltzmann distribution, which yields the fraction of gas molecules in a sample moving at a specified velocity at a given temperature.
 
In 1866, Maxwell improved his treatment of the kinetic theory of gases, and published what is now called the Maxwell-Boltzmann distribution, which yields the fraction of gas molecules in a sample moving at a specified velocity at a given temperature.
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In 1865, Maxwell moved to the estate he inherited from his father in [[Glenlair]], [[Kirkcudbrightshire]], Scotland, and in 1868, resigned his Chair of Physics and Astronomy at King's College, London.
 
In 1865, Maxwell moved to the estate he inherited from his father in [[Glenlair]], [[Kirkcudbrightshire]], Scotland, and in 1868, resigned his Chair of Physics and Astronomy at King's College, London.
  
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==== Electromagnetism====
  
 
==== Electromagnetism====
 
{{main|Maxwell's Equations}}
 
 
[[Image:Postcard-from-Maxwell-to-Tait.jpg|thumb|right|175px|A postcard from Maxwell to [[Peter Guthrie Tait|Peter Tait]].]]
 
[[Image:Postcard-from-Maxwell-to-Tait.jpg|thumb|right|175px|A postcard from Maxwell to [[Peter Guthrie Tait|Peter Tait]].]]
  
The greatest work of Maxwell's life was devoted to electricity. Maxwell's most important contribution was the extension and mathematical formulation of earlier work on [[electricity]] and [[magnetism]] by [[Michael Faraday]], [[André-Marie Ampère]], and others into a linked set of [[differential equation]]s (originally, 20 equations in 20 variables, later re-expressed in [[quaternion]]- and [[vector (spatial)|vector]]-based notations). These equations, which are now collectively known as [[Maxwell's equations]], were first presented to the Royal Society in 1864, and together describe the behaviour of both the [[electromagnetic field|electric and magnetic fields]], as well as their interactions with matter. Maxwell formulated these equations by assuming the existence of a displacement current which takes place in the dielectric separating the plates of a capacitor. This was an original contribution of Maxwell, and enabled him to treat the space between conductors as a medium with certain properties rather than just a vacuum.
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The greatest work of Maxwell's life was devoted to electricity. Maxwell's most important contribution was the extension and mathematical formulation of earlier work on [[electricity]] and [[magnetism]] by [[Michael Faraday]], [[André-Marie Ampère]], and others into a linked set of [[differential equation]]s (originally, 20 equations in 20 variables, later re-expressed in [[quaternion]]- and [[vector (spatial)|vector]]-based notations). These equations, which are now collectively known as [[Maxwell's equations]], were first presented to the Royal Society in 1864, and together describe the behavior of both the [[electromagnetic field|electric and magnetic fields]], as well as their interactions with matter. Maxwell formulated these equations by assuming the existence of a displacement current which takes place in the dielectric separating the plates of a capacitor. This was an original contribution of Maxwell, and enabled him to treat the space between conductors as a medium with certain properties rather than just a vacuum.
  
Maxwell [[Electromagnetic wave equation|showed]] that the equations predict the existence of [[electromagnetic radiation|wave]]s caused by oscillating electric and magnetic fields. Maxwell calculated the speed of such waves, finding that they would travel at a velocity of 310,740,000 [[m/s], roughly the same as the speed of light, which had already been measured. He concluded that light must be an electromagnetic phenomenon. Subsequent experimenters such as Heinrich Hertz and Oliver Lodge successfully generated and detected the electromagnetic waves predicted by Maxwell. Maxwell's quantitative connection between light and electromagnetism is considered one of the great triumphs of 19th century physics.
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Maxwell [[Electromagnetic wave equation|showed]] that the equations predict the existence of [[electromagnetic radiation|wave]]s caused by oscillating electric and magnetic fields. Maxwell calculated the speed of such waves, finding that they would travel at a velocity of 310,740,000 [[m/s]], roughly the same as the speed of light, which had already been measured. He concluded that light must be an electromagnetic phenomenon. Subsequent experimenters such as Heinrich Hertz and Oliver Lodge successfully generated and detected the electromagnetic waves predicted by Maxwell. Maxwell's quantitative connection between light and electromagnetism is considered one of the great triumphs of nineteenth century physics.
  
 
Maxwell's assumption that an actual medium existed that carried the light waves was later challenged by experiments failing to show any movement of the earth with respect to this medium, and, on a theoretical basis, by Einstein's theory of relativity, which assumes that light travels at the same speed irrespective of the velocity of the observer.  
 
Maxwell's assumption that an actual medium existed that carried the light waves was later challenged by experiments failing to show any movement of the earth with respect to this medium, and, on a theoretical basis, by Einstein's theory of relativity, which assumes that light travels at the same speed irrespective of the velocity of the observer.  
  
===Later years, death and afterwards===
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===Later years, death, and afterwards===
 
[[Image:Tartan Ribbon.jpg|thumb|The first permanent colour photograph, taken by James Clerk Maxwell in 1861.]]
 
[[Image:Tartan Ribbon.jpg|thumb|The first permanent colour photograph, taken by James Clerk Maxwell in 1861.]]
Maxwell also made contributions to the area of [[optics]] and color vision, being credited with the discovery that color [[photograph]]s could be formed using red, green, and blue filters. He had the [[photographer]] [[Thomas Sutton (photographer)|Thomas Sutton]] photograph a [[tartan]] ribbon three times, each time with a different colour filter over the lens. The three images were developed and then projected onto a screen with three different projectors, each equipped with the same colour filter used to take its image. When brought into focus, the three images formed a full colour image. The three photographic plates now reside in a small museum at 14 India Street, Edinburgh, the house where Maxwell was born.
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Maxwell also made contributions to the area of [[optics]] and color vision, being credited with the discovery that color [[photograph]]s could be formed using red, green, and blue filters. He had the [[photographer]] [[Thomas Sutton (photographer)|Thomas Sutton]] photograph a [[tartan]] ribbon three times, each time with a different color filter over the lens. The three images were developed and then projected onto a screen with three different projectors, each equipped with the same color filter used to take its image. When brought into focus, the three images formed a full color image. The three photographic plates now reside in a small museum at 14 India Street, Edinburgh, the house where Maxwell was born.
  
 
Maxwell wrote an admirable textbook, ''Theory of Heat'' (1871), and an elementary treatise, ''Matter and Motion'' (1876), which serves as an introduction to physics.  
 
Maxwell wrote an admirable textbook, ''Theory of Heat'' (1871), and an elementary treatise, ''Matter and Motion'' (1876), which serves as an introduction to physics.  
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Much of Maxwell's time was consumed with the editing of Cavendish's papers. This project took him away from what might have been more fruitful ventures in pure science. He died in Cambridge of abdominal cancer at the age of 48. He is buried at [[Parton, Dumfries and Galloway|Parton]] Kirk, near [[Castle Douglas]] in [[Galloway]], [[Scotland]].
 
Much of Maxwell's time was consumed with the editing of Cavendish's papers. This project took him away from what might have been more fruitful ventures in pure science. He died in Cambridge of abdominal cancer at the age of 48. He is buried at [[Parton, Dumfries and Galloway|Parton]] Kirk, near [[Castle Douglas]] in [[Galloway]], [[Scotland]].
  
The extended biography ''The Life of James Clerk Maxwell'', by his former schoolfellow and lifelong friend Professor [[Lewis Campbell]], was published in 1882 and his collected works, including the series of articles on the properties of matter, such as ''Atom'', ''Attraction'', ''Capillary Action'', ''Diffusion'', ''Ether'', etc., were issued in two volumes by the [[Cambridge University Press]] in 1890.
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The extended biography ''The Life of James Clerk Maxwell,'' by his former schoolfellow and lifelong friend Professor [[Lewis Campbell]], was published in 1882, and his collected works, including the series of articles on the properties of matter, such as ''Atom,'' ''Attraction,'' ''Capillary Action,'' ''Diffusion,'' ''Ether,'' etc., were issued in two volumes by the [[Cambridge University Press]] in 1890.
  
 
===Personality===
 
===Personality===
 
From the start of his childhood, religion touched all aspects of Maxwell's life. Both his father and mother were devout churchgoers (Presbyterian and Episcopalian). The occasional reference to the divine in his writings indicates that his faith was a guiding force in his life.
 
From the start of his childhood, religion touched all aspects of Maxwell's life. Both his father and mother were devout churchgoers (Presbyterian and Episcopalian). The occasional reference to the divine in his writings indicates that his faith was a guiding force in his life.
  
As a great lover of British poetry, Maxwell memorized poems and wrote his own. The best known is ''Rigid Body Sings'' closely based on ''[[Comin' Through the Rye]]'' by [[Robert Burns]], which he apparently used to sing while accompanying himself on a guitar. It has the immortal opening lines[http://www.haverford.edu/physics-astro/songs/rigid.htm]:  
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As a great lover of British poetry, Maxwell memorized poems and wrote his own. The best known is "Rigid Body Sings," closely based on "[[Comin' Through the Rye]]" by [[Robert Burns]], which he apparently used to sing while accompanying himself on a guitar. It has the immortal opening lines:  
  
 
:''Gin a body meet a body''
 
:''Gin a body meet a body''
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Maxwell was ranked #24 on [[Michael H. Hart]]'s [[The 100|list of the most influential figures in history]] and #91 on the [[BBC]] poll of the [[100 Greatest Britons]].  
 
Maxwell was ranked #24 on [[Michael H. Hart]]'s [[The 100|list of the most influential figures in history]] and #91 on the [[BBC]] poll of the [[100 Greatest Britons]].  
 
=== Homage ===
 
=== Homage ===
 
<div style="font-size:115%">
 
{{rquote|right|[The work of Maxwell]...[is] the most profound and the most fruitful that physics has experienced since the time of [[Isaac Newton|Newton]].|[[Albert Einstein]]|The Sunday Post<ref>McFall, Patrick
 
[http://www.maxwellyear2006.org/html/press_coverage.html "Brainy young James wasn't so daft after all"] in The Sunday Post, April 23 2006</ref>}}</div>
 
 
 
* The '''[[maxwell (unit)|maxwell]]''' (Mx), a compound derived [[CGS]] unit measuring [[magnetic flux]] (commonly abbreviated as ''f'').
 
* The '''[[maxwell (unit)|maxwell]]''' (Mx), a compound derived [[CGS]] unit measuring [[magnetic flux]] (commonly abbreviated as ''f'').
* '''[[Maxwell Montes]]''', a mountain range on [[Venus (planet)|Venus]], one of only three features on the planet that are not given female names.
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* '''[[Maxwell Montes]],''' a mountain range on [[Venus (planet)|Venus]], one of only three features on the planet that are not given female names.
* The '''[[James Clerk Maxwell Telescope]]''', the largest sub-mm astronomical [[telescope]] in the world, with a diameter of 15 metres.  
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* The '''[[James Clerk Maxwell Telescope]],''' the largest sub-mm astronomical [[telescope]] in the world, with a diameter of 15 meters.  
* The 1977 '''James Clerk Maxwell''' building of the [[University of Edinburgh]], housing the schools of [[mathematics]], [[physics]], [[computer science]] and [[meteorology]].
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* The 1977 '''James Clerk Maxwell''' building of the [[University of Edinburgh]], housing the schools of [[mathematics]], [[physics]], [[computer science]], and [[meteorology]].
 
* The '''James Clerk Maxwell building''' at the Waterloo campus of [[King's College London]], in commemoration of him being Professor of Natural Philosophy at King's from 1860 to 1865. The university also has a chair in Physics named after him, and a society for undergraduate physicists.
 
* The '''James Clerk Maxwell building''' at the Waterloo campus of [[King's College London]], in commemoration of him being Professor of Natural Philosophy at King's from 1860 to 1865. The university also has a chair in Physics named after him, and a society for undergraduate physicists.
* The £4 million '''James Clerk Maxwell Centre''' of the [[Edinburgh Academy]] was opened in 2006 to mark his 175th anniversary.
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* The £4 million '''James Clerk Maxwell Centre''' of the [[Edinburgh Academy]] was opened in 2006, to mark his 175th anniversary.
 
* James Clerk Maxwell Road in [[Cambridge]], which runs along one side of the [[Cavendish Laboratory]].
 
* James Clerk Maxwell Road in [[Cambridge]], which runs along one side of the [[Cavendish Laboratory]].
 
* The [[University of Salford]]'s main building has also been named after him.
 
* The [[University of Salford]]'s main building has also been named after him.
* James Clerk Maxwell was featured in the 1995 SNES game '''Tales of Phantasia''' as a summon that can aid the party in battle. His ability consisted of electromagnetic spheres that attacked the enemy.
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* James Clerk Maxwell was featured in the 1995 Super Nintendo Entertainment System game, '''Tales of Phantasia,''' as a summon that can aid the party in battle. His ability consisted of electromagnetic spheres that attacked the enemy.
  
 
== Publications ==
 
== Publications ==
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*Maxwell, James Clerk, "''[http://www.vacuum-physics.com/Maxwell/maxwell_oplf.pdf On Physical Lines of Force]''." 1861.
 
*Maxwell, James Clerk, "''[http://www.vacuum-physics.com/Maxwell/maxwell_oplf.pdf On Physical Lines of Force]''." 1861.
 
*Maxwell, James Clerk, "''[[A Dynamical Theory of the Electromagnetic Field]]''." 1865.
 
*Maxwell, James Clerk, "''[[A Dynamical Theory of the Electromagnetic Field]]''." 1865.
** http://www.zpenergy.com/downloads/Maxwell_1864_1.pdf
 
** http://www.zpenergy.com/downloads/Maxwell_1864_2.pdf
 
** http://www.zpenergy.com/downloads/Maxwell_1864_3.pdf
 
** http://www.zpenergy.com/downloads/Maxwell_1864_4.pdf
 
** http://www.zpenergy.com/downloads/Maxwell_1864_5.pdf
 
** http://www.zpenergy.com/downloads/Maxwell_1864_6.pdf
 
 
*Maxwell, James Clerk, "''[http://www.ee.adfa.edu.au/staff/hrp/historicalpapers/ongovernors.pdf On Governors]''".From the Proceedings of the Royal Society, Vol. 16 (1867-1868) pp. 270-283.
 
*Maxwell, James Clerk, "''[http://www.ee.adfa.edu.au/staff/hrp/historicalpapers/ongovernors.pdf On Governors]''".From the Proceedings of the Royal Society, Vol. 16 (1867-1868) pp. 270-283.
 
*Maxwell, James Clerk, "''[[Theory of Heat]]''." 1871.
 
*Maxwell, James Clerk, "''[[Theory of Heat]]''." 1871.
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* Maxwell, James Clerk, "''On the Results of Bernoulli's Theory of Gases as Applied to their Internal Friction, their Diffusion, and their Conductivity for Heat''."
 
* Maxwell, James Clerk, "''On the Results of Bernoulli's Theory of Gases as Applied to their Internal Friction, their Diffusion, and their Conductivity for Heat''."
 
* Maxwell, James Clerk, "[[Aether theories|Ether]]," Encyclopedia Britannica, Ninth Edition (1875-89).
 
* Maxwell, James Clerk, "[[Aether theories|Ether]]," Encyclopedia Britannica, Ninth Edition (1875-89).
 
== See also ==
 
* [[Maxwell's demon]]
 
* [[Maxwell's equations]]
 
* [[Maxwell's theorem]] (a theorem in [[probability theory]])
 
* [[Maxwell-Boltzmann distribution]]
 
* [[Scientific method]]
 
* [[Wave-particle duality]]
 
* [[Electromagnetism]]
 
* [[Light]]
 
* [[Photoelectric effect]]
 
* [[Radiation pressure]]
 
* [[Electron]]
 
* [[Radio]]
 
* [[Microwave]]
 
* [[Radar]]
 
* [[Albert Einstein]]
 
* [[Hans Christian Ørsted]]
 
* [[Heinrich Rudolf Hertz]]
 
* [[Michael Faraday]]
 
* [[Willard Gibbs]]
 
* [[Joseph John Thomson]]
 
* [[Hendrik Lorentz]]
 
* [[George Gabriel Stokes]]
 
* [[Lewis Campbell]]
 
* [[Solar nebula]]
 
* [[Venus (planet)|Venus]]
 
  
 
== Notes ==
 
== Notes ==
<references />
+
<references/>
  
 
== References ==
 
== References ==
 
+
* Abbott, David, ed. ''The Biographical Dictionary of Scientists''. New York: Peter Bedrick Books, 1984. ISBN 0911745815
* Abbott, David, ed. ''The Biographical Dictionary of Scientists''. New York: Peter Bedrick Books, 1984. ISBN 0911745815.
+
* Gillispie, C.C., ed. 1973. ''Dictionary of Scientific Biography''. New York: Charles Scribner's Sons. ISBN 0684313200
 
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* Porter, R., ed. 1994. ''The Biographical Dictionary of Scientists''. New York: Oxford University Press. ISBN 0195210832
* Gillispie, C.C., ed. 1973. ''Dictionary of Scientific Biography''. New York: Charles Scribner's Sons. ISBN 0684313200.
 
 
 
* Porter, R., ed. 1994. ''The Biographical Dictionary of Scientists'', 2nd ed. New York: Oxford University Press. ISBN 0195210832.
 
  
 
== External links ==
 
== External links ==
 
===Biographical-related links===
 
===Biographical-related links===
  
*{{gutenberg author|id=James_Clerk_Maxwell|name=James Clerk Maxwell}}
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*{{gutenberg author|id=James_Clerk_Maxwell|name=James Clerk Maxwell}}. Retrieved March 19, 2008.
  
*Campbell, Lewis, "''[http://www.sonnetusa.com/bio/maxwell.asp The Life of James Clerk Maxwell]''." 1882. [Digital Preservation]  
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*Campbell, Lewis, "''[http://www.sonnetusa.com/bio/maxwell.asp The Life of James Clerk Maxwell]''." 1882. [Digital Preservation]. Retrieved March 19, 2008.
*{{MacTutor Biography|id=Maxwell}}
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*{{MacTutor Biography|id=Maxwell}}. Retrieved March 19, 2008.
*[http://www.thecore.nus.edu.sg/landow/victorian/science/maxwell1.html Victorian Web's Maxwell]
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*[http://www.thecore.nus.edu.sg/landow/victorian/science/maxwell1.html Victorian Web's Maxwell]. Retrieved March 19, 2008.
*[http://39.1911encyclopedia.org/M/MA/MAXWELL_JAMES_CLERK.htm 1911 ''Britannica Maxwell]''
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*[http://39.1911encyclopedia.org/M/MA/MAXWELL_JAMES_CLERK.htm 1911 ''Britannica Maxwell]''. Retrieved March 19, 2008.
  
 
'''James Clerk Maxwell Foundation'''
 
'''James Clerk Maxwell Foundation'''
*[http://www.clerkmaxwellfoundation.org/ The James Clerk Maxwell Foundation] Including a virtual tour of the museum.
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*[http://www.clerkmaxwellfoundation.org/ The James Clerk Maxwell Foundation] Including a virtual tour of the museum. Retrieved March 19, 2008.
  
 
'''Maxwell's 175th Anniversary'''
 
'''Maxwell's 175th Anniversary'''
*[http://www.maxwellyear2006.org/ Maxwell Year 2006] Events planned to mark 175th anniversary of Clerk Maxwell's birth.
+
*[http://www.maxwellyear2006.org/ Maxwell Year 2006] Events planned to mark 175th anniversary of Clerk Maxwell's birth. Retrieved March 19, 2008.
*[http://www.edinburghacademy.org.uk/curriculum/chemistry/sciencecentre.htm James Clerk Maxwell Centre, Edinburgh Academy] Opened in Maxwell's 175th anniversary year.
+
*[http://www.edinburghacademy.org.uk/curriculum/chemistry/sciencecentre.htm James Clerk Maxwell Centre, Edinburgh Academy] Opened in Maxwell's 175th anniversary year. Retrieved March 19, 2008.
  
 
'''Song lyrics and poetry'''
 
'''Song lyrics and poetry'''
*[http://www.haverford.edu/physics-astro/songs/rigid.htm Rigid Body Sings] song lyrics by Maxwell
+
*[http://www.haverford.edu/physics-astro/songs/rigid.htm Rigid Body Sings] song lyrics by Maxwell. Retrieved March 19, 2008.
*[http://rpo.library.utoronto.ca/poet/400.html RPO—Selected Poetry of James Clerk Maxwell (1831-1879)]
+
*[http://rpo.library.utoronto.ca/poet/400.html RPO—Selected Poetry of James Clerk Maxwell (1831-1879)]. Retrieved March 19, 2008.
  
 
'''Maxwell - Christian/Creationist interpretation'''
 
'''Maxwell - Christian/Creationist interpretation'''
*[http://silas.psfc.mit.edu/Maxwell/maxwell.html Maxwell and the Christian Proposition]
+
*[http://silas.psfc.mit.edu/Maxwell/maxwell.html Maxwell and the Christian Proposition]. Retrieved March 19, 2008.
*[http://www.charlespetzold.com/etc/MaxwellMoleculesAndEvolution.html Maxwell, Molecules, and Evolution] Explains the misuse of Maxwell's equations by Creationists
+
*[http://www.charlespetzold.com/etc/MaxwellMoleculesAndEvolution.html Maxwell, Molecules, and Evolution] Explains the misuse of Maxwell's equations by Creationists. Retrieved March 19, 2008.
  
 
'''Photos'''
 
'''Photos'''
*[http://www.edinphoto.org.uk/1_P/1_photographers_maxwell.htm http://www.edinphoto.org.uk/1_P/1_photographers_maxwell.htm] - Photos and stories from the James Clerk Maxwell Foundation.
+
*[http://www.edinphoto.org.uk/1_P/1_photographers_maxwell.htm.] Retrieved March 19, 2008.
 +
*[http://www.edinphoto.org.uk/1_P/1_photographers_maxwell.htm] - Photos and stories from the James Clerk Maxwell Foundation. Retrieved March 19, 2008.
  
 
===Academic-related links===
 
===Academic-related links===
 
'''Mathematics'''
 
'''Mathematics'''
* [http://www.cut-the-knot.org/Curriculum/Geometry/Maxwell.shtml Maxwell's Theorem]
+
* [http://www.cut-the-knot.org/Curriculum/Geometry/Maxwell.shtml Maxwell's Theorem]. Retrieved March 19, 2008.
*Jack, Peter Michael, "''[http://www.hypercomplex.com/research/emgrav/hypcx-p20001015.html Maxwell-equations: A Brief Note]''." Physical space as a quaternion structure - I.
+
*Jack, Peter Michael, "''[http://www.hypercomplex.com/research/emgrav/hypcx-p20001015.html Maxwell-equations: A Brief Note]''." Physical space as a quaternion structure - I. Retrieved March 19, 2008.
*[http://www.glenlair.org.uk Glenlair Today]
+
*[http://www.glenlair.org.uk Glenlair Today]. Retrieved March 19, 2008.
*[http://scienceworld.wolfram.com/biography/Maxwell.html Wolfram Research's Maxwell]
+
*[http://scienceworld.wolfram.com/biography/Maxwell.html Wolfram Research's Maxwell]. Retrieved March 19, 2008.
  
 
'''''Treatise On Electricity And Magnetism'' - 1873 Edition'''
 
'''''Treatise On Electricity And Magnetism'' - 1873 Edition'''
*[http://www.antiquebooks.net/readpage.html#maxwell Maxwell's Treatise on Electricity and Magnetism Vols 1 & 2, and his introductory textbook on Matter and Motion]  
+
*[http://www.antiquebooks.net/readpage.html#maxwell Maxwell's Treatise on Electricity and Magnetism Vols 1 & 2, and his introductory textbook on Matter and Motion]. Retrieved March 19, 2008.
  
 
'''Versions of Maxwell's 1873 treatise readable online'''
 
'''Versions of Maxwell's 1873 treatise readable online'''
*[http://posner.library.cmu.edu/Posner/books/book.cgi?call=537_M46T_1873_VOL._1 A Treatise on Electricity And Magnetism - Volume 1 - 1873] - Posner Memorial Collection - Carnegie Mellon University
+
*[http://posner.library.cmu.edu/Posner/books/book.cgi?call=537_M46T_1873_VOL._1 A Treatise on Electricity And Magnetism - Volume 1 - 1873] - Posner Memorial Collection - Carnegie Mellon University. Retrieved March 19, 2008.
*[http://www.openlibrary.org/details/electricandmagne01maxwrich Treatise on Electricty and Magnetism - Vol 1. (1873 Edition)] - online readable version at openlibrary.org
+
*[http://www.openlibrary.org/details/electricandmagne01maxwrich Treatise on Electricty and Magnetism - Vol 1. (1873 Edition)] - online readable version at openlibrary.org. Retrieved March 19, 2008.
*[http://www.archive.org/details/electricandmagne01maxwrich Volume 1 - 1873] - Internet Archive Mirror
+
*[http://www.archive.org/details/electricandmagne01maxwrich Volume 1 - 1873] - Internet Archive Mirror. Retrieved March 19, 2008.
*[http://posner.library.cmu.edu/Posner/books/book.cgi?call=537_M46T_1873_VOL._2 A Treatise on Electricity And Magnetism - Volume 2 - 1873] - Posner Memorial Collection - Carnegie Mellon University
+
*[http://posner.library.cmu.edu/Posner/books/book.cgi?call=537_M46T_1873_VOL._2 A Treatise on Electricity And Magnetism - Volume 2 - 1873] - Posner Memorial Collection - Carnegie Mellon University. Retrieved March 19, 2008.
*[http://www.openlibrary.org/details/electricandmagne02maxwrich Treatise on Electricity and Magnetism - Vol 2. (1873 Edition)] - online readable version at openlibrary.org
+
*[http://www.openlibrary.org/details/electricandmagne02maxwrich Treatise on Electricity and Magnetism - Vol 2. (1873 Edition)] - online readable version at openlibrary.org. Retrieved March 19, 2008.
*[http://www.archive.org/details/electricandmag02maxwrich Volume 2  - 1873] - Internet Archive Mirror
+
*[http://www.archive.org/details/electricandmag02maxwrich Volume 2  - 1873] - Internet Archive Mirror. Retrieved March 19, 2008.
  
 
'''Supplementary material for understanding Maxwell's 1873 treatise'''
 
'''Supplementary material for understanding Maxwell's 1873 treatise'''
*[http://www.emis.de/classics/Hamilton/OnQuat.pdf On Quaternions, Or On A New System Of Imaginaries In Algebra] by William Rowan Hamilton - PDF File
+
*[http://www.emis.de/classics/Hamilton/OnQuat.pdf On Quaternions, Or On A New System Of Imaginaries In Algebra] by William Rowan Hamilton - PDF File. Retrieved March 19, 2008.
*[http://books.google.com/books?vid=OCLC38706113&id=TCwPAAAAIAAJ Lectures On Quaternions] by William Rowan Hamilton(Google Books)
+
*[http://books.google.com/books?vid=OCLC38706113&id=TCwPAAAAIAAJ Lectures On Quaternions] by William Rowan Hamilton(Google Books). Retrieved March 19, 2008.
*[http://www.archive.org/details/117770257 An Elementary Treatise On Quaternions] by Peter Guthrie Tait - Archive.org
+
*[http://www.archive.org/details/117770257 An Elementary Treatise On Quaternions] by Peter Guthrie Tait - Archive.org. Retrieved March 19, 2008.
*[http://www.openlibrary.org/details/117770257 Open Library Edition]
+
*[http://www.openlibrary.org/details/117770257 Open Library Edition]. Retrieved March 19, 2008.
*[http://books.google.com/books?vid=OCLC24370997&id=a6gAAAAAMAAJ Introduction to Quaternions] by Phillip Kelland & Peter Guthrie Tait(Google Books)
+
*[http://books.google.com/books?vid=OCLC24370997&id=a6gAAAAAMAAJ Introduction to Quaternions] by Phillip Kelland & Peter Guthrie Tait(Google Books). Retrieved March 19, 2008.
*[http://www.zpenergy.com/modules.php?name=Downloads&d_op=getit&lid=60 Original Maxwell Equations] - Maxwell's 20 Equations in 20 Unknowns - PDF
+
*[http://www.zpenergy.com/modules.php?name=Downloads&d_op=getit&lid=60 Original Maxwell Equations] - Maxwell's 20 Equations in 20 Unknowns - PDF. Retrieved March 19, 2008.
*[http://books.google.com/books?id=5HE_cmxXt2MC&vid=02IWHrbcLC9ECI_wQx&dq=Proceedings+of+the+Royal+Society+Of+London+Vol+XIII&ie=UTF-8&as_brr=1&jtp=531 A Dynamical Theory Of The Electromagnetic Field - 1865] Maxwell's 1865 paper describing his 20 Equations in 20 Unknowns - Predecessor to the 1873 Treatise
+
*[http://books.google.com/books?id=5HE_cmxXt2MC&vid=02IWHrbcLC9ECI_wQx&dq=Proceedings+of+the+Royal+Society+Of+London+Vol+XIII&ie=UTF-8&as_brr=1&jtp=531 A Dynamical Theory Of The Electromagnetic Field - 1865] Maxwell's 1865 paper describing his 20 Equations in 20 Unknowns - Predecessor to the 1873 Treatise. Retrieved March 19, 2008.
  
 
{{DEFAULTSORT:Maxwell, James Clerk}}
 
{{DEFAULTSORT:Maxwell, James Clerk}}

Revision as of 21:44, 19 March 2008

James Clerk Maxwell

James Clerk Maxwell.png
James Clerk Maxwell
Born

13 June, 1831
Edinburgh, Scotland

Died 5 November, 1879

Cambridge, England

Residence Scotland
Nationality Scottish
Field Mathematician and physicist
Alma mater University of Cambridge
Known for Maxwell's Equations, The Maxwell Distribution
Notable prizes Rumford Medal, Adams Prize
Religious stance Christian

James Clerk Maxwell (June 13, 1831 – November 5, 1879) was a brilliant Scottish mathematician and theoretical physicist. He developed a mathematical expression, called Maxwell's equations, that described the actions of electricity and magnetism and their interrelationship, and from these predicted the existence of electromagnetic waves traveling at the speed of light. Maxwell was also the first to peer into the dimensions of the molecular world by calculating the average distance a gas molecule travels before it hits another molecule. Maxwell also produced the first color photograph.

Biography

Early life and education

James Clerk Maxwell was born on June 13, 1831, in Edinburgh, Scotland, to John Clerk and Frances (née Cay) Maxwell. His birthplace, at 15 India Street, is now the location of the International Centre for Mathematical Sciences.

Maxwell grew up on his father's estate in Dumfrieshire, in the Scottish countryside. Maxwell's parents quickly recognized their son's inquisitive nature. His mother took responsibility for his early education, which in Victorian times was largely the job of the woman of the house. She died in 1839, however, when Maxwell was only eight. His father then undertook the education of his son with the aid of his sister-in-law, Jane Cay, both of whom played pivotal roles in Maxwell's life. His formal education began under the guidance of a hired tutor, but finding this arrangement less than satisfactory, John Maxwell sent his son to the Edinburgh Academy.

Maxwell was captivated by geometry at an early age. Much of his talent went unnoticed however, and his academic work remained unremarkable until, in 1845, at the age of 13, he won the school's mathematical medal, and first prizes for English and for English verse. His first piece of original work, at the age of 14, was a paper describing mechanical means of drawing mathematical curves with a piece of twine, and properties of ellipses and curves with more than two foci. This work, Oval Curves, was published in an issue of the Royal Society of Edinburgh, and although it shows the curiosity of Maxwell at a young age, it is important to note that the work itself was not mathematically profound. Unlike other great minds, such as Gauss, Pascal, or Mozart, Maxwell was not a child prodigy. Rather, his genius would slowly mature.

Middle years

A young Maxwell at university.

Maxwell left the Academy in 1847, and enrolled at the University of Edinburgh. He completed his studies at Edinburgh in natural philosophy, moral philosophy, and mental philosophy under Sir William Hamilton, 9th Baronet. In his eighteenth year, he contributed a paper to Transactions of the Royal Society of Edinburgh, "On the Equilibrium of Elastic Solids."

In 1850, Maxwell left for Cambridge University and initially attended Peterhouse, but eventually left for Trinity College where he believed it would be easier to obtain a fellowship. In November 1851, Maxwell studied under the tutor William Hopkins, (nicknamed the "wrangler maker").

In 1854, Maxwell graduated with a degree as second wrangler in mathematics from Trinity (scoring second-highest in the final mathematics examination) and was declared equal with the senior wrangler of his year in the more exacting ordeal of the Smith's prize examination. Immediately after taking his degree, he read to the Cambridge Philosophical Society a novel memoir, On the Transformation of Surfaces by Bending. This is one of the few purely mathematical papers he published, and it exhibited at once to experts the full genius of its author. About the same time, his paper, On Faraday's Lines of Force appeared, in which he gave the first indication of some of the electrical investigations which culminated in the greatest work of his life.

In 1855, Maxwell was appointed to the chair of Natural Philosophy at Marischal College, Aberdeen. In 1858, he married Katherine Mary Dewarin, the daughter of the principal of Marischal College. The couple had no children, but Maxwell often enjoyed the assistance of his wife in his duties. When Marischal merged with another college to form the University of Aberdeen, Maxwell's position was eliminated, but he soon found another, joining the teaching staff of Kings' College, London, as professor of natural philosophy.

In 1859, Maxwell won the Adams prize in Cambridge for an original essay, On the Stability of Saturn's Rings, in which he concluded the rings could not be completely solid or fluid. Maxwell demonstrated that the rings could only be stable if they consisted of numerous small solid particles, which he called "brickbats." He also mathematically disproved the nebular hypothesis (which stated that the solar system formed through the progressive condensation of a purely gaseous nebula), forcing the theory to account for additional portions of small solid particles.

On the foundation of an earlier paper written in 1855, he wrote in 1860, a paper "On the Theory of Compund Colours," which demonstrated that color blindness results from a deficiency in sensitivity to one of the three primary colors. For this paper, he was awarded the Rumsford Medal of the Royal Society. He was elected a member of the society a year later.

Kinetic theory

One of Maxwell's most important achievements was his contribution to kinetic theory of gases. Originating in its modern form with Daniel Bernoulli in the eighteenth century, this theory was advanced by the successive labors of John Herapath, John James Waterston, James Joule, and particularly Rudolf Clausius, but it received enormous development from Maxwell, who in this field appeared as an experimenter (on the laws of gaseous friction) as well as a mathematician. Joule had calculated the speed of molecules, but it was left in the lap of Clausius to explain why gases did not diffuse as rapidly as their speed would indicate. Clausius said that the slowness of a scent, for example, to travel in the air, was due to the many collisions among molecules that would resist its transit. The average distance a molecule would travel between the collisions Clausius called the "mean free path."

Inspired by Clausius's work, Maxwell, using experimental data on viscosity, heat conduction, and diffusion in gases, along with a complex mathematical analysis of collisions of large numbers of molecules, calculated the mean free path of a molecule. This represented the first approximation of a measurement of atomic dimensions. Five years later, based on Maxwell's calculations, Josef Loschmidt published the first estimate of the actual size of a molecule.

In 1866, Maxwell improved his treatment of the kinetic theory of gases, and published what is now called the Maxwell-Boltzmann distribution, which yields the fraction of gas molecules in a sample moving at a specified velocity at a given temperature.

In 1865, Maxwell moved to the estate he inherited from his father in Glenlair, Kirkcudbrightshire, Scotland, and in 1868, resigned his Chair of Physics and Astronomy at King's College, London.

Electromagnetism

A postcard from Maxwell to Peter Tait.

The greatest work of Maxwell's life was devoted to electricity. Maxwell's most important contribution was the extension and mathematical formulation of earlier work on electricity and magnetism by Michael Faraday, André-Marie Ampère, and others into a linked set of differential equations (originally, 20 equations in 20 variables, later re-expressed in quaternion- and vector-based notations). These equations, which are now collectively known as Maxwell's equations, were first presented to the Royal Society in 1864, and together describe the behavior of both the electric and magnetic fields, as well as their interactions with matter. Maxwell formulated these equations by assuming the existence of a displacement current which takes place in the dielectric separating the plates of a capacitor. This was an original contribution of Maxwell, and enabled him to treat the space between conductors as a medium with certain properties rather than just a vacuum.

Maxwell showed that the equations predict the existence of waves caused by oscillating electric and magnetic fields. Maxwell calculated the speed of such waves, finding that they would travel at a velocity of 310,740,000 m/s, roughly the same as the speed of light, which had already been measured. He concluded that light must be an electromagnetic phenomenon. Subsequent experimenters such as Heinrich Hertz and Oliver Lodge successfully generated and detected the electromagnetic waves predicted by Maxwell. Maxwell's quantitative connection between light and electromagnetism is considered one of the great triumphs of nineteenth century physics.

Maxwell's assumption that an actual medium existed that carried the light waves was later challenged by experiments failing to show any movement of the earth with respect to this medium, and, on a theoretical basis, by Einstein's theory of relativity, which assumes that light travels at the same speed irrespective of the velocity of the observer.

Later years, death, and afterwards

The first permanent colour photograph, taken by James Clerk Maxwell in 1861.

Maxwell also made contributions to the area of optics and color vision, being credited with the discovery that color photographs could be formed using red, green, and blue filters. He had the photographer Thomas Sutton photograph a tartan ribbon three times, each time with a different color filter over the lens. The three images were developed and then projected onto a screen with three different projectors, each equipped with the same color filter used to take its image. When brought into focus, the three images formed a full color image. The three photographic plates now reside in a small museum at 14 India Street, Edinburgh, the house where Maxwell was born.

Maxwell wrote an admirable textbook, Theory of Heat (1871), and an elementary treatise, Matter and Motion (1876), which serves as an introduction to physics.

James and Katherine Maxwell, 1869.

In 1871, Maxwell was appointed the first Cavendish Professor of Physics at Cambridge. Maxwell was put in charge of the development of the Cavendish Laboratory. One of Maxwell's last contributions was the editing (with copious original notes) of the electrical researches of Henry Cavendish, from which it appeared that Cavendish researched such questions as the mean density of the earth and the composition of water.

Much of Maxwell's time was consumed with the editing of Cavendish's papers. This project took him away from what might have been more fruitful ventures in pure science. He died in Cambridge of abdominal cancer at the age of 48. He is buried at Parton Kirk, near Castle Douglas in Galloway, Scotland.

The extended biography The Life of James Clerk Maxwell, by his former schoolfellow and lifelong friend Professor Lewis Campbell, was published in 1882, and his collected works, including the series of articles on the properties of matter, such as Atom, Attraction, Capillary Action, Diffusion, Ether, etc., were issued in two volumes by the Cambridge University Press in 1890.

Personality

From the start of his childhood, religion touched all aspects of Maxwell's life. Both his father and mother were devout churchgoers (Presbyterian and Episcopalian). The occasional reference to the divine in his writings indicates that his faith was a guiding force in his life.

As a great lover of British poetry, Maxwell memorized poems and wrote his own. The best known is "Rigid Body Sings," closely based on "Comin' Through the Rye" by Robert Burns, which he apparently used to sing while accompanying himself on a guitar. It has the immortal opening lines:

Gin a body meet a body
Flyin' through the air.
Gin a body hit a body,
Will it fly? And where?

A collection of his poems was published by his friend Lewis Campbell in 1882.

Honors

Maxwell was ranked #24 on Michael H. Hart's list of the most influential figures in history and #91 on the BBC poll of the 100 Greatest Britons.

Homage

  • The maxwell (Mx), a compound derived CGS unit measuring magnetic flux (commonly abbreviated as f).
  • Maxwell Montes, a mountain range on Venus, one of only three features on the planet that are not given female names.
  • The James Clerk Maxwell Telescope, the largest sub-mm astronomical telescope in the world, with a diameter of 15 meters.
  • The 1977 James Clerk Maxwell building of the University of Edinburgh, housing the schools of mathematics, physics, computer science, and meteorology.
  • The James Clerk Maxwell building at the Waterloo campus of King's College London, in commemoration of him being Professor of Natural Philosophy at King's from 1860 to 1865. The university also has a chair in Physics named after him, and a society for undergraduate physicists.
  • The £4 million James Clerk Maxwell Centre of the Edinburgh Academy was opened in 2006, to mark his 175th anniversary.
  • James Clerk Maxwell Road in Cambridge, which runs along one side of the Cavendish Laboratory.
  • The University of Salford's main building has also been named after him.
  • James Clerk Maxwell was featured in the 1995 Super Nintendo Entertainment System game, Tales of Phantasia, as a summon that can aid the party in battle. His ability consisted of electromagnetic spheres that attacked the enemy.

Publications

  • Maxwell, James Clerk, "On the Description of Oval Curves, and those having a plurality of Foci." Proceedings of the Royal Society of Edinburgh, Vol. ii. 1846.
  • Maxwell, James Clerk, "Illustrations of the Dynamical Theory of Gases." 1860.
  • Maxwell, James Clerk, "On Physical Lines of Force." 1861.
  • Maxwell, James Clerk, "A Dynamical Theory of the Electromagnetic Field." 1865.
  • Maxwell, James Clerk, "On Governors".From the Proceedings of the Royal Society, Vol. 16 (1867-1868) pp. 270-283.
  • Maxwell, James Clerk, "Theory of Heat." 1871.
  • Maxwell, James Clerk, "A Treatise on Electricity and Magnetism." Clarendon Press, Oxford. 1873.
  • Maxwell, James Clerk, "Molecules." Nature, September, 1873.
  • Maxwell, James Clerk, "Matter and Motion," 1876.
  • Maxwell, James Clerk, "On the Results of Bernoulli's Theory of Gases as Applied to their Internal Friction, their Diffusion, and their Conductivity for Heat."
  • Maxwell, James Clerk, "Ether," Encyclopedia Britannica, Ninth Edition (1875-89).

Notes


References
ISBN links support NWE through referral fees

  • Abbott, David, ed. The Biographical Dictionary of Scientists. New York: Peter Bedrick Books, 1984. ISBN 0911745815
  • Gillispie, C.C., ed. 1973. Dictionary of Scientific Biography. New York: Charles Scribner's Sons. ISBN 0684313200
  • Porter, R., ed. 1994. The Biographical Dictionary of Scientists. New York: Oxford University Press. ISBN 0195210832

External links

Biographical-related links

James Clerk Maxwell Foundation

Maxwell's 175th Anniversary

Song lyrics and poetry

Maxwell - Christian/Creationist interpretation

Photos

  • [1] Retrieved March 19, 2008.
  • [2] - Photos and stories from the James Clerk Maxwell Foundation. Retrieved March 19, 2008.

Academic-related links

Mathematics

Treatise On Electricity And Magnetism - 1873 Edition

Versions of Maxwell's 1873 treatise readable online

Supplementary material for understanding Maxwell's 1873 treatise


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