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[[Image:600px-Albert Einstein Head.jpg|right|thumb|220px]]

[[Image:600px-Albert Einstein Head.jpg|right|thumb|220px]]

'''Albert Einstein''' (1879-1955) was a theoretical physicist who contributed to the theory of a [[Special Relativity]] and the theory of [[General Relativity]].  He also contributed to the study of Photoelectric Effect, Brownian Motion and Bose-Einstein Statistics.  He was critical of quantum mechanics and has proposed the EPR-Paradox in attempt to point out spooky aspects of the theory.  The last fifteen years of his life were spent in spent unsuccessfully searching for a [[Unified Field Theory]].  Born in Germany in a Jewish familiy, he won the [[Nobel Prize]] for his work on the Photoelectric Effect in 1921.<ref>http://nobelprize.org/nobel_prizes/physics/laureates/1921/</ref>  He immigrated to the United States in the late 1930s where, upon the urging of a colleague in physics, recommended that President Franklin D. Roosevelt develop an [[atomic bomb]] project.<ref>[http://www.dannen.com/ae-fdr.html]</ref>He later regretted this and became a passionate pacifist.  In 1952, he was offered the Presidency of Israel, but he turned it down.  

'''Albert Einstein''' (1879-1955) was a theoretical physicist who contributed to the theory of a [[Special Relativity]] and the theory of [[General Relativity]].  He also contributed to the study of Photoelectric Effect, Brownian Motion and Bose-Einstein Statistics.  He was critical of quantum mechanics and has proposed the EPR-Paradox in attempt to point out spooky aspects of the theory.  The last fifteen years of his life were spent in unsuccessfully searching for a [[Unified Field Theory]].  Born in Germany in a Jewish familiy, he won the [[Nobel Prize]] for his work on the Photoelectric Effect in 1921.<ref>http://nobelprize.org/nobel_prizes/physics/laureates/1921/</ref>  He immigrated to the United States in the late 1930s where, upon the urging of a colleague in physics, recommended that President Franklin D. Roosevelt develop an [[atomic bomb]] project.<ref>[http://www.dannen.com/ae-fdr.html]</ref>He later regretted this and became a passionate pacifist.  In 1952, he was offered the Presidency of Israel, but he turned it down.  

Einstein's best-known scientific work is his 1905 papers on [[Special Relativity]]. The theory of relativity had already been published by [[Hendrik Lorentz]] and [[Henri Poincaré]]. Einstein's contribution was to give a description of the Lorentz-Poincare theory without reference to the luminiferous aether, and to clarify some of the physical consequences of the theory.

Einstein's best-known scientific work is his 1905 papers on [[Special Relativity]]. The theory of relativity had already been published by [[Hendrik Lorentz]] and [[Henri Poincaré]]. Einstein's contribution was to give a description of the Lorentz-Poincare theory without reference to the luminiferous aether, and to clarify some of the physical consequences of the theory.

==Cosmological Constant==

==Cosmological Constant==

Einstein revised his work on [[General Relativity]] to include a 'fudge-factor' which he termed the [[Cosmological Constant]]. He was trying to account for the apparent steady-state nature of the universe.

Einstein revised his work on [[General Relativity]] to include a 'fudge-factor' which he termed the [[Cosmological Constant]]. He was trying to account for the apparent steady-state nature of the universe.