Numericana Hall of Fame
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Here is a chronological list of a few mathematicians and scientists whose towering
achievements have helped shape the Science of their times and ours.  [ Nominate ]

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Giants  of  Science


40-word Biographies   ( © 2003-2011  Gérard P. Michon, Ph.D.)

 Thales of Miletus Thales of Miletus, engineer   (c. 624-546 BC)

First sage of Greece, he founded classical geometry and  natural philosophy.  Alchemists claimed him as one of their own.  The  Theorem of Thales  (one of two)  is about two triangles with parallel sides:  The shadow of the pyramid is to the pyramid what the shadow of a man is to the man  [wow].

Earliest Mathematics   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 The Tetractys

 Pythagoras of Samos Pythagoras of Samos   (c. 569-475 BC)

In Croton, he founded the  mystic  cult of the  Phythagoreans, whose initiated members called themselves  mathematikoi.  They are credited with the first proof of the  Pythagorean Theorem  (itself known to the Chaldeans 1000 years before).

Tetractys   |   Constant of Pythagoras   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Democritus of Abdera Democritus of Abdera   (c. 460-370 BC)

He was the most prominent  atomist  (the last presocratic school, founded by his teacher  Leucippus, student of Zeno and proponent of the law of causality).  He argued that all matter consists of indivisible  atoms  moving in the void.  The alchemist Bolus of Mendes used his name as pseudonym.

Pseudo-Democritus alchemical corpus (still?)   |   MacTutor   |   Wikipedia   |   Stanford   |   Weisstein   |   NNDB


 Aristotle of Stagira Aristotle of Stagira  (384-322 BC)

He was the undisputed authority on  natural philosophy  for two millenia or so.  The lack of discussion of that authority hindered the development of natural Science more than any other single factor, with the possible exception of Church doctrine  (of which some Aristotelian concepts were a part).

Classical elements   |   Plenism   |   Aristotelian mechanics   |   MacTutor   |   Wikipedia   |   Stanford   |   Weisstein   |   NNDB


 Euclid of Alexandria Euclid of Alexandria   (c. 325-265 BC)

Father of axiomatic geometry and author of the most enduring textbook in the history of mathematics:  The Elements.  His presentation of the mathematics of his times would become the centerpiece of mathematical teaching for more than 2000 years.

MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Archimedes of Syracuse Archimedes of Syracuse   (c. 287-212 BC)

A native and resident of Syracuse, Archimedes studied in Alexandria and maintained relations with Alexandrian scholars.  Although he became famous for designing war machines, this early physicist was, above all, an  outstanding  mathematician.

Lever  |  Spiral  |  Parabola  |  Sand Reckoner  |  MacTutor  |  Wikipedia  |  Weisstein  |  Historical Tidbits  |  FB Fans


 Eratosthenes Eratosthenes of Cyrene   (276-194 BC)

Eratosthenes  headed the Library of Alexandria after the death of Callimachus.  In  number theory, he is remembered for the Sieve of Eratosthenes.  He also came up with the first accurate measurement of the circumference of the Earth.

Armillary sphere   |   MacTutor   |   Wikipedia   |   Weisstein   |   NNDB   |   Facebook Fans


 Apollonius of Perga Apollonius of Perga   (262-190 BC)

Apollonius  named and studied the conic sections.  He found that a circle consists of all points whose distances to two  foci  are in a fixed ratio.  He stated that planets revolve around the Sun and that the Earth itself might as well be thought of as  moving  like the planets do.

Circles of Apollonius   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Hipparchus Hipparchus of Nicaea  (c. 190-126 BC)

Hipparch  founded trigonometry  (table of chords, spherical coordinates)  and discovered the precession of the equinoxes (130 BC).  The nova of 134 BC inspired him to compile a catalog of 1080 stars.  His lunar and solar models could predict eclipses.

Magnitude of Stars (+ Sco-X1 ?)   |   Astrolabe   |   MacTutor   |   Wikipedia   |   Weisstein   |   NNDB


 Pliny the Elder Pliny the Elder, encyclopedist  (AD 23-79)

Gaius Plinius Secundus  was a public official who wrote a lot.  The 37 books of  Historia Naturalis (AD 77)  present, in an anthropocentric way, everything the Romans knew about the natural world.  In this,  Pliny  cites nearly 4000 authors.

Historia Naturalis (Bill Thayer)  =  The Natural History (Bostock & Riley)   |   Wikipedia   |   Weisstein   |   NNDB


 Pedanius Dioscorides Dioscorides, pharmacologist  (c. AD 40-90)

Pedanius Dioscorides  was the Greek author of the first major  pharmacopeia  (which never went out of print and remained authoritative for over 1500 years).  The 5 volumes of  De Materia Medica (AD 70)  present about 600 plants.

De Materia Medica   |   Greek Medicine   |   Wikipedia   |   Weisstein


 Ptolemy Ptolemy of Alexandria  (c. AD 87-165)

Claudius Ptolemaeus  was a Roman  citizen  who wrote in Greek.  His first name is unknown  (it's been guessed to be  Tiberius).  The geocentric system presented in his  Almagest (c. AD 150)  dominated astronomy for many centuries.

Almagest   |   MacTutor   |   Wikipedia   |   Weisstein   |   NNDB


 Maria Prophetissa Mary the Jewess,  alchemist  (3rd century AD)

Earliest female experimentalist on record  (signing  Miriam the prophetess, sister of Moses)  she invented the  tribikos  still  and the  balneum Mariae  (named after her).  F. Hoefer also credits her for  muriatic acid  (HCl).  In Alexandria, she reluctantly initiated  Zosimos of Panopolis  (a gentile).

Wikipedia  |  Maria Prophetissa  |  Opus Mulierum  |  Axiom of Maria  |  Chrysopoeia (1964) by Leonora Carrington


 Hypatia of Alexandria Hypatia,  neoplatonist martyr  (c. AD 360-415)

Daughter of the mathematician  Theon (c. 335-405)  last librarian  of Alexandria, who raised her like a boy.  Her scientific teaching was perceived as  pagan.  Hypatia was ambushed and skinned alive by a mob of Christian fanatics.  Arguably, her murder marks the beginning of the  Dark Ages.

Wikipedia   |   MacTutor   |   Freebase   |   NNDB


 Geber Geber,  experimental chemist  (c. AD 721-815)

Abu Musa Jabir ibn Hayyan al Azdi  was born in Tus (Persia) but the Arabs claim him as one of their own.  Geber (or Jabir) made remarkable scientific advances in practical chemistry but also produced eponymous  gibberish  on occult alchemy.

khemeia   |   retort   |   Wikipedia   |   Jabir   |   Chemical Heritage Foundation   |   al Shindagah


 Al Khwarizmi al-Khwarizmi,  Algorismus  (c. AD 783, fl.847)

Al-jabr  (transposition from one side of an equation to the other)  is the technique which gave  algebra  its name.  The term is from the title of the masterpiece published around 810 by  Abu Abdallah Muhammed bin Musa al Khwarizmi.

Decimal numeration   |   Quadratic formula   |   Wikipedia   |   MacTutor   |   Weisstein


 Leonardo Fibonacci Leonardo Pisano Bigollo Fibonacci  (1170-1250)

As a teenager in Algeria, Fibonacci learned the Hindu-Arabic decimal system that he would later advocate in Europe.  In  Liber Abaci  (1202)  he discussed many computational puzzles, including  one  about the Fibonacci sequence...

The Fibonacci Series   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 William of Ockham William of Ockham,  friar   (c.1288-1348)

Arguably, the foremost Medieval logician.  His enduring contribution to  natural philosophy  is the "principle of parsimony" known as  Occam's Razor  (the simplest explanation compatible with observations is preferred).

MacTutor   |   Wikipedia   |   Weisstein


 Nicole Oresme bore these arms as
 Bishop of Lisieux, from 1377 to his death.

 Nicole Oresme Nicole Oresme,  bishop   (1323-1382)

Nicolas Oresme  is credited with the introduction of fractional exponents and the graphing of functions.  He also established the divergence of the harmonic series.  Oresme anticipated analytic geometry, the law of free fall and chemical structures...

MacTutor   |   Wikipedia   |   Weisstein   |   Université de Caen


 Nicolaus Copernicus 
 (Housemark)

 Nicolaus Copernicus Nicolaus Copernicus   (1473-1543)

Mikolaj Kopernik  attended Krakow, Bologna, Padua and Ferrara.  Thanks to his uncle, he became a canon at Frauenberg (1497) where he would have an observatory.  Around 1514, he gave an heliocentric explanation to planetary retrograde motion.

De revolutionibus (1543)  |  Copernican revolution  |  MacTutor  |  Wikipedia  |  Weisstein  |  Copernicium (2010)


 Coat-of-arms of Paracelsus 
 (1493-1541)

 Paracelsus (1493-1541) 
 Portrait by Quentin Matsys (1466-1529)  Paracelsus, physician   (1493-1541)

Philippus Aureolus Theophrastus Bombastus von Hohenheim  chose the pseudonym  Paracelsus  in honor of the encyclopedist Celsus.  He is the first systematic botanist.  He named  zinc  (1526)  and revolutonized medicine (without freeing it from superstition) by using mineral chemicals.

The dose makes the poison  |  Alphabet of the Magi  |  Wikipedia  |  Weisstein


 Coat-of-arms of Girolamo Cardana 
 (1501-1576)

 Girolamo Cardano  Girolamo Cardano  (1501-1576)

Girolamo Cardano  (Cardan to the French)

Ars Magna  |  MacTutor  |  Wikipedia  |  Weisstein   |   NNDB


 Francois Viette, Francois Viete,
 Franciscus Vieta (1540-1603)

 Franciscus Vieta François Viète  (1540-1603)

His name is also spelled  Viette  (latin:  Franciscus Vieta).  Viète  pioneered modern algebraic notations, where known constants and unknown quantities are represented by letters.  The trigonometric  law of tangents  (c. 1580)  is due to him.

Catholic Encyclopedia   |   MacTutor   |   Wikipedia   |   Weisstein


 Tycho Brahe

 Tycho Brahe Tycho Brahe, astronomer   (1546-1601)

Tyge Ottesen Brahe   was from the high Danish nobility.  His Uraniborg observatory, on Hven island, cost 1% of the state budget but allowed precise (naked-eye) observations of planetary positions which made possible the work of Kepler.

MacTutor  |  Wikipedia  |  Weisstein  |  Galileo Project


 Galileo 
 Galilei

 Galileo Galilei, 1636
 portrait painted by 
 Justus Sustermans (1597-1681)Galileo Galilei   (1564-1642)

Using his own pulse as a timer, Galileo discovered the pendulum isochronism in 1581.  He found that all bodies fall with the same acceleration and declared mechanical laws valid for all observers in uniform motion.  He made the first telescopic observations.

The Gaoileo Project (Rice University)   |   MacTutor   |   Wikipedia   |   Weisstein


 Galileo 
 Galilei

 Johannes Kepler, 1610 Johannes Kepler   (1571-1630)

Kepler's  precise calculations helped establish  heliocentric  astronomy.  In 1609 and 1619, he published his famous  3  laws of planetary motion.  He studied optics, polyhedra, logarithms, etc.  Arguably, he paved the road to  Calculus.

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 Rene
 Descartes

 Rene Descartes, 1649
 portrait painted by Dutch master
 Frans Hals (c. 1580-1666) René Descartes   (1596-1650)

Descartes attended the famous Jesuit college of  La Flèche from 1607 to 1615.  He met his scientific mentor Isaac Beeckman (1588-1637) in 1618.  He introduced  cartesian geometry  in one of three appendices to  Discours sur la méthode  (1637).

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 Pierre de Fermat

 Pierre de Fermat Pierre de Fermat   (1601-1665)

Fermat attended Toulouse and Bordeaux,  got a law degree from Orléans and purchased an office at the parlement of Toulouse in 1631.  He relentlessly pursued investigations in mathematics and physics in his spare time  (his judicial work suffered).

Fermat's Little Theorem  |  Fermat's Last Theorem  |  MacTutor  |  Wikipedia  |  Weisstein  |  Facebook Fans


 Blaise Pascal

 Blaise Pascal Blaise Pascal,  philosopher  (1623-1662)

At age 19, he built a celebrated mechanical calculator.  In 1647, Pascal thought of using a Torricelli barometer as an  altimeter,  which established experimentally (1648) the origin of atmospheric pressure.  The SI unit of  pressure  (Pa)  is named after him.

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 Isaac 
 Newton

 Sir Isaac Newton, 1689
 portrait painted by
 Godfrey Kneller (1646-1723) Sir Isaac Newton   (1643-1727)

Lucasian professor of mathematics at Cambridge in 1669.  FRS in 1672.  Publishes  Principia  in 1687.  Retires from research in 1693.  Warden (1696) then Master (1699) of the Royal Mint.  President of the Royal Society from 1703.  Knighted in 1705.
 Signature of 
 Isaac Newton

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 Gottfried 
 Leibniz

 Gottfried von Leibniz Gottfried Wilhelm Leibniz   (1646-1716)

A major philosopher and a polymath,  Leibniz  invented differential calculus independently of Newton.  He introduced a consistent notation for integrals and infinitesimals (1675).  Unlike d'Alembert, Leibniz never thought of derivatives as limits.
 Signature of 
 G. W. Leigniz

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 Benjamin 
 Franklin

 Benjamin Franklin Benjamin Franklin   (1706-1790)

 Signature of 
 Benjamin Franklin At the same time as Watson  (1746)  Franklin formulated the law of conservation of charge by positing opposite signs for  resinous (-)  and  vitreous (+)  electricity.

One of Franklin's many famous quotes   |   Electric Kite (1752)   |   MacTutor   |   Wikipedia   |   Weisstein


 Leonhard 
 Euler

 Leonhard Euler 
 portrait painted by 
 Johann Georg Brucker Leonhard Euler   (1707-1783)

The most prolific mathematician of all times, Euler became totally blind in 1771 but produced almost half of his phenomenal output in St. Petersburg after 1766, with the help of several assistants,  including the young Nicolaus Fuss (1755-1826) from 1773 on.

Solution of the Basel Problem  (1735)   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Jean le Rond d'Alembert 
 1717-1783

 Jean d'Alembert 
 portrait painted by 
 Maurice Quentin de La Tour Jean-le-Rond d'Alembert   (1717-1783)

Born illegitimately to  Louis Camus Destouches-Canon   and  Claudine de Tencin,  he was editor of the  Encyclopedia.  He founded analytical mechanics on a principle of virtual work and solved the wave equation.  The  d'Alembertian  is a 4D operator.

Remarkable Mathematicians (pdf)   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Joseph Louis Lagrange 
 1736-1813

 Joseph Louis Lagrange Joseph Louis Lagrange   (1736-1813)

Lagrange pioneered the calculus of variations (before Euler gave it that name, in 1766)  and applied it to analytical mechanics.  He also invented Lagrange multipliers.  In 1794,  Polytechnique was founded and Lagrange became its first  professor of analysis.

Remarkable Mathematicians (pdf)   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Antoine-Laurent de Lavoisier 
 1743-1794

 Antoine Lavoisier Antoine-Laurent de Lavoisier (1743-1794)

Antoine Lavoisier  founded quantitative chemistry by establishing that mass is conserved in any chemical transformation.  He was infamously executed during the French Revolution because of his rôle as a tax collector.

Wikipedia   |   Weisstein   |   Video Bio


 Pierre-Simon Laplace 
 1749-1827

 Pierre Simon Laplace Pierre Simon Laplace   (1749-1827)

Introduced to mathematics in Caen by  Christophe Gadbled  and  Pierre Le Canu, he was mentored by d'Alembert in Paris.  He went on to become one of the most innovative and influential scientists ever.  (Laplacian, Laplace transform, etc.)

Taupe Laplace (Caen)   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Adrien-Marie Legendre

 Adrien-Marie Legendre, 1752-1833 
 by Julien-Leopold Boilly (1820) Adrien-Marie Legendre   (1752-1833)

Legendre was one of the greatest contributors to the mathematics of his times.  Many concepts are named after him.  At left is what seems to be his only extant portrait  (it was found among 73 caricatures of members of the French academy of Sciences).
 Signature of 
 Adrien-Marie Legendre

Legendre symbols  &  polynomials  |  MacTutor  |  Wikipedia  |  Weisstein  |  1911


 Joseph Fourier, 1768-1830

 Jean-Baptiste Fourier Jean-Baptiste Joseph Fourier  (1768-1830)

In January 1795,  Joseph Fourier  was the star trainee in the new  Ecole normale de l'an III  (the forerunner of ENS) as he was simultaneously  teaching  at  Polytechnique.  He is the founder of  Harmonic Analysis  (cf. Fourier transform).

PhD / ENS   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Andre-Marie Ampere Andre-Marie Ampere   (1775-1836)

Appointed professor of mathematics at  Polytechnique in 1809.  In september 1820, he discovered that like currents attract each other whereas opposite currents repel.  The effect is now used to define the SI unit of current, which is named after him.

 Signature of 
 Andre Ampere Ampere's law (1825 & 1861)  |  MacTutor  |  Wikipedia  |  Weisstein


 Carl F. 
 Gauss

 Carl Friedrich Gauss, 1840 
 portrait by the Danish painter
 Christian Albrecht Jensen (1792-1870) 
 for the Pulkovo observatoryCarl Friedrich Gauss   (1777-1855)

At the age of 7, the  Prince of Mathematics  found instantly the sum (5050) of all integers from 1 to 100  (as the sum of 50 pairs, each adding up to 101).  At age 19, his breakthrough about constructible polygons helped him choose a mathematical career.
 Signature of 
 C. F. Gauss

Quadratic reciprocity  |  MacTutor  |  Wikipedia  |  Weisstein   |   Facebook Fans


 Simeon Denis Poisson Siméon Poisson   (1781-1840; X1798)

Among his many mathematical contributions is a very abstract construct in  analytical mechanics  (Poisson Brackets, 1809)  which helped Dirac formulate a precise correspondence between classical and quantum mechanics  (Sunday, Sept. 20, 1925).  Ecole Polytechnique (X)

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 Augustin Fresnel Augustin Fresnel   (1788-1827; X1804)

Educated in Caen and at  Polytechnique  Augustin Fresnel  established  (with Arago)  that light is a transverse wave whose two orthogonal polarizations do  not  interfere with each other.  He promoted the use of Fresnel lenses in lighthouses.  Ecole Polytechnique (X)

MacTutor  |  Wikipedia   |   Weisstein   |   NNDB


 Augustin 
 Cauchy

 Louis Augustin Cauchy Augustin Cauchy   (1789-1857; X1805)

Cauchy wrote 789 papers in all areas of the mathematics and theoretical physics of his time.  In 1821, his  Cours d'analyse  at Polytechnique put analysis on a rigorous footing.  He originated the calculus of residues (1826) and complex analysis (1829).  Ecole Polytechnique (X)

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 Michael Faraday Michael Faraday, experimentalist   (1791-1867)

In 1831,  Faraday  discovered the  Law of Electromagnetic Induction, which made the electric era possible.  He is widely regarded as one of the greatest experimentalists who ever lived.  Yet, he had little or no grasp of higher mathematics.
 Signature of 
 Michael Faraday

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 Carl Jacobi Carl Gustav Jacob Jacobi   (1804-1851)

An inspiring teacher, he was an outstanding and prolific creator of mathematics who has been likened to Euler.  He introduced    and  Jacobians  in 1841.  Jacobi  admired  Poisson brackets  and proved that they satisfy what's now called Jacobi's identity.

Ph.D. 1825   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Johann Dirichlet Peter Gustav Lejeune Dirichlet   (1805-1859)

His full name was  Johann Peter Gustav Lejeune-Dirichlet.  He signed  Gustav Lejeune Dirichlet, (no hyphen)  published as  P.G.L. Dirichlet  and was quoted as  Lejeune-Dirichlet.  He contributed to number theory, mechanics and analysis.

h.c. 1827  |  Theorems  |  D-branes  |  DE  |  Life and Work (pdf)  |  MacTutor  |  Wikipedia  |  Weisstein  |  FB


 William Rowan Hamilton Sir William Rowan Hamilton   (1805-1865)

Hamilton taught himself mathematics at the age of 17.  In 1833, he devised a version of  rational mechanics (based on co-called  conjugate momenta)  which helps clarify modern formulations of quantum mechanics.  He invented quaternions in 1843.

DIT 2005   |   MacTutor   |  sp; |   Weisstein   |   Facebook Fans


 Charles 
 Darwin

 Charles Darwin at age 31 
 Portrait by George Richmond (1840) Charles Robert Darwin   (1809-1882)

Against strong religious animosity  (which lasts to this day in the US)  Darwin established that the mechanism of  natural selection  was powerful enough to explain the evolution of the humblest ancient lifeforms into the most advanced modern ones, featuring extremely sophisticated organs.

The Origin of Species by Means of Natural Selection (1859)   |   Wikipedia   |   NNDB   |   Facebook


 Joseph Liouville Joseph Liouville   (1809-1882; X1825)

Many of Liouville's 400+ papers include key contributions, like his conservation of Hamiltonian phase-measure.  In 1836, he founded the  Journal de mathématiques pures et appliquées  and promoted the work of others, including  Evariste Galois.  Ecole Polytechnique (X)

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 Karl Weierstrass Karl Weierstrass, mathematician  (1815-1897)

The  father of analysis  spent 15 years teaching secondary school before one paper earned him an honorary doctorate and a professorship.  He gave the rigorous metric definition of limits and invented the concept of analytic continuation.

Hon. Dr. 1854  |  MacTutor  |  Wikipedia  |  Weisstein  |  Facebook Fans


 Arthur Cayley 
(by Barraud and Jerrard) Arthur Cayley, mathematician   (1821-1895)

He wrote 996 papers on many mathematical subjects (200 of these while praticing law, for 14 years).  In 1858, Cayley established the  Cayley-Hamilton theorem  (a matrix is a zero of its characteristic polynomial)  without proving it formally.

Dr Sc. 1875  |  MacTutor  |  Wikipedia  |  Weisstein  |  Group Th.  |  Cayley-Dickson  |  Length of a flat ellipse


 Leopold Kronecker Leopold Kronecker, algebraist   (1823-1891)

Famous for his credo "God made the natural numbers; all else is the work of man", Kroneccker championed  constructivism.  He strongly opposed his former student Georg Cantor and the emerging nonconstructive Set Theory.

Ph.D. 1845  |  Legendre symbols   |   MacTutor   |   Wikipedia   |   Weisstein


 Baron Kelvin 
 of Largs

 Lord Kelvin Lord Kelvin   (1824-1907)

Born  William ThomsonLord Kelvin  was knighted in 1866 and raised to the peerage in 1892  (Baron Kelvin of Largs).  The SI unit of temperature is named after this mathematician noted for his engineering work (e.g., transatlantic telegraph).
 Signature of 
 Lord Kelvin, Professor of Natural Philosophy

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 Bernhard Riemann, 1863 Bernhard Riemann, mathematician   (1826-1866)

In 1851, his thesis introduced Riemann surfaces.  Riemann's habilitation lecture on the foundations of geometry (1854) stunned even Gauss.  Probing the distribution of primes with his  zeta function, he stated the Riemann Hypothesis in 1859.

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 James 
 Clerk Maxwell

 James Clerk Maxwell James Clerk Maxwell   (1831-1879)

In 1864, he devised Maxwell's equations which unify electricity and magnetism, by describing  electromagnetic  fields traveling at the speed of light.  In 1866, Maxwell proposed (independently of Boltzmann) the  Maxwell-Boltzmann  kinetic theory of gases.
 Signature of 
 James Clerk Maxwell

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 Richard Dedekind 
 Courtesy of the Library of the Swiss Federal Institute of Technology, Zurich Richard Dedekind, mathematician   (1831-1916)

Julius Wilhelm Richard Dedekind  was the last doctoral student of Gauss (1852) but he also learned much from Dirichlet after his doctorate.  On 24 November 1858, he defined every  real number  as a Dedekind cut  of rationals.  In 1871, he introduced algebraic ideals.

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 Ludwig Boltzmann Ludwig Boltzmann, physicist   (1844-1906)

Boltzmann  was a proponent of  atomic theory  and the father of  statistical mechanicsBoltzmann's constant is the coefficient of proportionality between  entropy  (in J/K)  and the natural logarithm of the number of allowed physical states.
 Signature of 
 Ludwig Boltzmann

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 Georg Cantor Georg Cantor, mathematician   (1845-1918)

Cantor's diagonal argument shows that the points of a line are not countable.  More generally, Cantor's Theorem  states that no function from a set to its  powerset  can possibly be  surjective,  which establishes an infinite sequence of increasing  infinities.

Dangerous Knowledge 1 | 2 | 3   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Ricci-Curbastro

 Gregorio Ricci-Curbastro Gregorio Ricci-Curbastro   (1853-1925)

In 1884, he started the investigations of  quadratic differential forms  which led him to invent  tensor calculus  (1884-1894).  The text he published about that with  Tullio Levi-Civita in 1900 would enable Einstein to formulate General Relativity in 1915.
 Signature of 
 Gregorio Ricci-Curbastro

Ph.D. 1873   |   MacTutor   |   Wikipedia   |   Weisstein


 Hendrik Antoon Lorentz Hendrik A. Lorentz, physicist   (1853-1928)

Among the  many  contributions of  H.A. Lorentz  is the coordinate transformation which is the cornerstone of  Special Relativity.  In 1892, Lorentz proposed a theory of the  electron  (discovered by Perrin in 1895 and J.J. Thomson in 1898).

Nobel 1902   |   MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Jules Henri Poincare J. Henri Poincaré   (1854-1912; X1873)

Poincaré was the last  universal  genius and quintessential absent-minded professor  (cf.  Savant Cosinus  comic strip).  Poincaré conceived Special Relativity before Einstein did.  His mathematical legacy includes chaos theory and  topology.  Ecole Polytechnique (X)  Signature of 
 Henri Poincare

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 Nikola Tesla Nikola Tesla  (1856-1943)

At least 272 patents were awarded to Tesla in 25 countries.  His work is the basis of modern  alternating current  (AC) electric power distribution.  In 1960, the SI unit of  magnetic induction  (magnetic flux density)  was named after him.
 Signature of 
 Nikola Tesla

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 Paternal coat-of-arms of Max Planck

 Max Planck 
 (1858-1947) Max Planck, physicist   (1858-1947)

Planck combined the formulas of Wien (UV) and Rayleigh (IR) into a unified expression for the blackbody spectrum.  On Dec. 14, 1900, he justified it by proposing that exchanges of energy only occur in discrete lumps, dubbed  quanta.
 Signature of Max Planck 
 at 10 years of age

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 David Hilbert 
 (1862-1943) David Hilbert, mathematician   (1862-1943)

One of the most powerful mathematicians ever, David Hilbert gave a famous list of 23 unsolved problems in 1900.  Quantum Theory  is formally based on the complex normed vector spaces which are named after him.

Hilbert's List   |   Wikipedia   |   MacTutor   |   Facebook Fans


 Marie 
 Curie

 Marie Curie 
 (1867-1934) Marie Curie, physical chemist  (1867-1934)

Marie Sklodowska-Curie  was the first woman to earn a Nobel prize and the first person to earn two.  In 1898, she isolated two new elements (polonium and radium) by tracking their  ionizing radiation,  using the electrometer of Jacques and Pierre Curie.

Nobel 1903 (Physics)   |   Nobel 1911 (Chemistry)   |   Wikipedia   |   AIP   |   Facebook Fans


 Elie Cartan 
 (1869-1951) Elie Cartan, mathematician   (1869-1951)

In 1913, Cartan established, from a purely geometrical standpoint, the relations that lead to the quantization of spin.  He developed exterior calculus and published his full  Theory of Spinors  as a textbook in 1935.

MacTutor   |   Wikipedia   |   Weisstein   |   Facebook Fans


 Lord Rutherford of Nelson

 Ernest Rutherford Ernest Rutherford   (1871-1937)

British physicist born in Nelson, New Zealand.  His investigations of alpha and beta decay  (which he so named)  earned him a Nobel prize before he moved to Manchester, where he supervised the Geiger-Marsden experiment (1909) and inferred the planetary model of the atom (1911).
 Signature of 
 Ernest Rutherford

Nobel 1908   |   Nuclear Physics  |  Wikipedia  |  Weisstein


 Lise Meitner 
 (1878-1968) Lise Meitner, physical chemist   (1878-1968)

A student of Ludwig Boltzmann, she became a collaborator of  Otto Hahn  who was awarded a Nobel prize (1944) for their joint work.  With  Otto Frisch  (her nephew)  Lise Meitner gave  nuclear fission  its name  (Kernspaltung).  She correctly explained the related  mass defect  (1938).
 Signature of 
 Lise Meitner

Otto Hahn's Nobel Lecture   |   Wikipedia   |   Weisstein   |   Meitnerium (1997)


 Albert Einstein 
 (1876-1955) Albert Einstein, physicist   (1879-1955)

In 1905, Einstein published on Brownian motion (existence of atoms) the photoelectric effect (discovery of the photon) and his own Special Theory of Relativity, which he would unify with gravity in 1915 by formulating the General Theory of Relativity.
 Signature of 
 Albert Einstein

Nobel 1921   |   MacTutor   |   Wikipedia   |   Bonn   |   Weisstein   |   AIP


 Emmy Noether 
 (1882-1935) Emmy Noether, mathematician   (1882-1935)

Emmy Noether discovered the remarkable equivalence between symmetries in physical laws and conserved physical quantities  (Noether's theorem, 1915).  Her considerable legacy also includes three Isomorphism Theorems named after her (1927).

1918 Paper   |   MacTutor   |   Wikipedia   |   EmmyNoether.com   |   Facebook Fans


 Niels 
 Bohr

 Niels Bohr 
 (1885-1962) Niels Bohr, physicist   (1885-1962)

In 1913, Bohr started the quantum revolution with a model where the  orbital angular momentum  of an electron only has discrete values.  He spearheaded the  Copenhagen Interpretation  which holds that quantum phenomena are inherently probabilistic.
 Signature of Niels Bohr

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 Hermann Weyl 
 (1885-1955) "Peter" Hermann Weyl   (1885-1955)

In 1908, Weyl obtained his doctorate in mathematics from Göttingen under Hilbert.  He was enthralled by  symmetry  and other mathematical aspects of physics.  In 1913, Weyl became a colleague of Einstein's at the ETH Zürich.  He befriended Shrödinger in 1921.
 Signature of 
 Hermann Weyl

Ph.D. 1908   |   Symmetry (1952)   |   Wikipedia   |   MacTutor   |   Facebook Fans


 Erwin Schroedinger 
 (1887-1961) Erwin Schrödinger, physicist   (1887-1961)

In 1926, Schrödinger matched observed quantum behavior with the properties of a continuous nonrelativistic wave obeying the Schrödinger Equation.  In 1935, he challenged the  Copenhagen Interpretation,  with the famous tale of Schrödinger's cat.
 Signature of 
 Erwin Schroedinger

Dublin  |  Nobel 1933 (lecture)  |  Wikipedia  |  MacTutor  |  FB


 Srinivasa Ramanujan 
 (1887-1920) Srinivasa Ramanujan   (1887-1920)

Ramanujan lacked a formal mathematical education but, in 1913, a few of his early results managed to startle  G.H. Hardy (1877-1947) who invited him to Cambridge in 1914.  Ramanujan has left an unusual legacy of brilliant unconventional results.

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 Louis 
 de Broglie

 Louis de Broglie
 (1892-1987) Louis de Broglie, physicist   (1892-1987)

In 1923, he proposed that any particle could behave like a wave of wavelength inversely proportional to its momentum  (this helps justify Schrödinger's equation).  He predicted  interferences  for an electron beam hitting a crystal.
 Signature of Louis de Broglie (1970)

Nobel 1929   |   Wikipedia   |   MacTutor


 Paul Adrien Maurice 
 Dirac

 Paul Dirac 
 (1885-1962) Paul Adrien Maurice Dirac   (1902-1984)

In 1925, Paul Dirac came up with the formalism on which quantum mechanics is now based.  In 1928, he discovered a relativistic wave function for the electron, predicting the existence of  antimatter  (observed by Anderson in 1932).
 Signature of P.A.M. Dirac (Bodensee, 1962)

Nobel 1933   |   Wikipedia   |   Facebook Fans


 John von Neumann (1903-1957) 
 at Los Alamos Jancsi "John" von Neumann   (1903-1957)

He is credited with the  stored program architecture  whereby a computer uses its primary memory space to store both the data it operates on and the  codes  for the programs it executes.  Von Neumann  also pioneered  game theory  and  decision analysis.
 Signature of 
 John von Neumann

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 Kurt Goedel 
 (1906-1978) Kurt Gödel, logician   (1906-1978)

 
 Signature of 
 Kurt Goedel

Grave   |   Dangerous Knowledge 6 | 7 | 8   |   IAS   |   Wikipedia   |   MacTutor   |   Facebook Fans


 Andre Weil 
 (1906-1998) André Weil, mathematician   (1906-1998)

Older brother of the philosopher Simone Weil  (unrelated to the politician Simone Veil)  he was the leading founder of Bourbaki.  Weil created  algebraic geometry  and, arguably, charted the course of much  abstract mathematics  in the  20-th century.

D.Sc. 1928   |   Weil conjectures (1949)   |   Wikipedia   |   MacTutor   |   ams


 Alan Turing 
 (1912-1954) Alan Turing, computer scientist  (1912-1954)

Turing Machine  is a finite automaton endowed with an infinite read/write tape on which it can move back and forth, one step at a time.  Turing showed that this type of machine is actually capable of computing anything that any other machine could.

Dangerous Knowledge 8 | 9 | 10   |   Wikipedia   |   MacTutor   |   Facebook Fans


 Paul Erdos 
 (1913-1996) Paul Erdős, mathematician   (1913-1996)

Paul Erdös  wrote over 1500 papers with 511 collaborators.  He contributed many conjectures and proved some great ones.  Faced with antisemitism, he left Hungary in 1934 and spent the rest of his frugal life on the road, touring mathematical centers.

Erdös number   |   Wikipedia   |   MacTutor   |   Facebook Fans


 Richard P. Feynman 
 (1918-1988) Richard P. Feynman, physicist   (1918-1988)

In 1949, he introduced  Feynman diagrams  to describe the relativistic quantum theory of electromagnetic interactions known as  Quantum electrodynamics  (QED).  This has helped visualize all other types of fundamental interactions ever since.

Nobel 1965  |  Wikipedia  |  MacTutor  |  1972 Interviews  |  1979 QED Lectures  |  1988  |  Facebook Fans


 Benoit Mandelbrot 
 (1924-2010) Benoît Mandelbrot, mathematician  (1924-2010)

Nephew of the founding bourbakist Szolem Mandelbrojt (1899-1983).  His family emigrated from Poland to France in 1936 and he was educated at Polytechnique.  He founded fractal geometry  (but didn't discover the  Mandelbrot set).  Ecole Polytechnique (X)
 Signature of Benoit Mandelbrot

Wikipedia  |  MacTutor


 Steven Weinberg 
 (1933-) Steven Weinberg, physicist   (1933-)

In 1967, he formulated the  electroweak  unification of the weak nuclear force and electromagnetism, predicting a massive neutral messenger particle  (the Z boson)  which was first observed in 1979.  Steven Weinberg gave the  Standard Model  its name.

home   |   Nobel 1979   |   Wikipedia   |   Emperor Has No Clothes Award  |  Facebook Fans

 Glider in Conway's 
 Game of Life

 John Horton Conway 
 (1937-) John H. Conway   (1937-)

In 1970, Conway found the simple rules of a cellular automaton  (the  Game of Life)  capable of self-replication and universal computation.  His many other original contributions include the ultimate extension of the ordered number line:  surreal numbers.

bibliography   |   New York Times   |   The 3 Conway sporadic groups   |   Wikipedia   |   MacTutor


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