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• 
  

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  Austria
  Austria (ⁱ/ˈɒstriə/ or /ˈɔːstriə/; German: Österreich [ˈøːstɐˌʁaɪç] ( listen)), officially the Republic of Austria (German:  Republik Österreich (help·info)), is a landlocked country of roughly 8.47 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Hungary and Slovakia to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The territory of Austria covers 83,855 square kilometres (32,377 sq mi) and has a temperate and alpine climate. Austria's terrain is highly mountainous due to the presence of the Alps; only 32% of the country is below 500 metres (1,640 ft), and its highest point is 3,798 metres (12,461 ft). The majority of the population speak local Austro-Bavarian dialects of German as their native language, and German in its standard form is the country's official language. Other local official languages are Burgenland Croatian, Hungarian and Slovene.
  The origins of modern-day Austria date back to the time of the Habsburg dynasty when the vast majority of the country was a part of the Holy Roman Empire of the German Nation. During the 17th and 18th centuries, Austria became one of the great powers of Europe and, in response to the coronation of Napoleon I as the Emperor of the French, the Austrian Empire was officially proclaimed in 1804. In 1867, the Austrian Empire was reformed into Austria-Hungary.
  
  wn.com/Austria
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  Austrian Empire
  The Austrian Empire (German: Kaiserthum Oesterreich, modern spelling Kaisertum Österreich) was a modern era successor empire, which was centered on what is today's Austria and which officially lasted from 1804 to 1867. It was followed by the Empire of Austria-Hungary, whose proclamation was a diplomatic move that elevated Hungary's status within the Austrian Empire as a result of the Austro-Hungarian Compromise of 1867. The Austro-Hungarian Empire (1867 to 1918) was itself dissolved by the victors at the end of World War I and broken into separate new states.
  The term "Austrian Empire" is also used for the Habsburg possessions before 1804, which had no official collective name, although Austria is more frequent; the term of Austria-Hungary has also been used.^{[citation needed]}
  The Austrian Empire was founded by the Habsburg monarch Holy Roman Emperor Francis II (who became Emperor Francis I of Austria), as a state comprising his personal lands within and outside of the Holy Roman Empire of the German Nation.
  
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  Charles University
  Charles University in Prague (also simply Charles University; Czech: Univerzita Karlova v Praze; Latin: Universitas Carolina Pragensis; German: Karls-Universität zu Prag) is the oldest and largest university in the Czech Republic. Founded in 1348, it was the first university in Central Europe. It is one of the oldest universities in Europe in continuous operation, and a top university in Central and Eastern Europe that also ranks among the 1.5 percent world’s best universities.
  Its seal shows its protector Emperor Charles IV, with his coats of arms as King of the Romans and King of Bohemia, kneeling in front of St. Wenceslas, the patron saint of Bohemia. It is surrounded by the inscription, Sigillum Universitatis Scolarium Studii Pragensis (English: Seal of the Prague academia, Czech: Pečeť studentské obce pražského učení).
  The establishment of a medieval university in Prague was inspired by Holy Roman Emperor Charles of Luxembourg. He asked his friend and ally, Pope Clement VI, to do so. On 26 January 1347 the pope issued the bull establishing a university in Prague, modeled on the University of Paris, with the full (4) number of faculties, that is including theological. On 7 April 1348 Charles, the king of Bohemia, gave to the established university privileges and immunities from the secular power in a Golden Bull and on 14 January 1349 he repeated that as the King of the Romans. Most Czech sources since the 19th century—encyclopedias, general histories, materials of the University itself—prefer to give 1348 as the year of the founding of the university, rather than 1347 or 1349. This was caused by an anticlerical shift in the 19th century, shared by both Czechs and Germans.
  
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  Czech Republic
  The Czech Republic (ⁱ/ˈtʃɛk/ CHEK;Czech: Česká republika, pronounced [ˈtʃɛskaː ˈrɛpuˌblɪka] ( listen), short form Česko Czech pronunciation: [ˈtʃɛskɔ]) is a landlocked country in Central Europe. The country is bordered by Poland to the north, Germany to the west, Austria to the south and Slovakia to the east. Its capital and largest city, with 1.3 million inhabitants, is Prague.
  It is a pluralist multi-party parliamentary representative democracy, a member of the European Union, NATO, the OECD, the OSCE, the Council of Europe and the Visegrád Group.
  The Czech state, formerly known as Bohemia, was formed in the late 9th century as a small duchy around Prague, at that time under dominance of the powerful Great Moravian Empire (which reached its greatest territorial extent during the reign of Svatopluk I from the House of Mojmír). After the fall of the Empire in 907, the centre of power was transferred from Moravia to Bohemia, under the Přemyslids. During the rule of Přemyslid dukes/kings and their successors, the Luxembourgs, the country reached its greatest territorial extent (13th–14th century). Life in the country was significantly affected by the Hussite wars, during which it faced economic embargo and crusades from all over Europe. Following the Battle of Mohács in 1526, the Crown of Bohemia was gradually integrated into the Habsburg monarchy as one of its three principal parts alongside the Archduchy of Austria and the Kingdom of Hungary. The Bohemian Revolt (1618–20) led to the further centralization of the monarchy including forced recatholization and Germanization. During radical reforms in the 18th century the Bohemian Crown was even de facto abolished (1749). In the 19th century the Czech lands became the industrial powerhouse of the monarchy and the core of the Republic of Czechoslovakia which was formed in 1918, following the collapse of the Austro-Hungarian empire after World War I.
  
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  German Empire
  The German Empire (German: Deutsches Kaiserreich) is the common name given to the state officially named the Deutsches Reich (literally: "German Realm"), designating Germany from the unification of Germany and proclamation of Wilhelm I as German Emperor on 18 January 1871, to 1918, when it became a federal republic after defeat in World War I and the abdication of the Emperor, Wilhelm II.
  The German Empire consisted of 27 constituent territories (most of them ruled by royal families). While the Kingdom of Prussia contained most of the population and most of the territory of the Reich; the Prussian leadership became supplanted by German leaders and Prussia itself played a lesser role. As Dwyer (2005) points out, Prussia's "political and cultural influence had diminished considerably" by the 1890s. Its three largest neighbors were rivals Imperial Russia to the east and France to the west and ally Austria-Hungary to the south.
  After 1850, Germany industrialized rapidly, with a foundation in coal, iron (and later steel), chemicals and railways. From a population of 41 million people in 1871, it grew to 68 million in 1913. From a heavily rural nation in 1815, it was now predominantly urban. During its 47 years of existence, the German Empire operated as an industrial, technological and scientific giant, receiving more Nobel Prizes in science than Britain, France, Russia and the United States combined.
  
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  Germany
  Germany (ⁱ/ˈdʒɜrməni/), officially the Federal Republic of Germany (German: Bundesrepublik Deutschland, pronounced [ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant] ( listen)), is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km² and has a largely temperate seasonal climate. With 81.8 million inhabitants, it is the most populous member state and the largest economy in the European Union. It is one of the major political powers of the European continent and a technological leader in many fields.
  A region named Germania, inhabited by several Germanic peoples, was documented before AD 100. During the Migration Period, the Germanic tribes expanded southward, and established successor kingdoms throughout much of Europe. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation while southern and western parts remained dominated by Roman Catholic denominations, with the two factions clashing in the Thirty Years' War, marking the beginning of the Catholic–Protestant divide that has characterized German society ever since. Occupied during the Napoleonic Wars, the rise of Pan-Germanism inside the German Confederation resulted in the unification of most of the German states into the German Empire in 1871 which was Prussian dominated. After the German Revolution of 1918–1919 and the subsequent military surrender in World War I, the Empire was replaced by the Weimar Republic in 1918, and partitioned in the Treaty of Versailles. Amidst the Great Depression, the Third Reich was proclaimed in 1933. The latter period was marked by Fascism and World War II. After 1945, Germany was divided by allied occupation, and evolved into two states, East Germany and West Germany. In 1990 Germany was reunified.
  
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  Prague
  Prague ( /ˈprɑːɡ/; Czech: Praha pronounced [ˈpraɦa] ( listen)) is the capital and largest city of the Czech Republic and fourteenth largest city in European Union. Situated in the north-west of the country on the Vltava river, the city is home to about 1.3 million people, while its metropolitan area is estimated to have a population of nearly 2.0 million. The city has a temperate oceanic climate with warm summers and chilly winters.
  Prague has been a political, cultural, and economic centre of central Europe with waxing and waning fortunes during its 1,100 year existence. Founded during the Romanesque and flourishing by the Gothic and Renaissance eras, Prague was the seat of two Holy Roman Emperors and thus then also the capital of the Holy Roman Empire. It was an important city to the Habsburg Monarchy and its Austro-Hungarian Empire and after World War I became the capital of Czechoslovakia. The city played major roles in the Protestant Reformation, the Thirty Years' War, and in modern history generally as the principal conurbation in Bohemia and Moravia whose second city is Brno.
  
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  University of Graz
  The University of Graz (German, Karl-Franzens-Universität Graz), a university located in Graz, Austria, is the second-largest and second-oldest university in Austria.
  Karl-Franzens-Universität, also referred to as the University of Graz, is the city's oldest university, founded in 1585 by Archduke Charles II of Austria. For most of its existence it was controlled by the Catholic Church, and was closed in 1782 by Emperor Joseph II in an attempt to gain state control over educational institutions. Joseph II transformed it into a lyceum where civil servants and medical personnel were trained. In 1827 it was re-instituted as a university by Emperor Francis I, thus gaining the name Karl-Franzens-Universität, meaning Charles Francis University. Over 22,000 students are currently enrolled at this university.
  Ludwig Boltzmann was professor at the Karl-Franzens Universität twice (1869–1873 and 1876–1890) developing his statistical theory of heat. Nobel Laureate Otto Loewi taught at the University of Graz from 1909 until 1938. Victor Franz Hess (Nobel prize 1936) graduated in Graz and taught here (1920–1931, 1937–1938). Erwin Schrödinger was briefly chancellor of the University of Graz in 1936.
  
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  Albert Einstein
  Albert Einstein ( /ˈælbərt ˈaɪnstaɪn/; German: [ˈalbɐt ˈaɪnʃtaɪn] ( listen); 14 March 1879 – 18 April 1955) was a German theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics. While best known for his mass–energy equivalence formula E = mc² (which has been dubbed "the world's most famous equation"), he received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect". The latter was pivotal in establishing quantum theory within physics.
  Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led to the development of his special theory of relativity. He realized, however, that the principle of relativity could also be extended to gravitational fields, and with his subsequent theory of gravitation in 1916, he published a paper on the general theory of relativity. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the structure of the universe as a whole.
  
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  Andrija Mohorovičić
  Andrija Mohorovičić (Croatian pronunciation: [ǎndrija moxorǒʋitʃitɕ]) (January 23, 1857 – December 18, 1936) was a Croatian meteorologist and seismologist. He is best known for the eponymous Mohorovičić discontinuity and is considered a founder of modern seismology.
  Mohorovičić was born in Volosko, Opatija, where his father (also named Andrija), was a blacksmith, making anchors. The younger Andrija also loved the sea and married a captain's daughter, Silvija Vernić. They had four sons.
  Mohorovičić obtained his elementary education in his home town, then continued at the gymnasium of neighbouring Rijeka. He received his higher education in mathematics and physics at the Faculty of Philosophy in Prague in 1875, where one of his professors was Ernst Mach. At 15, Mohorovičić knew Italian, English and French. Later he learned German, Latin and Ancient Greek.
  He taught first at high school in Zagreb (1879–1880), then at secondary school in Osijek. From 1882, he taught for nine years at the Royal Nautical School in Bakar, near Rijeka. Work started or completed there was important to his later scientific career. From 1893, when he became a corresponding member of the Faculty of Philosophy, University of Zagreb, to 1917-18 he taught in the fields of geophysics and astronomy. In 1898 he became a full member of what was then the Yugoslav Academy of Sciences and Arts in Zagreb, where he was a private docent. In 1910 he became titular associate university professor.
  
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  Austria
  Austria (ⁱ/ˈɒstriə/ or /ˈɔːstriə/; German: Österreich [ˈøːstɐˌʁaɪç] ( listen)), officially the Republic of Austria (German:  Republik Österreich (help·info)), is a landlocked country of roughly 8.47 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Hungary and Slovakia to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The territory of Austria covers 83,855 square kilometres (32,377 sq mi) and has a temperate and alpine climate. Austria's terrain is highly mountainous due to the presence of the Alps; only 32% of the country is below 500 metres (1,640 ft), and its highest point is 3,798 metres (12,461 ft). The majority of the population speak local Austro-Bavarian dialects of German as their native language, and German in its standard form is the country's official language. Other local official languages are Burgenland Croatian, Hungarian and Slovene.
  The origins of modern-day Austria date back to the time of the Habsburg dynasty when the vast majority of the country was a part of the Holy Roman Empire of the German Nation. During the 17th and 18th centuries, Austria became one of the great powers of Europe and, in response to the coronation of Napoleon I as the Emperor of the French, the Austrian Empire was officially proclaimed in 1804. In 1867, the Austrian Empire was reformed into Austria-Hungary.
  
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  Austrians
  Austrians (German: Österreicher) are a nation and ethnic group, consisting of the population of the Republic of Austria and its historical predecessor states who share a common Austrian culture and Austrian descent.
  The English term Austrians was applied to the population of Habsburg Austria from the 17th or 18th century. During the 19th century, it identified the citizens of the Empire of Austria (1804–1867), and until 1918 to the citizens of Cisleithania, Austria-Hungary's western half.
  In the closest sense, the term Austria originally referred to the historical March of Austria, corresponding roughly to the Vienna Basin in what is today Lower Austria.
  The English word Austrian is a derivative of the proper name Austria, which is a latinization of Österreich, the German name for Austria. This word is derived from Ostarrîchi, which first appears in 996. This, in turn, is probably a translation of the Latin Marcha Orientalis, which means "eastern borderland" (viz. delimiting the eastern border of the Holy Roman Empire). It was a margraviate of the Duchy of Bavaria, ruled by the House of Babenberg from AD 976. During the 12th century, the Marcha Orientalis under the Babenbergs became independent of Bavaria. What is today known as Lower Austria corresponds to the Marcha Orientalis, while Upper Austria corresponds to the eastern half of the core territory of Bavaria (the western half forming part of the German state of Bavaria).
  
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  B. F. Skinner
  Burrhus Frederic "B. F." Skinner (March 20, 1904 – August 18, 1990) was an American behaviorist, author, inventor, social philosopher and poet. He was the Edgar Pierce Professor of Psychology at Harvard University from 1958 until his retirement in 1974.
  Skinner invented the operant conditioning chamber, innovated his own philosophy of science called radical behaviorism, and founded his own school of experimental research psychology—the experimental analysis of behavior. His analysis of human behavior culminated in his work Verbal Behavior, which has recently seen enormous increase^{[citation needed]} in interest experimentally and in applied settings.
  Skinner discovered and advanced the rate of response as a dependent variable in psychological research. He invented the cumulative recorder to measure rate of responding as part of his highly influential work on schedules of reinforcement. In a June 2002 survey, Skinner was listed as the most influential psychologist of the 20th century. He was a prolific author who published 21 books and 180 articles.
  
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  Ernst Mach
  Ernst Mach (German pronunciation: [ˈɛɐnst ˈmax]) (February 18, 1838 – February 19, 1916) was an Austrian physicist and philosopher, noted for his contributions to physics such as the Mach number and the study of shock waves. As a philosopher of science, he was a major influence on logical positivism and through his criticism of Newton, a forerunner of Einstein's relativity.
  Ernst Waldfried Josef Wenzel Mach was born in Chrlice (German: Chirlitz), Moravia (then in the Austrian empire, now part of Brno in the Czech Republic). His father, who had graduated from Charles University in Prague, acted as tutor to the noble Brethon family in Zlín, eastern Moravia. His grandfather, Wenzl Lanhaus, an administrator of the estate Chirlitz, was also master builder of the streets there. His activities in that field later influenced the theoretical work of Ernst Mach. Some sources give Mach's birthplace as Turas/Tuřany (now also part of Brno), the site of the Chirlitz registry-office. Peregrin Weiss baptized Ernst Mach into the Roman Catholic Church in Turas/Tuřany. Despite his Catholic background, he later on became an atheist.
  
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  Friedrich Goltz
  Friedrich Leopold Goltz (14 August 1834 in Posen (Poznań), Grand Duchy of Posen – 5 May 1902 in Strasbourg) was a German physiologist and nephew of the writer Bogumil Goltz.
  Goltz held various university positions in Königsberg, Halle and Strasbourg, Germany. He was known for his experiments in neurophysiology, and was the first person to perform a hemispherectomy on a dog.
  In 1870 he introduced the "hydrostatic concept" involving the semicircular canals of the inner ear and their ability to transmit sensations of position, and therefore providing assistance in equilibrioception. Goltz proposed that the canals dealt mainly with the equilibrium of the head, and that the movements of the body were regulated by the more or less conscious awareness an individual has of the position of his head in space.
  Goltz held a unitary view of brain function, which he demonstrated in London at the International Medical Congress of 1881. Here he showed that a dog with sections of its cerebral cortex removed, could still remain functional. Conversely, Scottish neurologist David Ferrier held the belief of localization of cerebral functions, which he demonstrated at the same conference. Ferrier presented macaque monkeys with particular paralysis following specific surgeries of the motor cortex. Ferrier's demonstration of localized functionality impressed the medical community, and was seen as a major impetus in the development of neurological surgery.
  
  wn.com/Friedrich_Goltz
• Heinrich Gomperz
  Heinrich Gomperz (January 18, 1873, Vienna, Austria - December 27, 1942, Los Angeles, California) was an Austrian philosopher.
  He was a son of Theodor Gomperz. He was a Sigmund Freud patient and was married to Ada Stepnitz.
  
  
  
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  Immanuel Kant
  Immanuel Kant (German pronunciation: [ɪˈmaːnu̯eːl ˈkant]; 22 April 1724 – 12 February 1804) was a German philosopher from Königsberg (today Kaliningrad of Russia), who researched, lectured, and wrote on philosophy and anthropology during the Enlightenment at the end of the 18th century. At the time, there were major successes and advances in the sciences (for example, Isaac Newton, Carl Friedrich Gauss, and Robert Boyle) applying reason and logic.
  Kant’s major work, the Critique of Pure Reason (Kritik der reinen Vernunft, 1781), aimed to unite reason with experience to move beyond what he took to be failures of traditional philosophy and metaphysics. He hoped to end an age of speculation where objects outside experience were used to support what he saw as futile theories, while opposing the skepticism of thinkers such as Descartes, Berkeley and Hume.
  He stated:
  Kant proposed a ‘Copernican Revolution’ in reverse, saying that:
  Kant published other important works on ethics, religion, law, aesthetics, astronomy, and history. These included the Critique of Practical Reason (Kritik der praktischen Vernunft, 1788) and the Metaphysics of Morals (Die Metaphysik der Sitten, 1797), which dealt with ethics. And the Critique of Judgment (Kritik der Urteilskraft, 1790), which looks at aesthetics and teleology. He aimed to resolve disputes between empirical and rationalist approaches. The former asserted that all knowledge comes through experience; the latter maintained that reason and innate ideas were prior. Kant argued that experience is purely subjective without first being processed by pure reason. He also said that using reason without applying it to experience only leads to theoretical illusions. The free and proper exercise of reason by the individual was both a theme of the Enlightenment, and of Kant's approaches to the various problems of philosophy.
  
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  Isaac Newton
  Sir Isaac Newton PRS MP (25 December 1642 – 20 March 1727 [NS: 4 January 1643 – 31 March 1727]) was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived." His monograph Philosophiæ Naturalis Principia Mathematica, published in 1687, lays the foundations for most of classical mechanics. In this work, Newton described universal gravitation and the three laws of motion, which dominated the scientific view of the physical universe for the next three centuries. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws, by demonstrating the consistency between Kepler's laws of planetary motion and his theory of gravitation, thus removing the last doubts about heliocentrism and advancing the Scientific Revolution.
  
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  Josef Breuer
  Josef Breuer (January 15, 1842 Vienna – June 20, 1925 Vienna) was an Austrian physician whose works laid the foundation of psychoanalysis.
  Born in Vienna, his father, Leopold Breuer, taught religion in Vienna's Jewish community. Breuer's mother died when he was quite young, and he was raised by his maternal grandmother and educated by his father until the age of eight. He graduated from the Akademisches Gymnasium of Vienna in 1858 and then studied at the university for one year, before enrolling in the medical school of the University of Vienna. He passed his medical exams in 1867 and went to work as assistant to the internist Johann Oppolzer at the university.
  A close friend, mentor, and collaborator with Sigmund Freud, Breuer is perhaps best known for his work with Anna O. (the pseudonym of Bertha Pappenheim), a woman suffering from "paralysis of her limbs, and anaesthesias, as well as disturbances of vision and speech."
  Breuer observed that her symptoms were reduced or disappeared after she described them to him. Anna O. humorously called this procedure chimney sweeping. She also coined the more serious appellation for this form of therapy, "her talking cure," which is widely regarded as the basis of Freudian psychoanalysis.
  
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  Ludwig Boltzmann
  Ludwig Eduard Boltzmann (February 20, 1844 – September 5, 1906) was an Austrian physicist famous for his founding contributions in the fields of statistical mechanics and statistical thermodynamics. He was one of the most important advocates for atomic theory at a time when that scientific model was still highly controversial.
  Boltzmann was born in Vienna, the capital of the Austrian Empire. His father, Ludwig Georg Boltzmann, was a tax official. His grandfather, who had moved to Vienna from Berlin, was a clock manufacturer, and Boltzmann’s mother, Katharina Pauernfeind, was originally from Salzburg. He received his primary education from a private tutor at the home of his parents. Boltzmann attended high school in Linz, Upper Austria. At age 15, Boltzmann lost his father.
  Boltzmann studied physics at the University of Vienna, starting in 1863. Among his teachers were Josef Loschmidt, Joseph Stefan, Andreas von Ettingshausen and Jozef Petzval. Boltzmann received his PhD degree in 1866 working under the supervision of Stefan; his dissertation was on kinetic theory of gases. In 1867 he became a Privatdozent (lecturer). After obtaining his doctorate degree, Boltzmann worked two more years as Stefan’s assistant. It was Stefan who introduced Boltzmann to Maxwell's work.
  
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• Marilyn vos Savant
  Marilyn vos Savant ( /ˌvɒs səˈvɑːnt/; born August 11, 1946) is an American magazine columnist, author, lecturer, and playwright who rose to fame through her listing in the Guinness Book of World Records under "Highest IQ". Since 1986 she has written "Ask Marilyn", a Sunday column in Parade magazine in which she solves puzzles and answers questions from readers on a variety of subjects.
  Vos Savant was born Marilyn Mach in St. Louis, Missouri, to Joseph Mach and Marina vos Savant, who had immigrated to the United States from Germany and Italy respectively. Vos Savant believes that both men and women should keep their premarital surnames for life, with sons taking their fathers' surnames and daughters their mothers'. The word "savant", meaning a person of learning, appears twice in her family: her maternal grandmother's maiden name was Savant, while her maternal grandfather's surname was vos Savant. Vos Savant is of Italian, German, and Austrian ancestry—she is a descendant of physicist and philosopher Ernst Mach.
  
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  Max Planck
  Max Karl Ernst Ludwig Planck, ForMemRS, (April 23, 1858 – October 4, 1947) was a German physicist who discovered quantum physics, initiating a revolution in natural science and philosophy. He is regarded as the founder of quantum theory, for which he received the Nobel Prize in Physics in 1918.
  Planck came from a traditional, intellectual family. His paternal great-grandfather and grandfather were both theology professors in Göttingen; his father was a law professor in Kiel and Munich; and his paternal uncle was a judge.
  Planck was born in Kiel, Holstein, to Johann Julius Wilhelm Planck and his second wife, Emma Patzig. He was baptised with the name of Karl Ernst Ludwig Marx Planck; of his given names, Marx (a now obsolete variant of Markus or maybe simply an error for Max, which is actually short for Maximilian) was indicated as the primary name. However, by the age of ten he signed with the name Max and used this for the rest of his life.
  He was the sixth child in the family, though two of his siblings were from his father's first marriage. Among his earliest memories was the marching of Prussian and Austrian troops into Kiel during the Danish-Prussian war of 1864. In 1867 the family moved to Munich, and Planck enrolled in the Maximilians gymnasium school, where he came under the tutelage of Hermann Müller, a mathematician who took an interest in the youth, and taught him astronomy and mechanics as well as mathematics. It was from Müller that Planck first learned the principle of conservation of energy. Planck graduated early, at age 17. This is how Planck first came in contact with the field of physics.
  
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  Nikola Tesla
  Nikola Tesla (Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, physicist, mechanical engineer, electrical engineer, and futurist. He was an important contributor to the use of commercial electricity, and is best known for developing the modern alternating current (AC) electrical supply system. His many revolutionary developments in the field of electromagnetism in the late 19th and early 20th centuries were based on the theories of electromagnetic technology discovered by Michael Faraday. Tesla's patents and theoretical work also formed the basis of wireless communication and the radio.
  Born in the village of Smiljan (now part of Gospić, present day Croatia), Tesla was a subject of the Austrian Empire by birth and later became an American citizen. Because of his 1894 demonstration of short range wireless communication through radio and as the eventual victor in the "War of Currents", he was widely respected as one of the greatest electrical engineers who worked in America. He pioneered modern electrical engineering and many of his discoveries were of groundbreaking importance. In the United States during this time, Tesla's fame rivaled that of any other inventor or scientist in history or popular culture. Tesla demonstrated wireless energy transfer to power electronic devices in 1891, and aspired to intercontinental wireless transmission of industrial power in his unfinished Wardenclyffe Tower project.
  
  wn.com/Nikola_Tesla
• Otto Neurath
  Otto Neurath (Vienna, December 10, 1882 - Oxford, December 22, 1945) was an Austrian philosopher of science, sociologist, and political economist. Before he was to flee his native country in 1934, Neurath was one of the leading figures of the Vienna Circle.
  Neurath was born in Vienna, the son of Wilhelm Neurath (1840–1901), a well-known political economist at the time. He studied mathematics in Vienna and gained his Ph.D. in the department of Political Science and Statistics at the University of Berlin.
  He married Anna Schapire in 1907. She died as a result of childbirth (Paul Neurath) in 1911, and he married a close friend, the mathematician and philosopher Olga Hahn. Perhaps because of Olga's blindness and then because of the outbreak of war, his son, Paul Neurath was sent to a children's home outside Vienna, where Neurath's mother lived, and returned to live with his father and Olga when he was nine years old.
  Neurath taught political economy at the Neue Wiener Handelsakademie (New College of Commerce, Vienna) until war broke out. Subsequently he became director of the Deutsches Kriegwirtschaftsmuseum (German Museum of War Economy, later the Deutsches Wirtschaftmuseum) at Leipzig. Wolfgang Schumann, known from the Dürerbund for which Neurath had written many articles, urged him to work out a plan for socialization. Neurath joined the German Social Democratic Party in 1918-19 and ran an office for central economic planning in Munich. When the Bavarian Soviet Republic was defeated, Neurath was imprisoned but returned to Austria after intervention from the Austrian government. While in prison he wrote "Anti-Spengler", a critical attack on Oswald Spengler's "Decline of the West".
  
  wn.com/Otto_Neurath
• Philipp Frank
  Philipp Frank (March 20, 1884, Vienna, Austria - July 21, 1966, Cambridge, Massachusetts, USA) was a physicist, mathematician and also an influential philosopher during the first half of the 20th century. He was a logical-positivist, and a member of the Vienna Circle.
  He studied physics at the University of Vienna and graduated in 1907 with a thesis in theoretical physics under the supervision of Ludwig Boltzmann. Albert Einstein recommended him as his successor for a professorship at the German Charles-Ferdinand University of Prague, a position which he held from 1912 until 1938. He then emigrated to the United States, where he became a lecturer of physics and mathematics at Harvard University.
  Astronomer Halton Arp described Frank's Philosophy of Science class at Harvard as being his favorite elective.
  He was a colleague and admirer of both Mach and Einstein. In lectures given during World War II at Harvard, Frank attributed to Mach himself the following graphic expression of "Mach's Principle":
  
  wn.com/Philipp_Frank
• 
  Pierre Duhem
  Pierre Maurice Marie Duhem ([pjˈɛʁ moʁˈis maʁˈi dyˈɛm] ( listen); 9 June 1861 – 14 September 1916) was a French physicist, mathematician and philosopher of science, best known for his writings on the indeterminacy of experimental criteria and on scientific development in the Middle Ages. Duhem also made major contributions to the science of his day, particularly in the fields of hydrodynamics, elasticity, and thermodynamics.
  Duhem's views on the philosophy of science are explicated in The Aim and Structure of Physical Theory. In this work, he opposed Newton's statement that the Principia's law of universal mutual gravitation was deduced from 'phenomena', including Kepler's second and third laws. Newton's claims in this regard had already been attacked by critical proof-analyses of the German logician Leibniz and then most famously by Immanuel Kant, following Hume's logical critique of induction. But the novelty of Duhem's work was his proposal that Newton's theory of universal mutual gravity flatly contradicted Kepler's Laws of planetary motion because the interplanetary mutual gravitational perturbations caused deviations from Keplerian orbits. Since no proposition can be validly logically deduced from any it contradicts, according to Duhem, Newton must not have logically deduced his law of gravitation directly from Kepler's Laws.
  
  wn.com/Pierre_Duhem
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  Richard Avenarius
  Richard Heinrich Ludwig Avenarius (November 19, 1843, Paris – August 18, 1896, Zurich) was a German-Swiss philosopher. He formulated the radical positivist doctrine of "empirical criticism" or empirio-criticism.
  Avenarius attended the Nicolaischule in Leipzig and studied in Zurich, Berlin, and Leipzig. At the University of Leipzig, he received the Doctor of Philosophy in 1868 with his thesis on Baruch Spinoza and his pantheism, obtained the habilitation in 1876 and taught as Privatdozent. One year later, he became professor at the University of Zurich. He died in Zurich in 1896.
  Avenarius believed that scientific philosophy must be concerned with purely descriptive definitions of experience, which must be free of both metaphysics and materialism. His opposition to the materialist assertions of Karl Vogt resulted in an attack upon empirio-criticism by Vladimir Lenin in the latter's Materialism and Empirio-criticism.
  Avenarius' principal works are the famously difficult Kritik der reinen Erfahrung (Critique of Pure Experience, 1888-1890) and The Human Concept of the World (1891) which influenced Ernst Mach, Ber Borochov and, to a lesser extent, William James.
  
  wn.com/Richard_Avenarius
• 
  Robert Musil
  Robert Musil (German pronunciation: [ˈmuːzɪl] or [ˈmuːsɪl]; 6 November 1880 – 15 April 1942) was an Austrian writer. His unfinished long novel The Man Without Qualities (German: Der Mann ohne Eigenschaften) is generally considered to be one of the most important modernist novels. However, this novel has not been widely read because of its delayed publication and also because of the lengthy and intricate plot that foresaw the impending disaster in Europe after the first world war.
  Musil was the son of engineer Alfred Edler von Musil (1846, Temesvár – 1924) and his wife Hermine Bergauer (1853, Linz – 1924), who lived together with an unrelated "uncle" Heinrich Reiter (born 1856), the houseguest in the Musil family. The family moved to Chomutov until October 1881, and in 1891 father was appointed to the chair of Mechanical Engineering at the German Technical University in Brno, and awarded a hereditary nobility in the Austro-Hungarian Empire shortly before it collapsed. He was a second cousin of orientalist Alois Musil.
  
  wn.com/Robert_Musil
• Rudolf Carnap
  Rudolf Carnap (May 18, 1891 – September 14, 1970) was an influential German-born philosopher who was active in Europe before 1935 and in the United States thereafter. He was a major member of the Vienna Circle and an advocate of logical positivism.
  Carnap was born to a west German family that had been humble until his parents' generation. He began his formal education at the Barmen Gymnasium. From 1910 to 1914, he attended the University of Jena, intending to write a thesis in physics. But he also studied carefully Kant's Critique of Pure Reason during a course taught by Bruno Bauch, and was one of very few students to attend Gottlob Frege's courses in mathematical logic. After serving in the German army during World War I for three years, he was given permission to study physics at the University of Berlin, 1917–18, where Albert Einstein was a newly appointed professor. Carnap then attended the University of Jena, where he wrote a thesis defining an axiomatic theory of space and time. The physics department said it was too philosophical, and Bruno Bauch of the philosophy department said it was pure physics. Carnap then wrote another thesis, with Bauch's supervision, on the theory of space in a more orthodox Kantian style, and published as Der Raum (Space) in a supplemental issue of Kant-Studien (1922). In it he makes the clear distinction between formal, physical and perceptual (e.g., visual) spaces.
  
  wn.com/Rudolf_Carnap
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  Vladimir Lenin
  Vladimir Ilyich Lenin (Russian: Владимир Ильич Ленин; IPA: [vlɐˈdʲimʲɪr ɪlʲˈjitɕ ˈlʲenʲɪn] ( listen); 22 April [O.S. 10 April] 1870 – 21 January 1924) was a Russian Marxist revolutionary, intellectual and politician who led the October Revolution of 1917. As leader of the Bolsheviks, he headed the Soviet state during its initial years (1917–1924), as it fought to establish control of Russia in the Russian Civil War and worked to create a socialist economic system.
  As a politician, Lenin was a persuasive and charismatic orator. As an intellectual his extensive theoretic and philosophical developments of Marxism produced Marxism–Leninism, a pragmatic Russian application of Marxism that emphasized the critical role played by a committed and disciplined political vanguard in the revolutionary process, while defending the possibility of a socialist revolution in less advanced capitalist countries through an alliance of the proletarians with the rural peasantry.
  Lenin was born Vladimir Ilyich Ulyanov (Russian: Владимир Ильич Ульянов) on 22 April [O.S. 10 April] 1870 in the town of Simbirsk in the Russian Empire. Simbirsk, a rural town on the River Volga nearly 1,500 miles from the capital Saint Petersburg, would be renamed upon Ulyanov's death fifty-four years later as "Ulyanovsk" in his honour. That same year, Saint Petersburg itself would be renamed Leningrad after Ulyanov's better-known cadre name.
  
  wn.com/Vladimir_Lenin
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  Wolfgang Pauli
  Wolfgang Ernst Pauli (25 April 1900 – 15 December 1958) was an Austrian theoretical physicist and one of the pioneers of quantum physics. In 1945, after being nominated by Albert Einstein, he received the Nobel Prize in Physics for his "decisive contribution through his discovery of a new law of Nature, the exclusion principle or Pauli principle," involving spin theory, underpinning the structure of matter and the whole of chemistry.
  Pauli was born in Vienna to a chemist Wolfgang Joseph Pauli (né Wolf Pascheles, 1869–1955) and his wife Bertha Camilla Schütz. His middle name was given in honor of his godfather, physicist Ernst Mach. Pauli's paternal grandparents were from prominent Jewish families of Prague; his great-grandfather was the Czech-Jewish publisher Wolf Pascheles. His father converted from Judaism to Roman Catholicism shortly before his marriage in 1899. His mother, Bertha Schütz, was raised in her mother's Roman Catholic religion; her father was Jewish writer Friedrich Schütz. Pauli was raised as a Roman Catholic, although eventually he and his parents left the Church.
  
  wn.com/Wolfgang_Pauli

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