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Ioannis Papadakis
Ioannis G. Papadakis (1820 - 1876 el, Ιωάννης Παπαδάκης) was an author, mathematician, physicist, astronomer, meteorologist, and professor. He was the second director of the National Observatory of Athens. He temporarily succeeded Georgios Konstantinos Vouris until Johann Friedrich Julius Schmidt replaced him as the third director of the observatory. His most notable work was the observation of the Moons of Jupiter and other meteorological observations in the 1850s. He was also a Scottish rite freemason. Biography Ioannis was born on the island of Crete around 1820. The Greek War of Independence broke out the same period. His father Giorgios was an active participant in the revolution. Giorgios nickname was Ksepapas. He was a commander in Greek War of Independence around 1821. He was also responsible for the Greek rebel's economic affairs. He represented the island of Crete as a proxy in the Second National Assembly held in Astros Kynourias between 29 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich Julius Schmidt
Johann Friedrich Julius Schmidt (25 October 1825 in Eutin, Germany – 7 February 1884 in Athens, Greece) was a German astronomer and geophysicist. He was the director of the National Observatory of Athens in Greece from 1858 to 1884. Julius Schmidt was tireless in his work, it was suggested by William Henry Pickering that he perhaps devoted more of his life than any other man to the study of the Moon. During his lifetime, he made some of the most complete lunar maps of the 19th century. According to his own analysis, he mapped no less than 32,856 craters, with Mädler mapping 7,735 and Lohrmann 7,177. Schmidt also mapped 348 lunar rilles. In six years, he made almost 57,000 micrometer settings to make 3050 height measurements. Biography Early life Schmidt was born in the town of Eutin to his father Carl Friedrich Schmidt, a glazier and mother Maria Elisabeth Quirling. He went to school at a gymnasium in Hamburg, where he impressed with his sense of form and drawing abiliti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Freemasons
Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor of all known varieties of Greek. **Mycenaean Greek, most ancient attested form of the language (16th to 11th centuries BC). **Ancient Greek, forms of the language used c. 1000–330 BC. **Koine Greek, common form of Greek spoken and written during Classical antiquity. **Medieval Greek or Byzantine Language, language used between the Middle Ages and the Ottoman conquest of Constantinople. **Modern Greek, varieties spoken in the modern era (from 1453 AD). *Greek alphabet, script used to write the Greek language. *Greek Orthodox Church, several Churches of the Eastern Orthodox Church. *Ancient Greece, the ancient civilization before the end of Antiquity. *Old Greek, the language as spoken from Late Antiquity to around 1500 AD. Other uses * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Hazzidakis
Ioannis "John" N. Hazzidakis (Ιωάννης Χατζιδάκις, or ''Hatzidakis'' or ''Chatzidakis'', April 13, 1844 – 1921) was a Greek mathematician, physicist, author, and professor. He is one of the most important mathematicians of the modern Greek scientific era. His professor was world renowned Greek mathematician Vassilios Lakon. He also studied with famous German mathematicians Ernst Kummer, Leopold Kronecker, Karl Weierstrass. He systematically worked in the field of research and education. He wrote textbooks in the field of algebra, geometry, and calculus. Hazzidakis essentially adopted some elements of Lacon's Geometry. He introduced the Hazzidakis transform in differential geometry. The Hazzidakis formula for the Hazzidakis transform can be applied in proving Hilbert's theorem on negative curvature, stating that hyperbolic geometry does not have a model in 3-dimensional Euclidean space. Biography He was born in Crete in 1844. He completed his basic edu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vassilios Lakon
Vassilios Lakon ( el, Βασίλειος Λάκων or el, Βασιλείου Ι Λάκωνος, 1831–1900) was an astronomer, mathematician, experimental physicist, philologist, author, and professor. He was a pioneer in 19th-century Greek geometry. He did research in the fields of physics and mathematics. His professors were world-renowned physicist Dimitrios Stroumpos and astronomer Georgios Konstantinos Vouris. He also studied in France with Joseph Bertrand. He was exposed to the works of Joseph Liouville, Augustin-Louis Cauchy, Bernard Lamy, and Jacques Charles François Sturm. Lakon's math textbooks were used in high schools across Greece during the second half of the 19th century. Lakon was born on the island of Kea. He was from a prominent family. He was the first student to receive a doctorate degree in Mathematics from the University of Athens in 1850. He continued his post-doctoral studies in France. He returned to Greece. He introduced modern French math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Sinas
Simon von Sina or Simon Sinas ( el, Σίμων Σίνας; 1810–1876) was a Greece, Greek-Austrian banker, aristocrat, benefactor and diplomat. He was one of the most important benefactors of the Greek nation together with Georgios Sinas. Biography Simon Sinas was born on August 15, 1810 in Vienna. The Sinas family came from the Aromanians, Aromanian settlement of Moscopole in southern Albania. The son of Georgios Sinas, also a benefactor and diplomat, Sinas expanded his father's business. His ethnic origin has been described as Aromanian, Hellenization, Hellenized Aromanian, or Greeks, Greek. Regardless of his ethnic origin, Sinas was part of the social-cultural Greek merchant class which maintained close relations with the newly founded Greek state of his era. He served as Greek consul in Vienna, and later as minister to Austria, the Kingdom of Bavaria, and Germany. He also made major donations to various educational and scientific foundations in Austria, Hungary, and Greece. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgios Sinas
Georgios Sinas ( el, Γεώργιος Σίνας, german: Georg Sina; 20 November 1783 – 18 May 1856) was a Greek-Austrian entrepreneur and banker. He became a national benefactor of Greece and was the father of another Greek national benefactor, Simon Sinas. He was also the founder of the National Observatory of Athens. Biography Georgios Sinas was born in Niš. The Sinas family came from Moscopole, Ottoman Empire (now southern Albania). The ethnic origin of the family has been described as Aromanian, Hellenized Aromanian, or Greek. Regardless of their ethnic origin, the Sinas family in Vienna were part of the social-cultural Greek merchant class which maintained close relations with the newly founded Greek state of their era. At an early age Sinas lost his mother and was raised by his aunt in Serres (today in Greece), where he lived during his first school years. Approximately in 1790 he moved with his father, the tobacco and cotton merchant Georgios Sinas the Elder (1753– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3 September 1843 Revolution
The 3 September 1843 Revolution ( el, Επανάσταση της 3ης Σεπτεμβρίου 1843; N.S. 15 September), was an uprising by the Hellenic Army in Athens, supported by large sections of the people, against the autocratic rule of King Otto. The rebels, led by veterans of the Greek War of Independence, demanded the granting of a constitution and the departure of the Bavarian officials that dominated the government. The revolution succeeded, ushering the period of constitutional monarchy (under the 1844 constitution) and universal suffrage in Greece. Background During the War of Independence, the Greek rebels had passed a series of liberal and progressive constitutions on which the war's provisional governments were based. With the establishment of the monarchy in 1832 and the arrival of the Bavarian prince Otto as king, however, these liberal institutions were discarded. For the next 10 years, Otto and his mainly Bavarian officials would rule in an autocratic man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Of Greece
Otto (, ; 1 June 181526 July 1867) was a Bavarian prince who ruled as King of Greece from the establishment of the monarchy on 27 May 1832, under the Convention of London, until he was deposed on 23 October 1862. The second son of King Ludwig I of Bavaria, Otto ascended the newly created throne of Greece at age 17. His government was initially run by a three-man regency council made up of Bavarian court officials. Upon reaching his majority, Otto removed the regents when they proved unpopular with the people, and he ruled as an absolute monarch. Eventually his subjects' demands for a constitution proved overwhelming, and in the face of an armed (but bloodless) insurrection, Otto granted a constitution in 1843. Throughout his reign Otto was unable to resolve Greece's poverty and prevent economic meddling from outside. Greek politics in this era were based on affiliations with the three Great Powers that had guaranteed Greece's independence, Britain, France and Russia, and Ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimitrios Stroumpos
Dimitrios Stroumpos ( el, Δημήτριος Στρούμπος; 1806 - February 5, 1890) was an astronomer, physicist, mathematician, author, and professor. He was a theoretical physicist. He was a pioneer in 19th-century Greek physics. He helped develop the physics department at the University of Athens. He was the dean. He did extensive research in the field of physics namely: the study of air and energy fields, electricity, magnetism, and telephones. He also studied the motion of molecules and developed a system of scientific observation. He developed the Strombo compass. His contemporaries at the time were Greek scientists Vassilios Lakon, Georgios Konstantinos Vouris, and Ioannis Papadakis. He was replaced as the chair of the physics department by his student world-renowned physicist Timoleon Argyropoulos after his death. Dimitrios was born in Koukouli, Ioannina. He was part of a very important family. The family eventually migrated to Corfu. Both Dimitrios and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Bravais
Auguste Bravais (; 23 August 1811, Annonay, Ardèche – 30 March 1863, Le Chesnay, France) was a French physicist known for his work in crystallography, the conception of Bravais lattices, and the formulation of Bravais law. Bravais also studied magnetism, the northern lights, meteorology, geobotany, phyllotaxis, astronomy, statistics and hydrography. He studied at the Collège Stanislas in Paris before joining the École Polytechnique in 1829, where he was a classmate of groundbreaking mathematician Évariste Galois, whom Bravais actually beat in a scholastic mathematics competition. Towards the end of his studies he became a naval officer, and sailed on the ''Finistere'' in 1832 as well as the ''Loiret'' afterwards. He took part in hydrographic work along the Algerian Coast. He participated in the ''Recherche'' expedition and helped the ''Lilloise'' in Spitzbergen and Lapland. Bravais taught a course in applied mathematics for astronomy in the Faculty of Sciences in Lyon, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
