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Gauss's Pythagorean Right Triangle Proposal
Gauss's Pythagorean right triangle proposal is an idea attributed to Carl Friedrich Gauss for a method to signal extraterrestrial beings by constructing an immense right triangle and three squares on the surface of the Earth. The shapes would be a symbolic representation of the Pythagorean theorem, large enough to be seen from the Moon or Mars. Although credited in numerous sources as originating with Gauss, with exact details of the proposal set out, the specificity of detail, and even whether Gauss made the proposal, have been called into question. Many of the earliest sources do not actually name Gauss as the originator, instead crediting a "German astronomer" or using other nonspecific descriptors, and in some cases naming a different author entirely. The details of the proposal also change significantly upon different retellings. Nevertheless, Gauss's writings reveal a belief and interest in finding a method to contact extraterrestrial life, and that he did, at the least, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pythagorean
Pythagorean, meaning of or pertaining to the ancient Ionian mathematician, philosopher, and music theorist Pythagoras, may refer to: Philosophy * Pythagoreanism, the esoteric and metaphysical beliefs purported to have been held by Pythagoras * Neo-Pythagoreanism, a school of philosophy reviving Pythagorean doctrines that became prominent in the 1st and 2nd centuries AD * Pythagorean diet, the name for vegetarianism before the nineteenth century Mathematics * Pythagorean theorem * Pythagorean triple * Pythagorean prime * Pythagorean trigonometric identity * Table of Pythagoras, another name for the multiplication table Music * Pythagorean comma * Pythagorean hammers * Pythagorean tuning Other uses * Pythagorean cup * Pythagorean expectation, a baseball statistical term * Pythagorean letter See also * List of things named after Pythagoras This is a list of things named after Pythagoras, the ancient Greek philosopher, mystic, mathematician, and music theorist. Philosophy and my ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chambers's Edinburgh Journal
''Chambers's Edinburgh Journal'' was a weekly 16-page magazine started by William Chambers in 1832. The first edition was dated 4 February 1832, and priced at one penny. Topics included history, religion, language, and science. William was soon joined as joint editor by his brother Robert, who wrote many of the articles for the early issues, and within a few years the journal had a circulation of 84,000. From 1847 to 1849 it was edited by William Henry Wills. In 1854 the title was changed to ''Chambers's Journal of Popular Literature, Science, and Art'', and changed again to ''Chambers's Journal'' at the end of 1897. The journal was produced in Edinburgh until the late 1850s, by which time the author James Payn had taken over as editor, and production was moved to London. Serialised fiction from major authors, including Payn himself, became one of the journal's major attractions following his arrival. Among its long-standing contributors was Camilla Dufour Crosland Camilla D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Siberia
The early history of Siberia was greatly influenced by the sophisticated nomadic civilizations of the Scythians ( Pazyryk) on the west of the Ural Mountains and Xiongnu ( Noin-Ula) on the east of the Urals, both flourishing before the Christian era. The steppes of Siberia were occupied by a succession of nomadic peoples, including the Khitan people, various Turkic peoples, and the Mongol Empire. In the Late Middle Ages, Tibetan Buddhism spread into the areas south of Lake Baikal. During the Russian Empire, Siberia was chiefly developed as an agricultural province. The government also used it as a place of exile, sending Avvakum, Dostoevsky, and the Decemberists, among others, to work camps in the region. During the 19th century, the Trans-Siberian Railway was constructed, supporting industrialization. This was also aided by discovery and exploitation of vast reserves of Siberian mineral resources. Prehistory and antiquity According to the field of genetic genealogy, people f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics And Culture
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] |
Interstellar Messages
This is a list of interstellar radio messages (IRMs) transmitted from Earth. Classification of interstellar radio messages There are twelve realized IRM projects: * The Morse Message (1962) * Arecibo message (1974), one transmission to Messier 13 * Cosmic Call 1 (1999), four transmissions to nearby Sun-like stars * Teen Age Message (2001), six transmissions * Cosmic Call 2 (2003), five transmissions * A Message From Earth (2008), one transmission to the Gliese 581 planetary system * Across the Universe (2008) * Hello From Earth (HFE, 2009) one transmission to the Gliese 581 planetary system * Wow! Reply (2012), three transmissions to Hipparcos 34511, Hipparcos 33277 and Hipparcos 43587 in reply to the Wow! signal * Lone Signal (2013) * A Simple Response to an Elemental Message (2016) * Sónar Calling GJ273b (2017) "Across the Universe", "Hello From Earth" and "A Simple Response to an Elemental Message" are not always considered serious. The first two of them were sent to Polari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Von Gruithuisen
Baron Franz von Paula (Franciscus de Paula) Gruithuisen (19 March 1774 – 21 June 1852) was a Bavarian physician and astronomer. He taught medical students before becoming a professor of astronomy at the University of Munich in 1826. During his period of medical studies and instruction, he was noted for his contributions to urology and lithotripsy. He developed ideas on safer methods to remove bladder stones transurethrally, and his instruments served as models for subsequent devices. Like others before and since his time, Gruithuisen believed that the Earth's Moon was habitable. He made multiple observations of the lunar surface that supported his beliefs, including his announcement of the discovery of a city in the rough terrain to the north of Schröter crater he named the ''Wallwerk''. This region contains a series of somewhat linear ridges that have a fishbone-like pattern, and, with the small refracting telescope he was using, could be perceived as resembling buildings c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edinburgh New Philosophical Journal
The ''Edinburgh Philosophical Journal'' was founded by its editors Robert Jameson and David Brewster in 1819 as a scientific journal to publish articles on the latest science of the day. In 1826 the two editors fell out, and Jameson continued publication as the ''Edinburgh New Philosophical Journal''. Jameson died in 1854, and his place as editor was then taken over by Thomas Anderson, Sir William Jardine, John Hutton Balfour and, for America, Henry Darwin Rogers. In 1864 it was merged into the ''Quarterly Journal of Science'', London. The ''Edinburgh Philosophical Journal'' was published by Archibald Constable and Company, then in 1826 publication of the ''Edinburgh New Philosophical Journal'' was taken on by Adam Black, later A & C Black of Edinburgh. The journal covered emerging scientific developments in chemistry, optics, electricity, magnetism, and natural history, as well as related topics including practical mechanics, inventions, and scientific instruments. As well as ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Wilhelm Matthäus Olbers
Heinrich Wilhelm Matthias Olbers (; ; 11 October 1758 – 2 March 1840) was a German physician and astronomer. Life and career Olbers was born in Arbergen, Germany, today part of Bremen, and studied to be a physician at Göttingen (1777–80). While he was at Göttingen, he studied mathematics with Abraham Gotthelf Kästner. In 1779, while attending to a sick fellow student, he devised a method of calculating cometary orbits which made an epoch in the treatment of the subject. It was the first satisfactory method of calculating cometary orbits. After his graduation in 1780, he began practicing medicine in Bremen. At night he dedicated his time to astronomical observation, making the upper story of his home into an observatory. In 1800, Olbers was one of 24 astronomers invited to participate in the group known as the "celestial police", dedicated to finding new planets in the solar system. On 28 March 1802, Olbers discovered and named the asteroid Pallas. Five years later, on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris Observatory
The Paris Observatory (french: Observatoire de Paris ), a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centers in the world. Its historic building is on the Left Bank of the Seine in central Paris, but most of the staff work on a satellite campus in Meudon, a suburb southwest of Paris. The Paris Observatory was founded in 1667. Construction was completed by the early 1670s and coincided with a major push for increased science, and the founding of the Royal Academy of Sciences. King Louis XIV's minister of finance organized a "scientific powerhouse" to increase understanding of astronomy, maritime navigation, and science in general. Through the centuries the Paris Observatory has continued in support of astronomical activities, and in the 21st century connects multiple sites and organizations, supporting astronomy and science, past and present. Constitution Administrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
François Arago
Dominique François Jean Arago ( ca, Domènec Francesc Joan Aragó), known simply as François Arago (; Catalan: ''Francesc Aragó'', ; 26 February 17862 October 1853), was a French mathematician, physicist, astronomer, freemason, supporter of the Carbonari revolutionaries and politician. Early life and work Arago was born at Estagel, a small village of 3,000 near Perpignan, in the ' of Pyrénées-Orientales, France, where his father held the position of Treasurer of the Mint. His parents were François Bonaventure Arago (1754–1814) and Marie Arago (1755–1845). Arago was the eldest of four brothers. Jean (1788–1836) emigrated to North America and became a general in the Mexican army. Jacques Étienne Victor (1799–1855) took part in Louis de Freycinet's exploring voyage in the ''Uranie'' from 1817 to 1821, and on his return to France devoted himself to his journalism and the drama. The fourth brother, Étienne Vincent (1802–1892), is said to have collaborated with Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Xaver Von Zach
Baron Franz Xaver von Zach (''Franz Xaver Freiherr von Zach''; 4 June 1754 – 2 September 1832) was a Hungarian astronomer born at Pest, Hungary (now Budapest in Hungary). Biography Zach studied physics at the Royal University of Pest, and served for some time in the Austrian army. He taught at the University of Lemberg (now Lviv, Ukraine) and worked in its observatory. He lived in Paris in 1780–83, and in London from 1783 to 1786 as tutor in the house of the Saxon ambassador, Hans Moritz von Brühl. In Paris and London he entered the circles of astronomers like Joseph de Lalande, Pierre-Simon Laplace and William Herschel. In 1786 he was appointed by Ernest II, Duke of Saxe-Gotha-Altenburg director of the new observatory on Seeberg hill at Gotha, which was finished in 1791. At the close of the 18th century, he organised the "celestial police", a group of twenty-four astronomers, to prepare for a systematic search for the "missing planet" predicted by the Titius-Bode law b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simon Newcomb
Simon Newcomb (March 12, 1835 – July 11, 1909) was a Canadian–American astronomer, applied mathematician, and autodidactic polymath. He served as Professor of Mathematics in the United States Navy and at Johns Hopkins University. Born in Nova Scotia, at the age of 19 Newcomb left an apprenticeship to join his father in Massachusetts, where the latter was teaching. Though Newcomb had little conventional schooling, he completed a BSc at Harvard in 1858. He later made important contributions to timekeeping, as well as to other fields in applied mathematics, such as economics and statistics. Fluent in several languages, he also wrote and published several popular science books and a science fiction novel. Biography Early life Simon Newcomb was born in the town of Wallace, Nova Scotia. His parents were John Burton Newcomb and his wife Miriam Steeves. His father was an itinerant school teacher, and frequently moved in order to teach in different parts of Canada, particularly in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
