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Albert Brudzewski
Albert Brudzewski, ''also'' Albert Blar (of Brudzewo), Albert of Brudzewo or Wojciech Brudzewski (in Latin, ''Albertus de Brudzewo''; c.1445–c.1497) was a Polish astronomer, mathematician, philosopher and diplomat. Life Albert (in Polish, ''Wojciech''), who would sign himself "''de Brudzewo''" ("of Brudzewo"), was born about 1445, in Brudzewo, near Kalisz. Scant information exists about his early life. It is only known that as a 23-year-old he matriculated at the Kraków Academy (now Jagiellonian University), where he remained through nearly all his life, teaching there for two decades. He served as the academy's dean, as ''procurator'' (administrator of its property), and as head of the ''Bursa Hungarorum'' ("Hungarians' Dormitory"). Albert is remembered as a remarkable teacher. At the Kraków Academy he impressed students by his extraordinary knowledge of literature, and taught mathematics and astronomy. When in 1490 he became a bachelor of theology, he also lect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brudzewo, Greater Poland Voivodeship
Brudzewo is a village in the administrative district of Gmina Strzałkowo, within Słupca County, Greater Poland Voivodeship, in west-central Poland. It lies approximately north-west of Strzałkowo, north-west of Słupca, and east of the regional capital Poznań. Notable people *Albert Brudzewski Albert Brudzewski, ''also'' Albert Blar (of Brudzewo), Albert of Brudzewo or Wojciech Brudzewski (in Latin, ''Albertus de Brudzewo''; c.1445–c.1497) was a Polish astronomer, mathematician, philosopher and diplomat. Life Albert (in Polis ... (c.1445–c.1497), astronomer, mathematician, philosopher and diplomat References Brudzewo {{Słupca-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turek County
Turek is a town in central Poland with 31,282 inhabitants . It is the capital of Turek County in the Greater Poland Voivodeship. History Turek is first mentioned in the historical record 1136, when it was listed as belonging to the archbishops of Gniezno. It received its city rights in 1341. Administratively it was located in the Sieradz Voivodeship in the Greater Poland Province of the Kingdom of Poland. Turek was annexed by Prussia in 1793 in the Second Partition of Poland, regained by Poles and included within the short-lived Duchy of Warsaw in 1807, and included within so-called Congress Poland in 1815, soon forcibly integrated with the Russian Empire. It was then capital of a district within the Kalisz Governorate. During the January Uprising, it was the site of clashes between Polish insurgents and Russian troops on August 20 and December 28, 1863. Following the end of the First World War in 1918, Turek became part of the Second Polish Republic as the country regained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milan
Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city has 3.26 million inhabitants. Its continuously built-up urban area (whose outer suburbs extend well beyond the boundaries of the administrative metropolitan city and even stretch into the nearby country of Switzerland) is the fourth largest in the EU with 5.27 million inhabitants. According to national sources, the population within the wider Milan metropolitan area (also known as Greater Milan), is estimated between 8.2 million and 12.5 million making it by far the largest metropolitan area in Italy and one of the largest in the EU.* * * * Milan is considered a leading alpha global city, with strengths in the fields of art, chemicals, commerce, design, education, entertainment, fashion, finance, healthcar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavenly Body
An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms ''object'' and ''body'' are often used interchangeably. However, an astronomical body or celestial body is a single, tightly bound, contiguous entity, while an astronomical or celestial ''object'' is a complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures. Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids, moons, planets, and stars are astronomical bodies. A comet may be identified as both body and object: It is a ''body'' when referring to the frozen nucleus of ice and dust, and an ''object'' when describing the entire comet with its diffuse coma and tail. History Astronomical objects such as stars, planets, nebulae, asteroids and comets have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Freely
John Freely (26 June 1926 – 20 April 2017) was an American physicist, teacher, and author of popular travel and history books on Istanbul, Athens, Venice, Turkey, Greece, and the Ottoman Empire. He was the father of writer and Turko-English literary translator Maureen Freely. Life Freely was born in Brooklyn, New York, and grew up there and in Ireland.Derek Johns"John Freely obituary" ''The Guardian'', 5 June 2017. He dropped out of high school and joined the U.S. Navy at the age of 17 for the last two years of World War II, serving with a commando unit in Burma and China. He did his undergraduate work at the traditional American Catholic college, Iona College in New Rochelle, New York, under the G.I. Bill. In 1947 Freely married Dolores 'Toots' Stanley after they had agreed to devote their lives to travel. He died in the UK in 2015 and his remains were interred in Feriköy Protestant Cemetery in Istanbul. Academic career Freely received his PhD in physics at New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipse
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special type of ellipse in which the two focal points are the same. The elongation of an ellipse is measured by its eccentricity e, a number ranging from e = 0 (the limiting case of a circle) to e = 1 (the limiting case of infinite elongation, no longer an ellipse but a parabola). An ellipse has a simple algebraic solution for its area, but only approximations for its perimeter (also known as circumference), for which integration is required to obtain an exact solution. Analytically, the equation of a standard ellipse centered at the origin with width 2a and height 2b is: : \frac+\frac = 1 . Assuming a \ge b, the foci are (\pm c, 0) for c = \sqrt. The standard parametric equation is: : (x,y) = (a\cos(t),b\sin(t)) \quad \text \quad 0\leq t\leq 2\pi. Ellipses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia). The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at , with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density. The Moon orbits Earth at an average distance of , or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days. During each synod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocentric
In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under most geocentric models, the Sun, Moon, stars, and planets all orbit Earth. The geocentric model was the predominant description of the cosmos in many European ancient civilizations, such as those of Aristotle in Classical Greece and Ptolemy in Roman Egypt. Two observations supported the idea that Earth was the center of the Universe: * First, from anywhere on Earth, the Sun appears to revolve around Earth once per day. While the Moon and the planets have their own motions, they also appear to revolve around Earth about once per day. The stars appeared to be fixed on a celestial sphere rotating once each day about an axis through the geographic poles of Earth. * Second, Earth seems to be unmoving from the perspective of an earthbound observer; it feels solid, stable, and stationary. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regiomontanus
Johannes Müller von Königsberg (6 June 1436 – 6 July 1476), better known as Regiomontanus (), was a mathematician, astrologer and astronomer of the German Renaissance, active in Vienna, Buda and Nuremberg. His contributions were instrumental in the development of Copernican heliocentrism in the decades following his death. Regiomontanus wrote under the Latinized name of ''Ioannes de Monteregio'' (or ''Monte Regio''; ''Regio Monte''); the toponym ''Regiomontanus'' was first used by Philipp Melanchthon in 1534. He is named after Königsberg in Lower Franconia, not the larger Königsberg (modern Kaliningrad) in Prussia. Life Although little is known of Regiomontanus' early life, it is believed that at eleven years of age, he became a student at the University of Leipzig, Saxony. In 1451 he continued his studies at Alma Mater Rudolfina, the university in Vienna, Austria. There he became a pupil and friend of Georg von Peuerbach. In 1452 he was awarded his bachelor's deg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Von Peuerbach
Georg von Peuerbach (also Purbach, Peurbach; la, Purbachius; born May 30, 1423 – April 8, 1461) was an Austrian astronomer, poet, mathematician and instrument maker, best known for his streamlined presentation of Ptolemaic astronomy in the ''Theoricae Novae Planetarum.'' Peuerbach was instrumental in making astronomy, mathematics and literature simple and accessible for Europeans during the Renaissance and beyond. Biography Peuerbach's life remains relatively unknown until he enrolled at the University of Vienna in 1446. He was born in the Austrian town of Peuerbach in upper Austria. A horoscope published eighty-nine years after his death places his date of birth specifically on May 30, 1423, though other evidence only indicates that he was born sometime after 1421. He received his Bachelor of Arts in 1448. Georg's intellect was discovered by a priest of his hometown, Dr. Heinrich Barucher. Dr. Barucher recognized Peuerbach's academic abilities from a young age and put him in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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