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Mark Welser
Mark Welser (1558–1614) was a German banker, politician, and astronomer, who engaged in learned correspondence with European intellectuals of his time. Of particular note is his exchange with Galileo Galilei, regarding sunspots. Biography Welser belonged to a rich family of the old German nobility that had emerged in the city of Augsburg. His uncle Bartholomeus Welser was one of the originators of the family wealth; with the Fugger family he financed the imperial election of Charles V, whose counselor he became. He was a commercial leader in Portuguese spices and in the economic growth of Antwerp. He also had an economic relationship with the French crown. In 1528, Bartholomeus, who had outfitted a fleet to the Americas, took control of the colony of Venezuela, obtaining from the emperor the right to retain ownership of it via an annual payment. His descendants kept it until 1555, when Spain took control of Venezuela. At the age of 16, Mark was sent to Padua, where he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scheiner Viewing Sunspots 1625
Scheiner is a German surname. Notable people with the surname include: * Artuš Scheiner (1863–1938), Czech painter and illustrator *Christoph Scheiner (1573/75–1650), Jesuit priest, physicist and astronomer (born c. 1573) *David Scheiner (born 1938), American physician and activist *Elliot Scheiner (born 1947), American record producer and record engineer * Jake Scheiner (born 1995), American infielder/outfielder for the Hiroshima Toyo Carp of Nippon Professional Baseball *Julius Scheiner (1858–1913), German astronomer, astrophysicist and Jesuit *Mordechai Scheiner, Israeli Orthodox rabbi * Rebecca Scheiner, German stage director * Yitzchok Scheiner (1922–2021), Israeli-American rabbi See also * Scheiner (crater), lunar impact crater that lies to the west of the enormous walled plain Clavius, named after Christoph Scheiner * Shiner (surname) *Schein Schein is a surname. Notable people with the surname include: * Charles Schein (1928–2003), French polymer chemist of Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1558 Births
__NOTOC__ Year 1558 ( MDLVIII) was a common year starting on Saturday of the Julian calendar. Events January–March * January 7 – French troops, led by Francis, Duke of Guise, take Calais, the last continental possession of the Kingdom of England, in the Siege of Calais. * January 22 – The Livonian War begins. * February 2 – The University of Jena is founded in Thuringia, Germany. * February 4 – (16th day of 1st month of Eiroku 1) Takeda Shingen becomes the shugo (military governor) of Shinano Province after his successful military campaign there. * February 5 – Arauco War: Pedro de Avendaño, with sixty men, captures Caupolicán (the Mapuche Gran Toqui), who is leading their first revolt against the Spanish Empire (near Antihuala), encamped with a small band of followers. * March 8 – The city of Pori () is founded by Duke John on the shores of the Gulf of Bothnia. April–June * April 17 – The siege of Thionvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gout
Gout ( ) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and Joint effusion, swollen joint, caused by the deposition of needle-like crystals of uric acid known as monosodium urate crystals. Pain typically comes on rapidly, reaching maximal intensity in less than 12 hours. The Metatarsophalangeal joint, joint at the base of the Hallux, big toe is affected (''Podagra'') in about half of cases. It may also result in Tophus, tophi, kidney stones, or Urate nephropathy, kidney damage. Gout is due to persistently elevated levels of uric acid (urate) in the blood (hyperuricemia). This occurs from a combination of diet, other health problems, and genetic factors. At high levels, uric acid crystallizes and the crystals deposit in joints, tendons, and surrounding tissues, resulting in an attack of gout. Gout occurs more commonly in those who regularly drink beer or sugar-sweetened beverages; eat foods that are high in purines such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accident (philosophy)
An accident ( Greek ), in metaphysics and philosophy, is a property that the entity or substance has contingently, without which the substance can still retain its identity. An accident does not affect its essence, according to many philosophers. It does not mean an "accident" as used in common speech, a chance incident, normally harmful. Examples of accidents are color, taste, movement, and stagnation. Accident is contrasted with essence: a designation for the property or set of properties that make an entity or substance what it fundamentally is, and which it has by necessity, and without which it loses its identity. Aristotle made a distinction between the essential and accidental properties of a thing. Thomas Aquinas and other Catholic theologians have employed the Aristotelian concepts of substance and accident in articulating the theology of the Eucharist, particularly the transubstantiation of bread and wine into body and blood. In modern philosophy, an accident (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Letters On Sunspots
'' Letters on Sunspots'' (''Istoria e Dimostrazioni intorno alle Macchie Solari'') was a pamphlet written by Galileo Galilei in 1612 and published in Rome by the Accademia dei Lincei in 1613. In it, Galileo outlined his recent observation of dark spots on the face of the Sun. His claims were significant in undermining the traditional Aristotelian view that the Sun was both unflawed and unmoving. ''The Letters on Sunspots'' was a continuation of ''Sidereus Nuncius,'' Galileo's first work where he publicly declared that he believed that the Copernican system was correct. Previous observations of sunspots Galileo was not the first person to observe sunspots. The earliest apparent reference to them appears in the I Ching of ancient China, while the earliest recorded observation is also Chinese, dating to 364 BC. Around the same time, the first European mention of sunspots is found, by Theophrastus. There were reports from IslamicJ.M. Vaquero, M. Vázquez, The Sun Recorded Throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Fabricius
David Fabricius (9 March 1564 – 7 May 1617) was a Frisian pastor who made two major discoveries in the early days of telescopic astronomy, jointly with his eldest son, Johannes Fabricius (1587–1615). David Fabricius (Latinization of his proper name ''David Faber'', or ''David Goldschmidt''; possibly Hebrew) was born at Esens, studied at the University of Helmstedt starting in 1583 and served as pastor for small towns near his birthplace in Frisia (now northwest Germany and northeast Netherlands), at Resterhafe near Dornum in 1584 and at Osteel in 1603. As was common for Protestant ministers of the day, he dabbled in science: his particular interest was astronomy. Fabricius corresponded with astronomer Johannes Kepler. Scientific work Fabricius discovered the first known periodic variable star (as opposed to cataclysmic variables, such as novas and supernovas), Mira, in August 1596. At first he believed it to be "just" another nova, as the whole concept of a recurring va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Fabricius
Johann Goldsmid, better known by his Latinisation of names, Latinized name Johann(es) Fabricius (8 January 1587 – 19 March 1616), eldest son of David Fabricius (1564–1617), was a Frisians, Frisian astronomer and a modern era discoverer of sunspots in 1611, preceded by Thomas Harriot and followed by Galileo Galilei.Based on text in main reference. Biography Johannes was born in Resterhafe (East Friesland). He studied at the University of Helmstedt, Wittenberg University and graduated from Leiden University in 1611. He returned from university in the Netherlands with telescopes that he and his father turned on the Sun. Despite the difficulties of observing the Sun directly with a telescope, they noted the existence of sunspots, one of the first confirmed instance of such observations telescopically; sunspots had first been identified without telescopes in ancient China and Greece. Johannes first observed a sunspot on February 27, 1611; in Wittenberg in that year he published the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galileo
Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei ( , , ) or mononymously as Galileo, was an Italian astronomer, physicist and engineer, sometimes described as a polymath. He was born in the city of Pisa, then part of the Duchy of Florence. Galileo has been called the father of observational astronomy, modern-era classical physics, the scientific method, and modern science. Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of the pendulum and " hydrostatic balances". He was one of the earliest Renaissance developers of the thermoscope and the inventor of various military compasses. With an improved telescope he built, he observed the stars of the Milky Way, the phases of Venus, the four largest satellites of Jupiter, Saturn's rings, lunar craters and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Illusion
In visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual perception, percept that arguably appears to differ from reality. Illusions come in a wide variety; their categorization is difficult because the underlying cause is often not clear but a classification proposed by Richard Gregory is useful as an orientation. According to that, there are three main classes: physical, physiological, and cognitive illusions, and in each class there are four kinds: Ambiguities, distortions, paradoxes, and fictions. A classical example for a physical distortion would be the apparent bending of a stick half immersed in water; an example for a physiological paradox is the motion aftereffect (where, despite movement, position remains unchanged). An example for a physiological fiction is an afterimage. Three typical cognitive distortions are the Ponzo illusion, Ponzo, Poggendorff illusion, Poggendorff, and M� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aristotelianism
Aristotelianism ( ) is a philosophical tradition inspired by the work of Aristotle, usually characterized by Prior Analytics, deductive logic and an Posterior Analytics, analytic inductive method in the study of natural philosophy and metaphysics. It covers the treatment of the social sciences under a system of Natural law#Aristotle, natural law. It answers why-questions by a scheme of four causes, including purpose or telos, teleology, and emphasizes virtue ethics. Aristotle and his school wrote tractates on Physics (Aristotle), physics, biology, metaphysics, logic, ethics, aesthetics, poetry, theatre, music, rhetoric, psychology, linguistics, economics, politics, and government. Any school of thought that takes one of Aristotle's distinctive positions as its starting point can be considered "Aristotelian" in the widest sense. This means that different Aristotelian theories (e.g. in ethics or in ontology) may not have much in common as far as their actual content is concerned besi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunspot
Sunspots are temporary spots on the Sun's surface that are darker than the surrounding area. They are one of the most recognizable Solar phenomena and despite the fact that they are mostly visible in the solar photosphere they usually affect the entire solar atmosphere. They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit convection. Sunspots appear within active regions, usually in pairs of opposite magnetic polarity. Their number varies according to the approximately 11-year solar cycle. Individual sunspots or groups of sunspots may last anywhere from a few days to a few months, but eventually decay. Sunspots expand and contract as they move across the surface of the Sun, with diameters ranging from to . Larger sunspots can be visible from Earth without the aid of a telescope. They may travel at relative speeds, or proper motions, of a few hundred meters per second when they first emerge. Indicating intense magneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
