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Haly Abenrudian
Abu'l Hassan Ali ibn Ridwan Al-Misri () (c. 988 - c. 1061) was an Arab of Egyptian origin who was a physician, astrologer and astronomer, born in Giza. He was a commentator on ancient Greek medicine, and in particular on Galen; his commentary on Galen's ''Ars Parva'' was translated by Gerardo Cremonese. However, he is better known for providing the most detailed description of the supernova now known as SN 1006, the brightest stellar event in recorded history, which he observed in the year 1006. This was written in a commentary on Ptolemy's work ''Tetrabiblos''. He was later cited by European authors as Hali, Haly, or Haly Abenrudian. According to Alistair Cameron Crombie he also contributed to the theory of induction. He engaged in a celebrated polemic against another physician, Ibn Butlan of Baghdad. Ali Ibn Ridwan is the likely inspiration for Ambrose Bierce's use of the name, Hali, in his short story, ''An Inhabitant of Carcosa''. The name, Hali, was subsequently used by Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Clock
An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the Sun, Moon, zodiacal constellations, and sometimes major planets. Definition The term is loosely used to refer to any clock that shows, in addition to the time of day, astronomical information. This could include the location of the Sun and Moon in the sky, the age and Lunar phases, the position of the Sun on the ecliptic and the current zodiac sign, the sidereal time, and other astronomical data such as the Moon's nodes (for indicating eclipses) or a rotating star map. The term should not be confused with ''astronomical regulator'', a high precision but otherwise ordinary pendulum clock used in observatories. Astronomical clocks usually represent the Solar System using the geocentric model. The center of the dial is often marked with a disc or sphere representing the Earth, located at the center of the Solar Sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Astrology
Some medieval Muslims took a keen interest in the study of astrology, despite the Islamic prohibitions (The Quran, points to the primary purpose of astrology as a means of providing physical guidance/navigation for an adherent, essentially considering its use in the capacity of horoscopes as forbidden.)partly because they considered the celestial bodies to be essential, partly because the dwellers of desert-regions often travelled at night, and relied upon knowledge of the constellations for guidance in their journeys.Wasim Aktar, ''Contributions of Ancient Arabian and Egyptian Scientists on Astronomy''Public Science & Reference, retrieved 19 August 2011. After the advent of Islam, the Muslims needed to determine the time of the prayers, the direction of the Kaaba, and the correct orientation of the mosque, all of which helped give a religious impetus to the study of astronomy and contributed towards the belief that the heavenly bodies were influential upon terrestrial affairs as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centiloquy
The ''Centiloquium'' (= "one hundred sayings"), also called ''Ptolemy's Centiloquium'', is a collection of one hundred aphorisms about astrology and astrological rules. It is first recorded at the start of the tenth century CE, when a commentary was written on it by the Egyptian mathematician Ahmad ibn Yusuf al-Misri (later sometimes confounded with his namesake Ali ibn Ridwan ibn Ali ibn Ja'far al-Misri, or in Latin "Haly ibn Rodoan", who lived a century later and wrote a commentary on Ptolemy's ''Tetrabiblios''). Influence and authorship The ''Centiloquium'' opens with a dedication to Syrus, like the classical astronomer Ptolemy's astrological treatise the ''Tetrabiblos'' ("Four books"). Ptolemy was indeed accepted as its author by medieval Arabic, Hebrew and Latin scholars, and the book was widely taken up and quoted. In Arabic it was known as the ''Kitab al-Tamara'' ("Book of the Fruit"), the name supposedly a translation of the Greek καρπος meaning "fruit", the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert W
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of '' Hruod'' ( non, Hróðr) "fame, glory, honour, praise, renown" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin. It is also in use as a surname. Another commonly used form of the name is Rupert. After becoming widely used in Continental Europe it entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta. The Italian, Portuguese, and Spanish form is Roberto. Robert is also a common name in many Germanic languages, including English, German, Dutch, Norwegian, Swedish, Scots, Danish, and Icelandic. It can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambrose Bierce
Ambrose Gwinnett Bierce (June 24, 1842 – ) was an American short story writer, journalist, poet, and American Civil War veteran. His book ''The Devil's Dictionary'' was named as one of "The 100 Greatest Masterpieces of American Literature" by the American Revolution Bicentennial Administration. His story "An Occurrence at Owl Creek Bridge" has been described as "one of the most famous and frequently anthologized stories in American literature", and his book '' Tales of Soldiers and Civilians'' (also published as ''In the Midst of Life'') was named by the Grolier Club as one of the 100 most influential American books printed before 1900. A prolific and versatile writer, Bierce was regarded as one of the most influential journalists in the United States, and as a pioneering writer of realist fiction. For his horror writing, Michael Dirda ranked him alongside Edgar Allan Poe and H. P. Lovecraft. S. T. Joshi speculates that he may well be the greatest satirist America has ever pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibn Butlan
Abū 'l-Ḥasan al-Muḫtār Yuwānnīs ibn al-Ḥasan ibn ʿAbdūn ibn Saʿdūn ibn Buṭlān ( ar, أبو الحسن المختار إيوانيس بن الحسن بن عبدون بن سعدون بن بطلان; ; ca. first quarter of the 11th century AD – 8 Šauwāl 458 AH/2 September 1066 AD) known as Ibn Buṭlān ( ar, ابن بطلان; ) was a physician and Arab Christian theologian from Baghdad during the Abbasid era. He left his hometown for travels throughout the Iraq, Syria, Egypt, and Asia Minor during which he practiced medicine, studied, wrote, and engaged in intellectual debates most famously the Battle of the Physicians with Ibn Riḍwān. He was a first-hand witness of the Schism of 1054 in Constantinople, contributing a work to the discussions surrounding it for Patriarch Michael I Cerularius. After his time in Constantinople he remained in the Byzantine Empire, becoming a monk in Antioch during the end of the Macedonian Renaissance. He is most reno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inductive Reasoning
Inductive reasoning is a method of reasoning in which a general principle is derived from a body of observations. It consists of making broad generalizations based on specific observations. Inductive reasoning is distinct from ''deductive'' reasoning. If the premises are correct, the conclusion of a deductive argument is ''certain''; in contrast, the truth of the conclusion of an inductive argument is '' probable'', based upon the evidence given. Types The types of inductive reasoning include generalization, prediction, statistical syllogism, argument from analogy, and causal inference. Inductive generalization A generalization (more accurately, an ''inductive generalization'') proceeds from a premise about a sample to a conclusion about the population. The observation obtained from this sample is projected onto the broader population. : The proportion Q of the sample has attribute A. : Therefore, the proportion Q of the population has attribute A. For example, say there ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alistair Cameron Crombie
Alistair Cameron Crombie (4 November 1915 – 9 February 1996) was an Australian historian of science who began his career as a zoologist. He was noted for his contributions to research on competition between species before turning to history. Early life and education Born in Brisbane, Australia, Crombie was educated at the Church of England Grammar School and Geelong Grammar School. He then undertook tertiary study in Science at the University of Melbourne, where he was a resident from 1935 at Trinity College. During his studies in Melbourne, he won the First Brunning Prize in Botany Part I (1935) and the Exhibition in Zoology Part III (1937). , issue=Crombie undertook postgraduate study at Jesus College, the University of Cambridge, receiving his doctorate in 1942 in the area of population dynamics. He married Nancy Hey in 1943 and had five children. He undertook research at the Cambridge Zoological Laboratory for the British Ministry of Agriculture and Fisheries from 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrabiblos
''Tetrabiblos'' () 'four books', also known in Greek as ''Apotelesmatiká'' () "Effects", and in Latin as ''Quadripartitum'' "Four Parts", is a text on the philosophy and practice of astrology, written in the 2nd century AD by the Alexandrian scholar Claudius Ptolemy ( AD 90– AD 168). Ptolemy's ''Almagest'' was an authoritative text on astronomy for more than a thousand years, and the ''Tetrabiblos'', its companion volume, was equally influential in astrology, the study of the effects of astronomical cycles on earthly matters. But whilst the ''Almagest'' as an astronomical authority was superseded by acceptance of the heliocentric model of the Solar System, the ''Tetrabiblos'' remains an important theoretical work for astrology. Besides outlining the techniques of astrological practice, Ptolemy's philosophical defense of the subject as a natural, beneficial study helped secure theological tolerance towards astrology in Western Europe during the Medieval era. This allowed Pt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemy
Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importance to later Byzantine, Islamic, and Western European science. The first is the astronomical treatise now known as the '' Almagest'', although it was originally entitled the ''Mathēmatikē Syntaxis'' or ''Mathematical Treatise'', and later known as ''The Greatest Treatise''. The second is the ''Geography'', which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day. This is sometimes known as the ''Apotelesmatika'' (lit. "On the Effects") but more commonly known as the '' Tetrábiblos'', from the Koine Greek meaning "Four Books", or by its Latin equivalent ''Quadrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recorded History
Recorded history or written history describes the historical events that have been recorded in a written form or other documented communication which are subsequently evaluated by historians using the historical method. For broader world history, recorded history begins with the accounts of the ancient world around the 4th millennium BC, and it coincides with the invention of writing. For some geographic regions or cultures, written history is limited to a relatively recent period in human history because of the limited use of written records. Moreover, human cultures do not always record all of the information which is considered relevant by later historians, such as the full impact of natural disasters or the names of individuals. Recorded history for particular types of information is therefore limited based on the types of records kept. Because of this, recorded history in different contexts may refer to different periods of time depending on the topic. The interpretation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supernova
A supernova is a powerful and luminous explosion of a star. It has the plural form supernovae or supernovas, and is abbreviated SN or SNe. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the ''progenitor'', either collapses to a neutron star or black hole, or is completely destroyed. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months. Supernovae are more energetic than novae. In Latin language, Latin, ''nova'' means "new", referring astronomically to what appears to be a temporary new bright star. Adding the prefix "super-" distinguishes supernovae from ordinary novae, which are far less luminous. The word ''supernova'' was coined by Walter Baade and Fritz Zwicky in 1929. The last supernova to be directly observed in the Milky Way was Kepler's Supernova in 160 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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