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Centiloquium
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 ... [...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 But whilst the ''Almagest'' as an astronomical authority was superseded by acceptance of the heliocentric model of the Solar System, the ''Tetrabiblos'' remains an important theoretical work for astrology.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 ''Quadripart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abraham Bar Hiyya
Abraham bar Ḥiyya ha-Nasi (; – 1136 or 1145), also known as Abraham Savasorda, Abraham Albargeloni, and Abraham Judaeus, was a Catalan Jewish mathematician, astronomer and philosopher who resided in Barcelona. Bar Ḥiyya was active in translating the works of Islamic science into Latin, and was likely the earliest to introduce Arabic algebra into Christian Europe. He also wrote several original works on mathematics, astronomy, Jewish philosophy, chronology, and land surveying. His most influential work is his ''Ḥibbur ha-Meshiḥah ve-ha-Tishboret'', translated in 1145 into Latin as ''Liber embadorum''. A Hebrew treatise on practical geometry and Islamic algebra, the book contains the first known complete solution of the quadratic equation x^2 - ax + b = c, and influenced the work of Leonardo Fibonacci. Biography Abraham bar Ḥiyya was the great-grandson of the Hezekiah Gaon. Bar Ḥiyya occupied a high position in the royal court, serving as minister of police, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahmad Ibn Yusuf
Abu Ja'far Ahmad ibn Yusuf ibn Ibrahim ibn Tammam al-Siddiq Al-Baghdadi ( ar, أبو جعفر أحمد بن يوسف بن ابراهيم بن تمام الصديق البغدادي; 835–912), known in the West by his Latinized name Hametus, was a Muslim Arab mathematician, like his father Yusuf ibn Ibrahim ( ar, يوسف بن ابراهيم الصدَيق البغدادي ). Life Ahmad ibn Yusuf was born in Baghdad and moved with his father to Damascus in 839. He later moved to Cairo, but the exact date is unknown: since he was also known as ''al-Misri'', which means ''the Egyptian'', this probably happened at an early age. Eventually, he also died in Cairo. He probably grew up in a strongly intellectual environment: his father worked on Mathematics, Astronomy and Medicine, produced astronomical tables and was a member of a group of scholars. He achieved an important role in Egypt, which was caused by Egypt's relative independence from the Abbasid Caliph. Work In some of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahmad Ibn Yusuf Al-Misri
Abu Ja'far Ahmad ibn Yusuf ibn Ibrahim ibn Tammam al-Siddiq Al-Baghdadi ( ar, أبو جعفر أحمد بن يوسف بن ابراهيم بن تمام الصديق البغدادي; 835–912), known in the West by his Latinized name Hametus, was a Muslim Arab mathematician, like his father Yusuf ibn Ibrahim ( ar, يوسف بن ابراهيم الصدَيق البغدادي ). Life Ahmad ibn Yusuf was born in Baghdad and moved with his father to Damascus in 839. He later moved to Cairo, but the exact date is unknown: since he was also known as ''al-Misri'', which means ''the Egyptian'', this probably happened at an early age. Eventually, he also died in Cairo. He probably grew up in a strongly intellectual environment: his father worked on Mathematics, Astronomy and Medicine, produced astronomical tables and was a member of a group of scholars. He achieved an important role in Egypt, which was caused by Egypt's relative independence from the Abbasid Caliph. Work In some of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalonymus Ben Kalonymus
Kalonymus ben Kalonymus ben Meir (Hebrew language, Hebrew: קלונימוס בן קלונימוס), also romanized as Qalonymos ben Qalonymos or Calonym ben Calonym, also known as Maestro Calo (Arles, 1286 – died after 1328) was a Jewish philosopher and translator from Hachmei Provence (now Provence, France). He studied philosophy and rabbinical literature at Salon-de-Provence under the direction of Abba Mari ben Eligdor and Moses ben Solomon of Beaucaire. He also studied medieval medicine of Western Europe, medicine, although he never seemed to have practiced it. He was from a prominent and distinguished Provençal Jewish family. The father of Kalonymus and Kalonymus themselves each bore the title "Nasi (Hebrew title), Nasi" (prince). At Rome About 1314, Kalonymus settled at Avignon, where he later became associated with Robert, King of Naples, who sent him, provided with letters of recommendation, on a scientific mission to Rome. Kalonymus' learning and character gained f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphorism
An aphorism (from Greek ἀφορισμός: ''aphorismos'', denoting 'delimitation', 'distinction', and 'definition') is a concise, terse, laconic, or memorable expression of a general truth or principle. Aphorisms are often handed down by tradition from generation to generation. The concept is generally distinct from those of an adage, brocard, chiasmus, epigram, maxim ( legal or philosophical), principle, proverb, and saying; although some of these concepts may be construed as types of aphorism. Often, aphorisms are distinguished from other short sayings by the need for interpretation to make sense of them. In ''A Theory of the Aphorism'', Andrew Hui defined an aphorism as "a short saying that requires interpretation." History The word was first used in the ''Aphorisms'' of Hippocrates, a long series of propositions concerning the symptoms and diagnosis of disease and the art of healing and medicine. The often cited first sentence of this work is: "" - "life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Coley
Henry Coley (18 October 1633 – 30 April 1704) was an astrologer and mathematician, and amanuensis of William Lilly. Early life and career Coley was born, as shown in an inscription round a portrait of him by Robert White, found in some of his works, on 18 October 1633 in Oxford. His father was a joiner. In 1648 he became a clerk in the Parliamentary army; in 1654 he moved to London and worked as a ladies' tailor in Gray's Inn Lane. In 1656 he married and they had one child; in 1660, after his wife's death, he married again; their son born in 1661 died soon after birth. He taught himself mathematics, astrology, Latin and French. From 1663 he lived in Baldwins Gardens, where he taught astrology and mathematics, and received clients. By the 1670s he had a flourishing practice. In 1669 Coley published ''Clavis Astrologiæ Elimata; or a Key to the whole Art of Astrology, new filed and polished''. It was well received. A second and enlarged edition was published in 1676; it was de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bethem
Abū ʿAbd Allāh Muḥammad ibn Jābir ibn Sinān al-Raqqī al-Ḥarrānī aṣ-Ṣābiʾ al-Battānī ( ar, محمد بن جابر بن سنان البتاني) ( Latinized as Albategnius, Albategni or Albatenius) (c. 858 – 929) was an astronomer and mathematician from Harran. He introduced a number of trigonometric relations, and his ''Kitāb az-Zīj'' was frequently quoted by many medieval astronomers, including Copernicus. Often called the "Ptolemy of the Arabs", al-Battani is perhaps one of the greatest and best known astronomer of the medieval Islamic world. Life Little of al-Battānī's life is known other than his birthplace in Harran near Urfa, in Upper Mesopotamia, (today in Turkey) and his father's fame as a maker of scientific instruments. Jabir ibn Sinan al-Harrani was likely this famous instrument maker, although this is not something that has been proven. His epithet ''aṣ-Ṣabi’'' suggests that his family belonged to the Sabian religion of Harran, an obscur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albategnius
Abū ʿAbd Allāh Muḥammad ibn Jābir ibn Sinān al-Raqqī al-Ḥarrānī aṣ-Ṣābiʾ al-Battānī ( ar, محمد بن جابر بن سنان البتاني) ( Latinized as Albategnius, Albategni or Albatenius) (c. 858 – 929) was an astronomer and mathematician from Harran. He introduced a number of trigonometric relations, and his ''Kitāb az-Zīj'' was frequently quoted by many medieval astronomers, including Copernicus. Often called the "Ptolemy of the Arabs", al-Battani is perhaps one of the greatest and best known astronomer of the medieval Islamic world. Life Little of al-Battānī's life is known other than his birthplace in Harran near Urfa, in Upper Mesopotamia, (today in Turkey) and his father's fame as a maker of scientific instruments. Jabir ibn Sinan al-Harrani was likely this famous instrument maker, although this is not something that has been proven. His epithet ''aṣ-Ṣabi’'' suggests that his family belonged to the Sabian religion of Harran, an obscur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muhammad Ibn Jabir Al-Battani
Abū ʿAbd Allāh Muḥammad ibn Jābir ibn Sinān al-Raqqī al-Ḥarrānī aṣ-Ṣābiʾ al-Battānī ( ar, محمد بن جابر بن سنان البتاني) ( Latinized as Albategnius, Albategni or Albatenius) (c. 858 – 929) was an astronomer and mathematician from Harran. He introduced a number of trigonometric relations, and his ''Kitāb az-Zīj'' was frequently quoted by many medieval astronomers, including Copernicus. Often called the "Ptolemy of the Arabs", al-Battani is perhaps one of the greatest and best known astronomer of the medieval Islamic world. Life Little of al-Battānī's life is known other than his birthplace in Harran near Urfa, in Upper Mesopotamia, (today in Turkey) and his father's fame as a maker of scientific instruments. Jabir ibn Sinan al-Harrani was likely this famous instrument maker, although this is not something that has been proven. His epithet ''aṣ-Ṣabi’'' suggests that his family belonged to the Sabian religion of Harran, an obscur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
