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8th Century In Science
This is a summary of the 8th century in science and technology. Astronomy * Mashallah ibn Athari participated in the founding of Baghdad for Caliph Al-Mansur by working with a group of astrologers led by Naubakht the Persian to pick an electional horoscope for the founding of the city.Benjamin N. Dykes ranslator ''Works of Sahl and Masha'allah''. Cazimi Press, 2008.. * Mashallah ibn Athari wrote over twenty works on predominantly astrology, which became authoritative in later centuries at first in the Middle East, and then in the West when horoscopic astrology was transmitted back to Europe beginning in the 12th century. Mathematics * The use of zero, essential in practical mathematics, is now known in Baghdad and is adopted by others. Predicted and scheduled events * List of 8th-century lunar eclipses * List of solar eclipses in the 8th century See also * Science in the medieval Islamic world Science in the medieval Islamic world was the science developed and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th Century
The 8th century is the period from 701 ( DCCI) through 800 ( DCCC) in accordance with the Julian Calendar. The coast of North Africa and the Iberian Peninsula quickly came under Islamic Arab domination. The westward expansion of the Umayyad Empire was famously halted at the siege of Constantinople by the Byzantine Empire and the Battle of Tours by the Franks. The tide of Arab conquest came to an end in the middle of the 8th century.Roberts, J., '' History of the World'', Penguin, 1994. In Europe, late in the century, the Vikings, seafaring peoples from Scandinavia, begin raiding the coasts of Europe and the Mediterranean, and go on to found several important kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under Chinese Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the poem Beowulf is composed. * Classical Maya civilization begins to decline. * The Kombumerri burial grounds are fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horoscope
A horoscope (or other commonly used names for the horoscope in English include natal chart, astrological chart, astro-chart, celestial map, sky-map, star-chart, cosmogram, vitasphere, radical chart, radix, chart wheel or simply chart) is an astrological chart or diagram representing the positions of the Sun, Moon, planets, astrological aspects and sensitive angles at the time of an event, such as the moment of a person's birth. The word horoscope is derived from the Greek words ''ōra'' and ''scopos'' meaning "time" and "observer" (''horoskopos'', pl. ''horoskopoi'', or "marker(s) of the hour"). It is used as a method of divination regarding events relating to the point in time it represents, and it forms the basis of the horoscopic traditions of astrology. Horoscope columns are often featured in print and online newspapers. In common usage, horoscope often refers to an astrologer's interpretation, usually based on a system of solar Sun sign astrology; based strictly on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science In The Medieval Islamic World
Science in the medieval Islamic world was the science developed and practised during the Islamic Golden Age under the Umayyads of Córdoba, the Abbadids of Seville, the Samanids, the Ziyarids, the Buyids in Persia, the Abbasid Caliphate and beyond, spanning the period roughly between 786 and 1258. Islamic scientific achievements encompassed a wide range of subject areas, especially astronomy, mathematics, and medicine. Other subjects of scientific inquiry included alchemy and chemistry, botany and agronomy, geography and cartography, ophthalmology, pharmacology, physics, and zoology. Medieval Islamic science had practical purposes as well as the goal of understanding. For example, astronomy was useful for determining the '' Qibla'', the direction in which to pray, botany had practical application in agriculture, as in the works of Ibn Bassal and Ibn al-'Awwam, and geography enabled Abu Zayd al-Balkhi to make accurate maps. Islamic mathematicians such as Al-Khwarizmi, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Solar Eclipses In The 8th Century
This is a list of selected solar eclipse A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth, totally or partially. Such an alignment occurs during an eclipse season, approximately every six month ...s in the Middle Ages, in particular those with historical significance. Historically significant solar eclipses Statistics Longest total eclipses Below is a list of all total eclipses longer than 7 minutes that occurred between the 5th and 15th centuries. Solar eclipses by century References {{DEFAULTSORT:Solar eclipses in the Middle Ages +05 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of 8th-century Lunar Eclipses
This article gives statistics for lunar eclipses grouped by century. Detailed information about tetrads, timing, and other facts can be found at the linked references. General statistics In the 5,000 years from 2000 BC to 3000 AD, there will be a total of 12,064 lunar eclipses: *4,378 penumbral eclipses, of which 4,237 were partial and 141 were total *4,207 partial eclipses *3,479 total eclipses, of which 2,074 were central and 1,405 were non-central The longest partial lunar eclipse during this period will occur on 8 February 2669, lasting 3:30:02. The longest total eclipse occurred on 31 May 318, with a duration of 01:46:36. Lunar eclipses by century See also *Historically significant lunar eclipses References {{Lunar eclipses Century A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word ''century'' comes from the Latin ''centum'', meaning ''one hundred''. ''Century'' is sometimes abbreviated as c. A centenn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
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 poin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero (number)
0 (zero) is a number representing an empty quantity. In place-value notation such as the Hindu–Arabic numeral system, 0 also serves as a placeholder numerical digit, which works by multiplying digits to the left of 0 by the radix, usually by 10. As a number, 0 fulfills a central role in mathematics as the additive identity of the integers, real numbers, and other algebraic structures. Common names for the number 0 in English are ''zero'', ''nought'', ''naught'' (), ''nil''. In contexts where at least one adjacent digit distinguishes it from the letter O, the number is sometimes pronounced as ''oh'' or ''o'' (). Informal or slang terms for 0 include ''zilch'' and ''zip''. Historically, ''ought'', ''aught'' (), and ''cipher'', have also been used. Etymology The word ''zero'' came into the English language via French from the Italian , a contraction of the Venetian form of Italian via ''ṣafira'' or ''ṣifr''. In pre-Islamic time the word (Arabic ) had the meani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horoscopic Astrology
Horoscopic astrology is a form of astrology that uses a horoscope, a visual representation of the heavens, for a specific moment in time in order to interpret the inherent meaning underlying the alignment of the planets at that moment. The idea is that the placement of the planets at any given moment in time reflects the nature of that moment and especially anything that is born then, and this can be analyzed using the chart and a variety of rules for interpreting the "language" or symbols therein. One of the defining characteristics of this form of astrology that makes it distinct from other traditions is the computation of the degree of the Eastern horizon rising against the backdrop of the ecliptic at the specific moment under examination, known as the ascendant. As a general rule, any system of astrology that does not use the ascendant does not fall under the category of horoscopic astrology, although there are some exceptions. Modern scientific perspectives on the nature of c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science
Science is a systematic endeavor that Scientific method, builds and organizes knowledge in the form of Testability, testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 Common Era, BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the Universe, physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of History of science in classical antiquity, Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naubakht
Nobakht Ahvazi ( fa, نوبخت اهوازى), also spelled Naubakht Ahvaz and Naubakht, along with his sons were astrologers from Ahvaz (in the present-day Khuzestan Province, Iran) who lived in the 8th and 9th centuries AD. Nobakht was particularly famous for having led a group of astrologers who picked an auspicious electional chart for the founding of Baghdad. His family also helped design the city. Originally Zoroastrians,Islam's Contribution to Science By Husain Muzzafar, S. Muzaffar Husain, pg. 31 Nobakht and his sons converted to Islam and were employed as Pahlavi translators of the Abbasid court. Life as a court astrologer Nawbakht was the most prominent among 'Abbasid caliph al-Mansur's court astrologers. He rose to this position after having successfully predicted al-Mansur's rise to power as a caliph.Labarta, Ana, “Nawbakht”, in: ''Encyclopaedia of Islam, THREE'', Edited by: Kate Fleet, Gudrun Krämer, Denis Matringe, John Nawas, Everett Rowson. Consult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Mansur
Abū Jaʿfar ʿAbd Allāh ibn Muḥammad al-Manṣūr (; ar, أبو جعفر عبد الله بن محمد المنصور; 95 AH – 158 AH/714 CE – 6 October 775 CE) usually known simply as by his laqab Al-Manṣūr (المنصور) was the second Abbasid caliph, reigning from 136 AH to 158 AH (754 CE – 775 CE) succeeding his brother al-Saffah (). He is known for founding the 'Round City' of Madinat al-Salam, which was to become the core of imperial Baghdad. Modern historians regard Al-Mansur as the real founder of the Abbasid Caliphate, one of the largest polities in world history, for his role in stabilizing and institutionalizing the dynasty.''The Cambridge History of Islam, volume 1: The Formation of the Islamic World'', ed. Chase F Robinson, March 2011 Background and early life According to Al-Suyuti's '' History of the Caliphs'', Al-Mansur lived 95 AH – 158 AH (714 CE – 6 October 775 CE). Al-Mansur was born at the home of the Abbasid family in Humeima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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