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Jewish Astrology
Astrology in Jewish antiquity ( = ''mazalot'') is the belief that celestial bodies can influence the affairs of individuals and of entire nations upon the earth. This involves the study of the celestial bodies' respective energies based on recurring patterns that change by the hour, by the week, month, year or by several years (time categories). In each of these time categories one of the seven planetary spheres (Sun, Venus, Mercury, Moon, Saturn, Jupiter, or Mars), along with the month's current Zodiac constellation, come into play and influence the sublunary world. At times, it involves a complex combination of several of these factors working together. In Judaism this belief is expressed by the biblical affirmation: "''Knowest thou the ordinances of heaven? Canst thou set the dominion thereof in earth?'' (Job 38:33)," from which statement the Sages have inferred, "There is no single herb below without its corresponding star above, that beats upon it and commands it to grow." C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never far from the Sun, either as morning star or evening star. Aside from the Sun and Moon, Venus is the brightest natural object in Earth's sky, capable of casting visible shadows on Earth at dark conditions and being visible to the naked eye in broad daylight. Venus is the second largest terrestrial object of the Solar System. It has a surface gravity slightly lower than on Earth and has a very weak induced magnetosphere. The atmosphere of Venus, mainly consists of carbon dioxide, and is the densest and hottest of the four terrestrial planets at the surface. With an atmospheric pressure at the planet's surface of about 92 times the sea level pressure of Earth and a mean temperature of , the carbon dioxide gas at Venus's surface is in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abba Arikha
Abba Arikha (175–247 CE; Jewish Babylonian Aramaic: ; born: ''Rav Abba bar Aybo'', ), commonly known as Rav (), was a Jewish amora of the 3rd century. He was born and lived in Kafri, Asoristan, in the Sasanian Empire. Abba Arikha established at Sura the systematic study of the rabbinic traditions, which, using the Mishnah as text, led to the compilation of the Talmud. With him began the long period of ascendancy of the great Talmudic Academies in Babylonia around the year 220. In the Talmud, he is frequently associated with Samuel of Nehardea, with whom he debated many issues. Biography His surname, Arikha (English: ''the Tall''), he owed to his height, which exceeded that of his contemporaries. Others, reading Arekha, consider it an honorary title, "Lecturer". In the traditional literature he is referred to almost exclusively as Rav, "the Master", (both his contemporaries and posterity recognizing in him a master), just as his teacher, Judah HaNasi, was known simply as ''R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasi (Hebrew Title)
( ''nāśīʾ'') is a Hebrew title meaning "prince" in Biblical Hebrew, "Prince f the Sanhedrin">Sanhedrin.html" ;"title="f the Sanhedrin">f the Sanhedrin in Mishnaic Hebrew, or "President (government title), president" in Hebrew language#Modern Hebrew, Modern Hebrew. Usage Genesis and ancient Israel The noun ''nasi'' (including its grammatical variations), occurs 132 times in the Masoretic Text of the Hebrew Bible, and in English is usually translated "prince," occasionally "captain." The first use is for the twelve "princes" who will descend from Ishmael, in the Book of Genesis , and the second use, in , is the Hethites recognising Abraham as "a godly prince" (' ). In the Book of Leviticus (), in the rites of sacrifices for leaders who err, there is the special offering made by a "nasi". In the Book of Numbers (), the leader of each tribe is referred to as a ''nasi'', and each one brings a gift to the Tabernacle. In , occurring 38 years later in the Biblical story, the ' ... [...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] |
Solomon Ibn Gabirol
Solomon ibn Gabirol or Solomon ben Judah ( he, ר׳ שְׁלֹמֹה בֶּן יְהוּדָה אִבְּן גָּבִּירוֹל, Shlomo Ben Yehuda ibn Gabirol, ; ar, أبو أيوب سليمان بن يحيى بن جبيرول, ’Abū ’Ayyūb Sulaymān bin Yaḥyá bin Jabīrūl, ) was an 11th-century Andalusian poet and Jewish philosopher in the Neo-Platonic tradition. He published over a hundred poems, as well as works of biblical exegesis, philosophy, ethics and satire. One source credits ibn Gabirol with creating a golem, possibly female, for household chores. In the 19th century it was discovered that medieval translators had Latinized Gabirol's name to Avicebron or Avencebrol and had translated his work on Jewish Neo-Platonic philosophy into a Latin form that had in the intervening centuries been highly regarded as a work of Islamic or Christian scholarship. As such, ibn Gabirol is well known in the history of philosophy for the doctrine that all things, including s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sefer Yetzirah
''Sefer Yetzirah'' ( ''Sēp̄er Yəṣīrā'', ''Book of Formation'', or ''Book of Creation'') is the title of a book on Jewish mysticism, although some early commentators treated it as a treatise on mathematical and linguistic theory as opposed to Kabbalah. ''Yetzirah'' is more literally translated as "Formation"; the word ''Briah'' is used for "Creation". The book is traditionally ascribed to the patriarch Abraham, although others attribute its writing to Rabbi Akiva. Modern scholars have not reached consensus on the question of its origins. According to Rabbi Saadia Gaon, the objective of the book's author was to convey in writing how the things of our universe came into existence. Conversely, Judah Halevi asserts that the main objective of the book, with its various examples, is to give to man the means by which he is able to understand the unity and omnipotence of God, which are multiform on one side and, yet, uniform on the other. The famous opening words of the book are as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saadia Gaon
Saʻadiah ben Yosef Gaon ( ar, سعيد بن يوسف الفيومي ''Saʻīd bin Yūsuf al-Fayyūmi''; he, סַעֲדְיָה בֶּן יוֹסֵף אַלְפַיּוּמִי גָּאוֹן ''Saʿăḏyāh ben Yōsēf al-Fayyūmī Gāʾōn''; alternative English names: Rabbeinu Sa'adiah Gaon ("our Rabbi heSaadia Gaon"), often abbreviated RSG (RaSaG); Saadia b. Joseph; Saadia ben Joseph; Saadia ben Joseph of Faym; or Saadia ben Joseph Al-Fayyumi; 882/892 – 942) was a prominent rabbi, gaon, Jewish philosopher, and exegete who was active in the Abbasid Caliphate. Saadia is the first important rabbinic figure to write extensively in Judeo-Arabic. Known for his works on Hebrew linguistics, Halakha, and Jewish philosophy, he was a practitioner of the philosophical school known as the "Jewish Kalam". In this capacity, his philosophical work '' The Book of Beliefs and Opinions'' represents the first systematic attempt to integrate Jewish theology with components of ancient Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Eastern Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shabbat (Talmud)
:''This is about part of the Talmud; for the Jewish day of rest, see Shabbat.'' Shabbat ( he, שַׁבָּת, lit. "Sabbath") is the first tractate of ''Seder Moed'' ("Order of Appointed Times") of the Mishnah and of the Talmud. The tractate deals with the laws and practices regarding observing the Jewish Sabbath (''Shabbat'' in Hebrew). The tractate focuses primarily on the categories and types of activities prohibited on the Sabbath according to interpretations of many verses in the Torah, notably and . The Mishnah and Talmud go to great lengths to carefully define and precisely determine the observance of the Sabbath. The tractate is thus one of the longest in terms of chapters in the Mishnah, and folio pages in the Talmud. It comprises 24 chapters and has a Gemara – rabbinical analysis of and commentary on the Mishnah – in both the Babylonian Talmud and all but the last four chapters of the Jerusalem Talmud. There is a Tosefta of 18 chapters on this tractate. As its nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precession Of The Equinoxes
In astronomy, axial precession is a gravity-induced, slow, and continuous change in the orientation of an astronomical body's rotational axis. In the absence of precession, the astronomical body's orbit would show axial parallelism. In particular, axial precession can refer to the gradual shift in the orientation of Earth's axis of rotation in a cycle of approximately 26,000 years.Hohenkerk, C.Y., Yallop, B.D., Smith, C.A., & Sinclair, A.T. "Celestial Reference Systems" in Seidelmann, P.K. (ed.) ''Explanatory Supplement to the Astronomical Almanac''. Sausalito: University Science Books. p. 99. This is similar to the precession of a spinning top, with the axis tracing out a pair of cones joined at their apices. The term "precession" typically refers only to this largest part of the motion; other changes in the alignment of Earth's axis—nutation and polar motion—are much smaller in magnitude. Earth's precession was historically called the precession of the equinoxes, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Bar Abba
Samuel of Nehardea or Samuel bar Abba, often simply called Samuel (Hebrew: שמואל) and occasionally Mar Samuel, was a Jewish Amora of the first generation; son of Abba bar Abba and head of the Yeshiva at Nehardea, Babylonia. He was a teacher of halakha, judge, physician, and astronomer. He was born about 165 CE at Nehardea, and died there in 254 CE. In the Talmud, Samuel is frequently associated with Abba Arikha ("Rav"), with whom he debated on many issues. Biography Birth As in the case of many other great men, a number of legendary stories are connected with his birth. His father, Abba bar Abba, subsequently known also by the Aramaic language designation Abuh di-Shemu'el ("father of Samuel"), was a silk-merchant. R. Yehuda ben Betheira ordered a silken garment from him, but refused to take it after Abba had procured it, and when the latter asked him the reason of his refusal, R. Yehuda answered, "The commission was only a spoken word, and was not sufficient to make the tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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