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         Albategnius:     more detail
  1. Lq20 Quadrangle: Apianus, Abulfeda, Pontanus, Santbech, Hipparchus, Piccolomini, Albategnius, Parrot, Fracastorius, Theophilus, Sacrobosco

61. AstronoMike - Observer - La Lune - Premier Et Dernier Quartiers
albategnius; Klein; Vogel; Saunder;Müller; albategnius Au sud d'Hipparque, albategnius (6) paraît nettement plus jeune.
http://www.astronomike.net/systeme_solaire/lune/observer/soir_07.php

62. Geschichte Der Astrologie
Translate this page albategnius. Muhammed 1473). Dadurch wurde der abendländischen Weltdie Tagbogen-Methode des albategnius bekannt. (Venedig 1512).
http://www.hermes-astrologie.com/history5.htm
HERMES-Seite Neu Daten Artikel ... Links
Geschichte (Korsch)
Krieg im Kosovo
Astrologen
Brandler-Pracht
Grimm
Kniepf
Vehlow
Wulff
Kolumbus'
Abfahrt Finsternisse und Aktien Mit den Sternen reich werden Das neue Buch zur Finanz- und Börsenastrologie Teil 1 : Babylon, Ägypten, Griechenland Teil 2 : Griechenland (Fortsetzung) Teil 3 : Rom Teil 4 : Rom (Fortsetzung) Teil 5 : Araber Quelle: Zenit, 6. Jahrgang 1935, Heft 5
Grundriß der Geschichte der Astrologie (Teil 3)
Von Dr. Hubert KORSCH
Araber
Eine neue Blüte gewann die Astrologie durch die kunstsinnige Förderung der arabischen Kalifen. Von der astrologischen Literatur der Araber ist sehr viel erhalten geblieben, die meisten Werke sind ins Lateinische übertragen worden. Die arabische Astrologie hat die ptolemäischen und aristotelischen Fundamente mit minutiöser Genauigkeit ausgebaut und sich insbesondere mit der Horoskoptechnik und den Direktionslehren beschäftigt. Auch die Lehre von den Planetenkonjunktionen wurde durch die arabischen Astrologen besonders ausgebildet, vor allem die Konjunktion der drei oberen Planeten Mars, Jupiter und Saturn in demselben Tierkreiszeichen, die Unheil, Krieg, Hungersnot, Aufruhr, religiöse Umwälzung herbeiführen sollte. Mohammeds Geburt hängt mit einer solchen Konjunktion im Zeichen Skorpion zusammen, ebenso der schwarze Tod (1348) und Luthers Auf­treten. Schon damals entstand eine Geschichtskonstruktion, die aus rein natürlichen Ursachen den periodischen Verlauf alles Weltgeschehens mit erstaunlicher Kühnheit erschloss und an dem bisherigen Gang der Geschichte aufwies (Boll a.a.0. S.34). Die Araber haben die Astrologie auf dem Gebiete der Medizin wieder zur Geltung gebracht.

63. Measuring Size
A. albategnius, the large crater in the center of the image. B. Crater insidealbategnius at 3 o'clock. C. Crater inside albategnius at 6 o'clock.
http://www.gunn.palo-alto.ca.us/~cbakken/p1A/astron/measuringsize.html
Measuring Size
Table of Contents Constants Sheet JUPITER CRASH COMPARING LUNAR CRATER HEIGHTS Answer Sheet ... MEASURING SIZE WITH IMAGES Discussion MEASURING SIZE WITH IMAGES Answer Sheet MEASURING THE SIZE OF MOON FEATURES Answer Sheet ... PLANETS AROUND A PULSAR Appendix A - Deriving the Mass Equation Appendix B - Derivation of Small Angle Formula JUPITER CRASH UNIT the image Fireball . This is not the same as the image shown in the picture above. Screen Setup: Fireball Manipulation menu and select Flip and click on Vertical and then OK The fireball was visible for only minutes and was easier to see in the infra red, wavelengths of light longer than we can see with our eyes. This picture was taken with the largest telescope in the world, the 10-meter Keck telescope on Mauna Kea in Hawaii. . How far across the screen does x go? What about y? . What is the total number of pixels on the screen? Your camcorder may have as many as 400,000 pixels. Some telescope cameras have 4 million pixels. Data Tools in the top menu bar and select Zoom Box . The mouse pointer is now a cross hairs. With the mouse cross hairs at the lower left of the fireball, drag up and to the right, making a box around the fireball.

64. WIEM: Albategnius
(encyklopedia.pl)Category World Polska Leksykon Encyklopedia encyklopedia.pl A......
http://wiem.onet.pl/wiem/00556b.html
wiem.onet.pl napisz do nas losuj: has³a multimedia Matematyka, Astronomia, Azja
Albategnius (ok. 854-929) widok strony
znajd¼ podobne
poka¿ powi±zane Patrz: Battani Al zobacz wszystkie serwisy do góry Encyklopedia zosta³a opracowana na podstawie Popularnej Encyklopedii Powszechnej Wydawnictwa Fogra

65. Ch3.2
The arrow points to a 120 km long fracture that cuts the rims of the partly visiblecrater albategnius in the lower left of the photograph and the crater
http://www.hq.nasa.gov/office/pao/History/SP-362/ch3.2.htm
APOLLO OVER THE MOON: A VIEW FROM ORBIT (NASA SP-362) Chapter 3: The Terrae (2/2) [For a high resolution picture- click here AS15-90-12187 (H) AS15-90-12209 (H) [For a high resolution picture- click here FIGURE 44 [above] .-A north looking oblique view of the region surrounding the Apollo 14 landing site (arrow), about 600 km south of the Imbrium basin, which is just beyond the horizon. The fine, hummocky material extending through the center of the frame from the lower edge to the horizon has been mapped as ejecta from the Imbrium basin and designated the Fra Mauro Formation. The formation is most easily distinguished in the western half of Fra Mauro, the large (95 km) crater near the center. In the eastern half of the same crater the formation is either absent or is too thin to be visible. The straight rilles trending toward the lower right corner of the frame may be related to the radial stresses generated by the Imbrium event, but detailed mapping has shown that they are much younger in age.-M.W. AS16-1420 (M) [For a high resolution picture- click here FIGURE 45 [above] .- These terrae of the central highlands are near the Apollo 16 landing site. The landing point is indicated by the arrow just below the lower (northern) edge of the picture. Here the terrae are less rugged and less densely cratered than those on the far side, shown in figure 33. The subdued appearance of these near side terrae is attributed to accumulations of successive blankets of ejecta from impact basins and possibly to the accumulation of volcanic materials in this, the topographically highest region on the Moon's near side. Descartes, for which the landing site was named, is the ancient, highly subdued crater near the center. It is 47 km in diameter and so indistinct in this view that its rim has been outlined by dashes. The unusual Abulfeda crater chain extends for a distance of 225 km across the upper part of the picture.-G.G.S.

66. IBNU ISA AL ASTURLABI
AL BATTANI (albategnius) (240317 H / 845- 929H), Beliau Abu Abdullah Mohd b.Jabir b. Sinan Al Harani. Lahir di Harun (Turki) dan mati di Samarak, Iraq.
http://www.islam.gov.my/informasi/islam/tokoh/tokoh1.html
TOKOH-TOKOH ISLAM DALAM BIDANG AKADEMIK
  • IBNU ISA AL ASTURLABI DAUD AL ANTAKI IBNU BAJAH IBNU YUNUS ... ABU AL SALT

    • IBNU ISA AL ASTURLABI
    (KURUN 3H / 9M) Beliau ialah Ali bin Isa Al Harani, murid kepada Ali b. Khalaf Al Maududi. Bekerja di tempat pengkajian di Baghdad dan Damsyik. Turut serta di dalam berbagai bidang yang diarahkan oleh Al Makmun sekitar tahun 205H / 820M. Beliau telah menyusun buku-buku di dalam Matematik dan astronomi. Diantara buku-buku susunannya ialah: “Risalah Fi llm Al Asturlab", "Al Sohifah Al Afaqiah" dan "Risalah Fi al Amal Bi al Sohifatul Al Qamariah". Beliau ialah Abu Kamil Mohd. b. Syujak, pakar matematik. Beliau telah menyelesaikan beberapa masalah dalam persamaan algebra. Termashur dengan karangan-karanganya seperti “Kitab Al Jabar Wa al Muqabalah", “Al Masahah Wa al Hindasah”, "Al Kifayah", “Miftah al Falah" dan “Kamal Al Jabar wa Tamamuhu wa al Ziadah fi Usuluhi"
    DAUD AL ANTAKI
    (KURUN 10H / 16M) Beliau ialah Daud b. Omar Al Darir. Dilahirkan di Antokiah, Syria dalam keadaan buta dan meninggal di Mekah. Beliau terkenal di Antokiah semenjak kecil di bidang proses tetapi di akhir hidupnya menguasai di bidang kedoktoran dan perubatan. Pernah tinggal di Mesir dan mengepalai doktor-doktor di sana. Beliau terkenal dengan bukunya yang bernama “Tazkirah Daud”. Ianya disusun mengikut index huruf yang terdiri dari permulaan, empat bab dan penutup. Beliau juga mengarang kitab "Al Nuzhah Mubhajah fi Tashiz al Azhan wa Ta’dil al Amzijah". Buku ini beliau ringkaskan dan dinamakan “Tashiz al Azhan".

    67. Moon
    CompositeHipparchusalbategnius-Walter 11 AUGUST 2001 IMAGE 2 - C albategnius.http//earthstar.htmlplanet.com/moon010811hipp2.htm. IMAGE 3 - CS WALTER.
    http://earthstar.htmlplanet.com/moon010811hipparchus.htm
    Free Web site hosting - Freeservers.com
    Composite Hipparchus-Albategnius-Walter 11 AUGUST 2001 RE TOUR MOON ARCHIVE EarthStar Continuum IMAGE 1 - C HIPPARCHUS http://earthstar.htmlplanet.com/moon010811hipp1.htm IMAGE 2 - C ALBATEGNIUS http://earthstar.htmlplanet.com/moon010811hipp2.htm IMAGE 3 - CS WALTER http://earthstar.htmlplanet.com/moon010811hipp3.htm IMAGE 4 - CS WALTER - STOFLER http://earthstar.htmlplanet.com/moon010811hipp4.htm IMAGE COMPOSITE http://earthstar.htmlplanet.com/moon010811hipparchus.htm

    68. Arab Astronomy
    ABU ABDULLAH ALBATTANI (albategnius) (858 - 929 CE). by Dr. A. Zahoor. Al-Battani,known in the West as albategnius, was a famous astronomer and mathematician.
    http://www.al-kawn.com/arab.htm
    ABU ABDULLAH AL-BATTANI (ALBATEGNIUS)
    (858 - 929 C.E.)     by Dr. A. Zahoor Home] Astro-Tourism Events Media ... Astrophotograph y] [ About us Contact us Cool Stuff Star Names ... Astronomy Studies
    E-mail us at: info@al-kawn.com

    69. Glossary
    every full moon. albategnius. House system based on the Sun semidiurnaland seminocturnal arcs' trisection. albedo. planet reflective
    http://www.angelfire.com/sc/jstroberg/glossary.html
    Astrology

    70. Albatagnius
    albategnius, astronom arab., patrz Battani, Al. = Powrót.
    http://www.republika.pl/isb_sai/a/albategnius.html
    ALBATEGNIUS, astronom arab., patrz Battani, Al-.

    71. Images With AP 155 F9 StarFire EDT & Nikon Coolpix 950 Consumer Digicam
    Images with AP 155 f9 StarFire EDT Nikon Coolpix 950 consumer digicam (1) Aristoteles(627-01) (2) albategnius (6-28-01) (3) Aristillus (6-28-01) (4) Rima
    http://www.integram.com/astro/Aristoteles.html
    1) Aristoteles (6-27-01)
    (2) Albategnius (6-28-01)
    (3) Aristillus (6-28-01)
    (4) Rima Hyginus (6-28-01)
    Imaged with AP 155, Nikon CP950, UO 18mm Ortho and Orion 3X Barlow. Single image compressed from 813k to 69k for faster download. Aristoteles (bottom right) is 87 km in diameter and was named after the Greek philosopher living in 384-322 B.C. Eudoxus is 67 km in diameter and was named after the famous Greek astronomer (400-347 B.C.).
    Imaged with AP 155, Nikon CP950, UO 18mm Ortho and Orion 3X Barlow. Single image compressed from 780k to 67k for faster download.
    Imaged with AP 155, Nikon CP950, UO 18mm Ortho and Orion 3X Barlow. Single image compressed from 812k to 43k for faster download.
    Imaged with AP 155, Nikon CP950, UO 18mm Ortho and Orion 3X Barlow. Single image compressed from 940k to 63k for faster download.

    72. History Of Astronomy: Index Of Persons
    AlBanna, al-Marrakushi ibn (1256-1321); al-Battani, Abu Allah Abdallah Mohammadibn Jabir albategnius (ca.868-929); al-Biruni, Abu Raihan (973-1048)
    http://www.astro.uni-bonn.de/~pbrosche/persons/pers-index.html
    History of Astronomy Persons
    History of Astronomy: Index of Persons
    A
  • Aaronson, Marc (1950-1987)
  • Abbadie, Antoine Thompson d' (1810-1897)
  • Abbe, Cleveland (1838-1916)
  • Abbe, Ernst (1840-1905)
  • Abbon de Fleury [Abbo of Fleury; Albo; Albon Floriacensis] (c. 945-1004)
  • Abbot, Charles Greeley (1872-1973)
  • Abbott, Francis (1799-1883)
  • Abbott, Francis (jnr) (1834-1903)
  • Abel, Niels Henrik (1802-1829)
  • Abell, George Ogden (1927 - 1983)
  • Abetti, Antonio (1846-1928)
  • Abetti, Giorgio (1882-1982)
  • Abiosi, Jean-Baptiste (14th-15th c.) Ablufarabius: see al-Farabi, Mohammed (ca. 870-950)
  • Abney, Sir William de Wiveleslie (1843-1920)
  • Abraham bar Hiyya Ha-Nasi [Abraham Ben Chaja [Chija]; Abraham Judaeus] (ca. 1070-1136(?))
  • Abraham Ben Dior [Ben David, Harischon; Josophat Ben Levi] (12th c.) Abraham ben Meir ibn Ezra: see Ezra, Abraham ben Meir ibn (1092-1167)
  • Abraham Zachut (15th c.) Abu Abdallah al-Battani (868-929): see al-Battani
    Abu al-Hasan: see Ali Ibn Rabban al-Tabari (838-870)
    Abu Ali Hasan Ibn al-Haitham (965-1040): see al-Haitham
    Abu al-Nasr al-Farabi (870-950): see al-Farabi
  • Abu Dschaasar Almansur (712-775) Abu Hamid al-Ghazali (1058-1128): see al-Ghazali
    Abu Mashar: see Albumazar (787-885)
    Abu Raihan al-Biruni (973-1048): see al-Biruni
  • Abu'l Fida [Abulfeda], Ismail (1273-1331)

    • 73. History Of Astronomy: Persons (A)
    Short biography, references and links (MacTutor Hist. Math.). alBattani,Abu Allah Abdallah Mohammad ibn Jabir albategnius (c.858-929)
    http://www.astro.uni-bonn.de/~pbrosche/persons/pers_a.html
    History of Astronomy Persons
    History of Astronomy: Persons (A)
    Deutsche Fassung

    74. Steve Massey's Astronomy Page - The Moon
    70.6S, 5.5W. Above albategnius Diameter 136 kms. Image captured with Astrovid2000 and 25cm (10 inch) Meade Newtonian reflector. 11.2S, 4.1E.
    http://members.optushome.com.au/ssmassey/moon.html
    HOME Page 1 - Click Here to visit Page 2 Total Eclipse of The Moon July 16-17 2000 Captured using a Sony Camcorder mounted on a tripod
    Tycho Above: This thumbnail image is an example of what can be achieved using a video camera and 25cm reflector. Tycho is 85 kms in diameter.The images are then dumped onto a PC via an image (frame grabbing) board. At Right: The highly recognisable crater formation that includes Arzachel, Alphonsus and Ptolemaeus. Left of centre is Albatengnius. Image captured with Astrovid 2000 and 15cm (6inch) Optex Newtonian reflector. At right: The prominent Rheita Valley carves its way along the edge of the 70 kilometre crater Rheita at left. Metius is the large crater to the right.
    Camera: LunaCam 4 and 25cm reflector. At right: Aristoteles lower left centre and Eudoxus at upper right taken with the Astrovid 2000 and a SkyWatcher 20cm (8 inch) Newtonian under excellent sky conditions. Plenty of terracing detail can be seen in their rising walls. I've been very impressed with the optical performance of these Chinese built scopes. Above: Composite of 6 video frames to compile the above image taken with a 6 inch Optex reflector Above: Copernicus 93 kms in diameter these four views show its ever changing appearance in only a few days. A 25cm Meade Newtonian and home made video camera were used to capture these images.

    75. Steve Massey's Astronomy Page - The Moon Part 2
    70.6S, 5.5W. Above albategnius nearest center. Diameter 136 kms. 33.9N,1.2E. Above albategnius a closer view. Diameter 136 kms.
    http://members.optushome.com.au/ssmassey/moon2.html
    HOME Page 2 Above: Werner - Diameter 70 kms. Werner is the centre crater in this picture. To the upper left is Aliacensis. Camera used was LunaCam 4 with an 8 inch reflector. Above: Albategnius nearest center. Diameter 136 kms. Image captured with LunaCam 4 with an 8 inch reflector Above: Aristillu s - 55 kilometres in diameter.Upper left of center is Autolycus. captured with LunaCam 4 with an 8 inch reflector Above: Albategnius a closer view. Diameter 136 kms. Image captured with LunaCam 4 with an 8 inch reflector Above: Clavius - Diameter 225 km. This image captured with an 8 inch reflector and budget Saxon video camera. Above: Archimedes - Diameter 83 km. This image captured with an 8 inch reflector and LunaCam 4. Above: Copernicus - 93 kms in diameter. LunaCam 4 with an 8 inch reflector. Return to Page 1 HOME Email All images © 1999 -2003 Steve Massey

    76. The Moon
    Moon Craters Ptolemaeus, Alphonsus, and albategnius. Ranger 9 Bcamera imagefrom 2500 km showing Ptolemaeus, Alphonsus, and albategnius craters.
    http://www.thehubbletelescope.com/moon.html
    The Moon
    The Moon was first visited by the Soviet spacecraft Luna 2 in 1959. It is the only extraterrestrial body to have been visited by humans. The first landing was on July 20, 1969 (do you remember where you were?); the last was in December 1972.
    The Moon is also the only body from which samples have been returned to Earth. In the summer of 1994, the Moon was very extensively mapped by the little spacecraft Clementine and again in 1999 by Lunar Prospector. The gravitational forces between the Earth and the Moon cause some interesting effects.
    The most obvious is the tides. The Moon's gravitational attraction is stronger on the side of the Earth nearest to the Moon and weaker on the opposite side. Since the Earth, and particularly the oceans, is not perfectly rigid it is stretched out along the line toward the Moon. From our perspective on the Earth's surface we see two small bulges, one in the direction of the Moon and one directly opposite.
    The effect is much stronger in the ocean water than in the solid crust so the water bulges are higher. And because the Earth rotates much faster than the Moon moves in its orbit, the bulges move around the Earth about once a day giving two high tides per day. (This is a greatly simplified model; actual tides, especially near the coasts, are much more complicated.)
    But the Earth is not completely fluid, either. The Earth's rotation carries the Earth's bulges slightly ahead of the point directly beneath the Moon. This means that the force between the Earth and the Moon is not exactly along the line between their centers producing a torque on the Earth and an accelerating force on the Moon.

    77. Clementine : Crateres
    Translate this page Adams(-31.00 , 66.00). Agatharchides(-19.00 , 327.00). Agrippa(5.00 , 9.00).albategnius(-11.00 , 4.00). Alexander(40.00 , 14.00). Alfraganus(-5.00 , 19.00).
    http://clementine.cnes.fr/see/craters.html
    Abenezra(-21.00 , 12.00) Abulfeda(-14.00 , 14.00) Adams(-31.00 , 66.00) Agatharchides(-19.00 , 327.00) Agrippa(5.00 , 9.00) Albategnius(-11.00 , 4.00) Alexander(40.00 , 14.00) Alfraganus(-5.00 , 19.00) Alhazen(16.00 , 73.00) Aliacensis(-31.00 , 5.00) Almanon(-17.00 , 16.00) Alpetragius(-16.00 , 355.00) Alphonsus(-14.00 , 357.00) Anaxagoras(77.00 , 350.00) Anaximander(69.00 , 307.00) Anaximenes(75.00 , 310.00) Andel(-10.00 , 13.00) Angstrom(31.00 , 319.00) Ansgarius(-14.00 , 73.00) Antonladi(-19.00 , 78.00) Apianus(-27.00 , 8.00) Apollonius(5.00 , 61.00) Arago(6.00 , 22.00) Archimedes(30.00 , 356.00) Archytas(59.00 , 5.00) Argelander(-17.00 , 6.00) Ariadaeus(5.00 , 17.00) Aristarchus(24.00 , 313.00) Aristillus(34.00 , 2.00) Aristoteles(50.00 , 18.00) Arzachel(-19.00 , 358.00) Asclepi(-55.00 , 25.00) Atlas(46.00 , 45.00) Autolycus(31.00 , 2.00) Auzout(10.00 , 64.00) Azophi(-22.00 , 13.00) Babbage(59.00 , 303.00) Baco(-51.00 , 20.00) Bailly(-67.00 , 297.00) Baily(50.00 , 31.00) Ball(-36.00 , 352.00) Barocius(-45.00 , 18.00) Barrow(73.00 , 10.00) Bayer(-51.00 , 325.00)

    78. The_Chesley_Bonestell_Archives - Page: 17 Of 35
    CIRCLING THE MOON, the rocket passes 200 miles above the crater albategnius. Seenfrom the earth, albategnius is in the center of the moon's visible disk.
    http://www.bonestell.com/the_chesley_bonestell_archives017.htm
    Trip to the Moon (cont.) CIRCLING THE MOON, the rocket passes 200 miles
    above the crater Albategnius. Seen from the earth, Albategnius is in the center of the moon's visible
    disk. THE ROCKET FALLS toward the moon with its
    motors shut off. Since its occupants fall at the
    same speed, they are able to climb out
    weightlessly in special suits. Home Next Gallery

    79. TIMELINE 10th CENTURY Page Of ULTIMATE SCIENCE FICTION WEB GUIDE
    880909 Al-Battani (albategnius) calculates the length of the year and (moreaccurately than others before) determines the precession of the equinoxes.
    http://www.magicdragon.com/UltimateSF/timeline10.html
    TIMELINE 10th CENTURY
    Return to Timeline Table of Contents
    Return to Ultimate SF Table of Contents
    TIMELINE 10th CENTURY
    May be posted electronically provided that it is transmitted unaltered, in its entirety, and without charge. We examine both works of fiction and important contemporaneous works on non-fiction which set the context for early Science Fiction and Fantasy. There are hotlinks here to authors, magazines, films, or television items elsewhere in the Ultimate Science Fiction Web Guide and hotlinks to beyond Magic Dragon Multimedia. Most recently updated: 24 June 2000 [77 kilobytes].
    Facts were also checked against "The 1979 Hammond Almanac" [ed. Martin A. Bacheller et al., Maplewood, New Jersey, 1978], p.795. It also utilizes facts and quotations from Volume I of D.E. Smith's "History of Mathematics" [(c) 1921 by David Eugene Smith; (c) 1951 by May Luse Smith; New York: Dover, 1958]. Jump Straight to the Chronology , or first read the Executive Summary Jump Straight to the alphabetical list of Politico-Military Names
    10th Century: Executive Summary
    In Mathematics and the Sciences , the 10th Century was dominated by Arab Byzantine Chinese , and Persian scholars. With a few exceptions, such as

    80. MuslimHeritage.com - Topics
    Suleiman records the use of fingerprints as signature by the Chinese.858AD, Birth in Haran (Turkey) of AlBatani (albategnius).
    http://www.muslimheritage.com/timeline/chronology.cfm
    Chronology of major events in Muslim Heritage
    This is a short and incomplete list of major developments made by Muslims during the 9th to 16th Centuries.
    Shortcut to: th th th th ... th Centuries.
    th Century
    Muslim merchants reach China (Canton). Foundation of a paper factory in Baghdad; the first in history outside China. The Muslims use different materials from the Chinese, though. This is a development that would subsequently revolutionise learning. The paper industry spreads from Baghdad, to Syria and further West, until it reaches about a century later Europe (Spain) via Morocco.
    Mash'allah writes on the Astrolabe. He was one of the earliest astronomers and astrologers in Islam. Only one of his writings is extant in Arabic, but there are many medieval Latin and Hebrew translations of it. His most popular book in the Middle Ages was the `De scientia motus orbis,' translated by G. Cremonna in the twelfth century.
    Al-Tabari writes on Astronomy. Harun al-Rashid gives Charlemagne a clock that struck the hours. Foundation of the city of Fez by the Idrisids in Morocco.

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