Al-Kharaqī
Abū Muḥammad 'Abd al-Jabbār al-Kharaqī, also Al-Kharaqī was a Persian astronomer and mathematician of the 12th century, born in Kharaq near Merv. He was in the service of Sultan Sanjar at the Persian Court. Al-Kharaqī challenged the astronomical theory of Ptolemy in the Almagest, and established an alternative theory of the spheres, imagining huge material spheres in which the planets moved inside tubes.
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Al-Kharaqī
Abū Muḥammad 'Abd al-Jabbār al-Kharaqī, also Al-Kharaqī was a Persian astronomer and mathematician of the 12th century, born in Kharaq near Merv. He was in the service of Sultan Sanjar at the Persian Court. Al-Kharaqī challenged the astronomical theory of Ptolemy in the Almagest, and established an alternative theory of the spheres, imagining huge material spheres in which the planets moved inside tubes.
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Abū Muḥammad 'Abd al-Jabbār al ...... calculus of dirham and dinar).
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محمد بن أحمد بن أبي بشر المروز ...... هى الإدراك في تقاسيم الأفلاك».
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Abū Muḥammad 'Abd al-Jabbār al ...... he planets moved inside tubes.
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محمد بن أحمد بن أبي بشر المروز ...... هى الإدراك في تقاسيم الأفلاك».
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Al-Kharaqī
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محمد بن أحمد بن بشر المروزي
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