Английская Википедия:Ali ibn Khalaf

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Шаблон:Short description Alī ibn Khalaf (Шаблон:Lang-ar) was an Andalusian astronomer[1] who belonged to the scientific circle of Ṣāʿid al- Andalusī.[2]

He devised, with help from al-Zarqali, the universal astrolabe.[3] Both Khalaf and al-Zarqali's design were included in the Libros del Saber (1227) of Alfonso X of Castile.[4]

References

Шаблон:Reflist

Шаблон:Islamic astronomy

  1. Шаблон:Cite journal
  2. Шаблон:Cite journal
  3. David A. King, World-maps for finding the direction and distance to Mecca, (Brill, 1999), 330.
  4. Koenraad Van Cleempoel. "The Migration of Instrumental Knowledge from Flanders to Spain," in: Silent Messengers: The Circulation of Material Objects of Knowledge in the Early Modern Low Countries, Sven Dupré and Christoph Herbert Lüthy (eds.), (Transaction Publishers, 2011), p. 76.