Torquetum

Abstract: Contents: The Arabic transmission of Archimedes' Sphere and Cylinder and Eutocius' commentary Some geometrical theorems attributed to Archimedes and their appearance in the West (with M. Folkerts) Remarks on Greek mathematical texts in Arabic A note on the technical vocabulary in Eratosthenes' tract on mean proportionals Some remarks on the Almagestum parvum The astronomy of Jabir ibn Aflah Appendix 1 to item VI: the manuscripts of Jabir's treatise Appendix 2 to item VI: Jabir ibn Aflah and the establishment of trigonometry in the West Abu Kamil on the pentagon and decagon Pseudo-Euclid on the position of the image in reflection: interpretations by an anonymous commentator, by Pena and by Kepler Al-Khazini's a "Sphere that rotates by itselfa (TM) The sphaera solida and related instruments Habash al-Hasib's book on the sphere and its use (with P. Kunitzsch) The Qibla-Table attributed to Al-Khazini Al-Khazini's balance-clock and the Chinese steelyard Clepsydra The astronomical instruments of Jabir ibn Aflah and the Torquetum A note on the horary quadrant Al-Saghani's treatise on projecting the sphere Addenda et corrigenda Index.