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Saw Three-Day Meeting "How do writings in the astral sciences document mathematical practices and the practitioners?"5th February 2015, 9.30 am-5.30pmUniversity Paris Diderot9.30 am-11.30 amDaniel Morgan (ERC-SAW, SPHERE)Sphere Confusion: The Textual Reconstruction of First-millennium hun Instruments11.45 am -1 pm/2.15 pm -3.00pm  Sho Hirose (ERC-SAW, SPHERE)What were the functions of the armillary sphere in Paramesvara’s Goladīpikā?3.15 pm-5 pmNathan Sidoli (Wasada University, Tokyo, and researcher invited by the SAW project) The use of physical devices to do computation. Selections from Ptolemy's Analemma, and Heron's Dioptra 35&#160;Bâtiment/Building Condorcet, Room/Salle 646A 4 rue Elsa Morante 75013 Paris or 10 rue Alice Domon et Léonie Duquet 75013 ParisProgramme and Map