Download E-books Naṣīr al-Dīn al-Ṭūsī's Memoir on Astronomy (al-Tadhkira fī cilm al-hay'a): Volume I: Introduction, Edition, and Translation (Sources in the History of Mathematics and Physical Sciences) PDF

I used to be brought to Tiisi: and his Tadhkira a few 19 years in the past. That first assembly used to be neither chuffed nor auspicious. My graduate pupil notes from the time point out a definite point of bewilderment and frustration; I appear to have had difficulty with such phrases as tadwlr (epicycle), which used to be to not be present in my ordinary dictionary, and with the idea that of solid-sphere astronomy, which, whilst stumbled on, was once pooh-poohed within the commonplace resources. I had one other, much more decisive response: boredom. basically the top of the time period introduced aid, and that i was once thankful to be directly to different, extra intriguing facets of the background of technology. many years later, i discovered myself, because of fellowships from Fulbright-Hays and the yank examine heart in Egypt, fortunately immersed within the manu­ script collections of Damascus, Aleppo, and Cairo. notwithstanding I had meant to paintings on a subject matter within the historical past of arithmetic, i used to be drawn, probably necessarily, to a definite kind of astronomical writing falling below the rubric of hay' a. at the beginning this fascination used to be in keeping with sheer numbers; that such a lot of medieval scientists may have written on this kind of topic needs to suggest whatever, I informed myself. (I used to be in a sociological mode on the time.

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