1 - 4 of 4 Chapters
[Ibn al-Haytham, born in Baṣra in the mid-tenth century and died in Cairo after A.H. 432/1040 (Sabra 1989, II: xix–xxiv; Rashed 1993: 1–19), is the author of over one hundred treatises dedicated to the mathematical sciences, among which is the Epistle on the Shape of the Eclipse (Maqāla fī ṣūrat...
[A crescent-shaped image of the light of the Sun can be seen at the time of the eclipse, if its light has passed through a narrow circular aperture and has reached a plane opposite the aperture, provided the eclipse is not a total one and the shape of its remaining part is...
[This Chapter covers the subjects of On the Shape of the Eclipse from a methodological viewpoint. The comment is divided into two main sections: Ibn al-Haytham’s Predecessors and Instrument.]
[This chapter aims to assess the findings of On the Shape of the Eclipse by explaining its reasoning, and by comparing it, firstly to objective data, and secondly to the results of modern optics. This should provide a test of robustness of the results obtained in this work.]
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