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On Sizes and Distances (of the Sun and Moon) (Greek: Περὶ μεγεθῶν καὶ ἀποστημάτων [ἡλίου καὶ σελήνης], romanized: Peri megethon kai apostematon) is a text by the ancient Greek astronomer Hipparchus (c. 190 – c. 120 BC) in which approximations are made for the radii of the Sun and the Moon as well as their distances from the Earth.
Mihalis Dafermos (born 1976) - Professor of Mathematics at Princeton University and Lowndean Chair of Astronomy and Geometry at the University of Cambridge [17] Apostolos Doxiadis (born 1953) - Australian born Mathematician. [18] Athanassios S. Fokas (born 1952) - Contributor in the field of integrable nonlinear partial differential equations. [19]
The major accomplishment of Hippocrates is that he was the first to write a systematically organized geometry textbook, called Elements (Στοιχεῖα, Stoicheia), that is, basic theorems, or building blocks of mathematical theory. From then on, mathematicians from all over the ancient world could, at least in principle, build on a common ...
Apollonius of Perga (c. 240 – c. 190 BC) is known for his work on conic sections and his study of geometry in 3-dimensional space. He is considered one of the greatest ancient Greek mathematicians. Hipparchus (c. 190 – c. 120 BC) is considered the founder of trigonometry [9] and also solved several problems of spherical trigonometry.
On Sizes and Distances, by Hipparchus (c. 190 – c. 120 BC Topics referred to by the same term This disambiguation page lists articles associated with the title On Sizes and Distances .
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Composed of three books, it deals with the geometry of the sphere and its application in astronomical measurements and calculations. The book introduces the concept of spherical triangle (figures formed of three great circle arcs, which he named "trilaterals") and proves Menelaus' theorem on collinearity of points on the edges of a triangle ...