Wq/ha/Tarihin kimiya

Aristarchus of Samos was the first known individual to propose a heliocentric system, in the 3rd century BC

The history of science shidin of the historical development of science and scientific knowledge, including both the natural sciences and social sciences.

CONTENT
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Quotes

listed alphabetically by author

A-B

• Reason may be employed in two ways to establish a point: firstly, for the purpose of furnishing sufficient proof of some principle, as in natural science, where sufficient proof can be brought to show that the movement of the heavens is always of uniform velocity. Reason is employed in another way, not as furnishing a sufficient proof of a principle, but as confirming an already established principle, by showing the congruity of its results, as in astrology the theory of eccentrics and epicycles is considered as established, because thereby the sensible appearances of the heavenly movements can be explained; not, however, as if this proof were sufficient, forasmuch as some other theory might explain them.
  • Thomas Aquinas, Template:Wq/ha/W (1265–1274) I, Q. 32, Art. 1, Reply Obj. 2, as quoted in The "Summa Theologica" of St. Thomas Aquinas (1921) Part I. QQ. XXVII-XLIX, pp. 63-64, Tr. Fathers of the English Dominican Province.

• Five geometers—Clairaut,