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Brahmagupta (c. 598 – c. 668 AD) was the first Indian scholar to describe gravity as an attractive force: [38] [39] [failed verification] [40] [41] [failed verification] The earth on all its sides is the same; all people on the earth stand upright, and all heavy things fall down to the earth by a law of nature, for it is the nature of the ...
Here Brahmagupta found the result in terms of the sum of the first n integers, rather than in terms of n as is the modern practice. [24] He gives the sum of the squares of the first n natural numbers as n(n + 1)(2n + 1) / 6 and the sum of the cubes of the first n natural numbers as ( n(n + 1) / 2 ) 2.
The publication of the law has become known as the "first great unification", as it marked the unification of the previously described phenomena of gravity on Earth with known astronomical behaviors. [1] [2] [3] This is a general physical law derived from empirical observations by what Isaac Newton called inductive reasoning. [4]
Newton "recognized Christ as a divine mediator between God and man, who was subordinate to the Father who created him." [150] He was especially interested in prophecy, but for him, "the great apostasy was trinitarianism." [151] Newton tried unsuccessfully to obtain one of the two fellowships that exempted the holder from the ordination requirement.
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At a fixed point on the surface, the magnitude of Earth's gravity results from combined effect of gravitation and the centrifugal force from Earth's rotation. [ 2 ] [ 3 ] At different points on Earth's surface, the free fall acceleration ranges from 9.764 to 9.834 m/s 2 (32.03 to 32.26 ft/s 2 ), [ 4 ] depending on altitude , latitude , and ...
1911 – Max von Laue publishes the first textbook on special relativity. [51] 1911 – Albert Einstein explains the need to replace both special relativity and Newton's theory of gravity; he realizes that the principle of equivalence only holds locally, not globally. [52] 1912 – Friedrich Kottler applies the notion of tensors to curved ...
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