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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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 December 2024. Indian mathematician and astronomer (598–668) Brahmagupta Born c. 598 CE Bhillamala, Gurjaradesa, Chavda kingdom (modern day Bhinmal, Rajasthan, India) Died c. 668 CE (aged c. 69–70) Ujjain, Chalukya Empire (modern day Madhya Pradesh, India) Known for Rules for computing with Zero ...
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 ...
The God Equation: The Quest for a Theory of Everything is a popular science book by the futurist and physicist Michio Kaku. The book was initially published on April 6, 2021, by Doubleday. [1] [2] The book debuted at number six on The New York Times nonfiction best-seller list for the week ending April 10, 2021. [3]
The proposal to describe gravity by means of a pseudo-Riemannian metric was first made by Einstein and Marcel Grossmann in the so-called Entwurf theory published 1913. [4] Grossmann identified the contracted Riemann tensor as the key for the solution of the problem posed by Einstein.
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The book begins its first chapter by discussing ancient history and old beliefs regarding gravity and what lies above. This includes a discussion of belief in gods and how those religious views were shaped by the existence of gravity and its prevalence on living beings and all matter. [ 1 ]
Craig has stated that, if anything existed before the past boundary described by the theorem, it would be a non-classical region described by an as-yet-undetermined theory of quantum gravity. He refers to statements by Vilenkin [ 53 ] that, in such a scenario the non-classical region, rather than the boundary, would then be the beginning of the ...