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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.
: Covers the development of particle accelerators. [17] (The chapter title is likely an wry allusion to the 1969 film "They Shoot Horses, Don't They?") Chapter 7: A-tom!: The book uses the word "A-tom" to refer to Democritus' fundamental, uncuttable particle. This chapter covers the discovery of the fundamental particles of the Standard Model. [18]
The central claim of the book is that the theory of quantum mechanics and the theory of relativity together help us understand how universes could have formed out of nothing. [9] The authors write: Because there is a law such as gravity, the universe can and will create itself from nothing.
Here Eratosthenes described his famous story of the well in Syene, wherein at noon each summer solstice, the Sun's rays shone straight down into the city-center well. [25] This book would now be considered a text on mathematical geography. His third book of the Geography contained political geography. He cited countries and used parallel lines ...
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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 ]
The National Book Foundation awards winners in fiction, nonfiction, poetry, translated literature and young people’s literature. This year, publishers submitted a total of 1,917 books.