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The Free High School Science Texts (FHSST) organization is a South African non-profit project, which creates open textbooks on scientific subjects. Textbooks are edited to follow the government's syllabus, and published under a Creative Commons license (CC BY [1]), allowing teachers and students to print them or share them digitally.
The book is still considered influential in the physics community, with generally positive reviews, but with some criticism of the book's length and presentation style. To quote Ed Ehrlich: [4] 'Gravitation' is such a prominent book on relativity that the initials of its authors MTW can be used by other books on relativity without explanation.
Gravitation, also known as gravitational attraction, is the mutual attraction between all masses in the universe.Gravity is the gravitational attraction at the surface of a planet or other celestial body; [6] gravity may also include, in addition to gravitation, the centrifugal force resulting from the planet's rotation (see § Earth's gravity).
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 longitude.
A full list of Parametric post-Newtonian parameters is not available for Whitehead, [7] Deser-Laurent, [34] Bollini–Giambiagi–Tiomino, [37] but in these three cases =, [citation needed] which is in strong conflict with general relativity and experimental results. In particular, these theories predict incorrect amplitudes for the Earth's tides.
The average rate on a 30-year mortgage in the U.S. eased again this week, slipping to its lowest level since late October. The rate dropped to 6.69% from 6.81% last week, mortgage buyer Freddie ...
A version of non-Euclidean geometry, called Riemannian geometry, enabled Einstein to develop general relativity by providing the key mathematical framework on which he fit his physical ideas of gravity. [6] This idea was pointed out by mathematician Marcel Grossmann and published by Grossmann and Einstein in 1913. [7]
The Crimson Tide finished 9-4 in DeBoer’s first season after losing to Michigan. It was the first time Alabama had won fewer than 10 games since going 7-6 in Saban’s first season in 2007.