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Describes the machinery of gravity based on the idea that all matter is expanding forever. Derives equations showing that the intuitive notion that this idea can not be correct because objects of different densities would change sizes is wrong. Instead because nothing can go faster than light speed, objects regardless of densities or geometry converge in sizes such that the ratio of all sizes remain almost time invariant. However, there remains a very small difference in the ratios that can be measured under some conditions and shows up in certain long distance measurements. One example being the three Pioneer 10/11 anomalous accelerations and the apparent (but unexplained) expansion of the earth. The idea is developed and then applied to six problems in physics (bending of starlight, advance of the perihelion of Mercury, behavior of spiral galaxies, expansion of the earth, anomalous acceleration terms for Pioneer 10/11, and acceleration of universe expansion) showing very nice explanations and solutions matching measurement results with (in some cases) simpler solutions than in the literature.
With his talking dog, Frankie, as a constant companion, ten-year-old Cal Barraclough investigates his wacky neighbor's unusual experiments.
Spacetime physics -- Physics in flat spacetime -- The mathematics of curved spacetime -- Einstein's geometric theory of gravity -- Relativistic stars -- The universe -- Gravitational collapse and black holes -- Gravitational waves -- Experimental tests of general relativity -- Frontiers
Extraordinary things happen in Cayuga Ridge, a small quiet town where everything runs correctly, the day the switch at the gravity company is accidentally turned off.
The Feynman Lectures on Gravitation are based on notes prepared during a course on gravitational physics that Richard Feynman taught at Caltech during the 1962-63 academic year. For several years prior to these lectures, Feynman thought long and hard about the fundamental problems in gravitational physics, yet he published very little. These lectures represent a useful record of his viewpoints and some of his insights into gravity and its application to cosmology, superstars, wormholes, and gravitational waves at that particular time. The lectures also contain a number of fascinating digressions and asides on the foundations of physics and other issues.Characteristically, Feynman took an untraditional non-geometric approach to gravitation and general relativity based on the underlying quantum aspects of gravity. Hence, these lectures contain a unique pedagogical account of the development of Einstein's general theory of relativity as the inevitable result of the demand for a self-consistent theory of a massless spin-2 field (the graviton) coupled to the energy-momentum tensor of matter. This approach also demonstrates the intimate and fundamental connection between gauge invariance and the principle of equivalence.