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Topic: Geodesic (general relativity)

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	General relativity - Wikipedia, the free encyclopedia
		General relativity (GR) is the geometrical theory of gravitation published by Albert Einstein in 1915.
		In general relativity, phenomena that in classical mechanics are ascribed to the action of the force of gravity (such as free-fall, orbital motion, and spacecraft trajectories) are taken in general relativity to represent inertial motion in a curved spacetime.
		General relativity was developed by Einstein in a process that began in 1907 with the publication of an article on the influence of gravity and acceleration on the behavior of light in special relativity.
	en.wikipedia.org /wiki/General_relativity (5226 words)

	Articles - Geodesic (Site not responding. Last check: 2007-09-09)
		The term "geodesic" comes from ´´geodesy´´, the science of measuring the size and shape of the earth; in the original sense, a geodesic was the shortest route between two points on the surface of the earth, namely, a segment of a great circle.
		In physics, geodesics describe the motion of point particles; in particular, the path taken by a falling rock, an orbiting satellite, or the shape of a planetary orbit are all described by geodesics in the theory of general relativity.
		This generalizes the notion of geodesic for Riemannian manifolds.
	www.newmirror.com /articles/Geodesic (916 words)

	ScienceDaily: Physics (Site not responding. Last check: 2007-09-09)
		Relativity prescribes a different transformation between reference frames than classical mechanics; this necessitated the development of relativistic mechanics as a replacement for classical mechanics.
		General relativity describes the universe on the scale of planets and solar systems while quantum mechanics operates on sub-atomic scales.
		Theoretical attempts to unify quantum mechanics and general relativity into a single theory of quantum gravity, a program ongoing for over half a century, have not yet borne fruit.
	www.sciencedaily.com /encyclopedia/physics (5028 words)

	Articles - General relativity (Site not responding. Last check: 2007-09-09)
		It unifies special relativity and Isaac Newton´s law of universal gravitation with the insight that gravitation is not viewed as being due to a force (in the traditional sense) but rather a manifestation of curved space and time, this curvature being produced by the mass-energy content of the spacetime.
		In general relativity, the concept of spacetime (which was introduced by Hermann Minkowski for special relativity) is modified.
		In general relativity, the term "gravitation" (meaning the tendency of massive objects to accelerate towards each other) is used instead of "gravity" since gravity is by definition the force which causes gravitation.
	www.spotgps.com /articles/General_relativity (4823 words)

	Graduate Level Course Notes and Tutorial Papers Related to General Relativity (Site not responding. Last check: 2007-09-09)
		General Relativity, by Petr Hadrava, (Astronomical Institute, Academy of Sciences of the Czech Republic).
		Numerical Hydrodynamics in General Relativity, by Jose A. Font (MPA, Garching) offers a comprehensive review (76 pages) of the state of the art of numerical relativistic hydrodynamics, including conservative and hyperbolic formulations of the EFE and Euler equations which are suitable for numerical integration.
		Exercises in General Relativity, from courses taught at the DEA of Theoretical Physics (Ecole Normale Supérieure de Paris) and at the University of Geneva (1996-1999) by Jean-Philippe Uzan (Theoretical Physics, University of Geneva, Switzerland).
	www.math.ucr.edu /home/baez/RelWWW/grad.html (4039 words)

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