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History of Classical Gravitational Theory and General Relativity
Transcript of History of Classical Gravitational Theory and General Relativity
Fg = Gm1m2/r2. G = 6.67 x 10-11
Einstein developd the general theory
of relativity, which is a different way
to explain gravitational phenomena.
The equivalence of inertial and gravitational properties are the basis of general relativity. This means that gravitational and inertial affects are not distinguishable. A mass causes a dip in the space-time fabric. Other masses ride into the dips.
This is how masses are attracted to other masses. Light also rides the fabric of space-time and a heavy mass causes a sharp hole. Light will ride into one of these holes and the heavy mass will not let it escape. The closest approach to the center of that hole where light can excape is the Schwarzschil radius. Black holes are thought to be real, and there are several candidate regions of space where they are thought to exist. They might result from a large star exploding outward and inward causing a very small and heavy body with sufficient gravity to trap light. A lens bends light and can be used to control the focus of light. One of the primary proofs of Einstein's theory is that light passing near a heavy body will be bent in a lens-like fashion. This is gravitational lensing. Some people believe worm holes exist. They could be the result of the fabric of space being folded in a certain region of space where a deep depression in one region of space-time opens into another region. There is no real evidence for their existence, but they fit some equaion solution in relativity. There have been experimental results that confirm predictions of general relativity.
Some of these include: The distance of Mercury's closest approach to the sun moves The lensing of light by the sun The redshift of light due to gravity Slowing of clocks in a high gravity field History of Classical Gravitational Theory and General Relativity