Black Hole
Black Hole |
The place were nothings we judge about anything in space is" black hole".Black Hole is that place were nothings can work and which goes under that neither came back.
Black Hole is also called as "Empty Space".The black hole have strongest gravity influnes inside which attract every thing.Under the black hole is only dark.
Einsteins Theory
Einstein Theory |
Despite being over 100 years old, GR represents the current description of gravitation in modern physics. In fact, the predictions of GR have been extremely well tested in the “local” universe, both in the weak field limit (as in the Solar System) and more recently for strongly self-gravitating bodies in pulsar binary systems. The first test of GR was the Eddington’s solar eclipse expedition of 1919 by Eddington, and remarkably GR has successfully passed all tests carried out so far. Nevertheless, gravity in its GR description remains the least understood of all forces, e.g., resisting unification with quantum physics. In fact, GR assumes a classical description of matter that completely fails at the subatomic scales which govern the early Universe. Therefore, despite the fact that GR represents the most successful theory of gravity to date, it is expected to break down at the smallest scales.
Hawing Theory |
Hawking Theory
In fact, science fiction writers should not have been taken so much by surprise.The idea behind black holes, has been around in the scientific community for more than 200 years. In 1783,a Cambridge don, John Michell, wrote a paper in the Philosophical Transactions of the Royal Society of London,about what he called dark stars. He pointed out that a star that was sufficiently massive and compact, would have such a strong gravitational field that light could not escape. Any light emitted from the surface of the star, would be dragged back by the star's gravitational attraction, before it could get very far. Michell suggested that there might be a large number of stars like this. Although we would not be able to see them, because the light from them would not reach us, we would still feel their gravitational attraction. Such objects are what we now call black holes, because that is what they are, black voids in space. A similar suggestion was made a few years later, by the French scientist the Marquis de La plass, apparently independently of Michell. Interestingly enough, La plass included it in only the first and second editions of his book, The System of the World, and left it out of later editions. Perhaps he decided that it was a crazy idea.
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