dimarts, 5 d’abril del 2011

THE WORMHOLES AND BLACKHOLES

In physics, a wormhole, also known as an Einstein-Rosen bridge is a hypothetical topological feature of space time, which is essentially a short cut through space time. The first scientist to warn of the existence of wormholes was Ludwig Flamm in11916. In this sense the hipotesis of warmholes is an updateof the theory of a fourth spatial dimension wich mean, for example, a fouth spatial dimension that would short distances and travel . A wormhole has at least two ends, connected to a single throat can move from one end to another passing through it.The initial notion was embodied most scientifically in 1921 by the mathematician Hermann Weyl in connection with their analysis of the mass in terms of the energy of an electromagnetic field.Today string theori admits the existence of more than 3- dimensional space (hyperspace), but the other spatial dimensions would be contracted or compacted at subatomic scales  . (as Kaluza-Klein theory) it seems very difficult (one might say "impossible") to exploit such spatial dimensions "extra" to travel in space and time.
Wormholes connecting intra-universe universe position to another position in the same universe at a different time. A wormhole should be able to connect distant locations in the universe by folding spacetime, allowing travel between them in less time than it would make the journey through normal space.
Wormholes associated inter-universe with a different universe and are called Schwarzschild wormholes. This allows us to speculate if such wormholes could be used to travel from one parallel universe to another. Another application of a wormhole might be time travel. Then it would be a shortcut to move from one spatial point to a different location. In string theory a wormhole is viewed as the connection between two D-branes, where the mouths are associated with membranes and connected by a flow tube. It is believed that wormholes are a part of the quantum foam or spatiotemporal.

A black hole is a finite region of space-time caused by a large concentration of mass in its interior, with huge increase in density, which generates a gravitational field such that any particle of matter, even photons of light, can escape in that region.
The curvature of space-time or "gravity of a black hole" causes a singularity surrounded by a closed surface, called the event horizon. This is due to the large amount of energy from celestial object. The event horizon separates the black hole region from the rest of the universe and is the boundary of space from which no particle can leave, including light. This curvature is studied by general relativity, which predicted the existence of black holes and was its first indication.
The origin of black holes is raised by the astrophysicist Stephen Hawking in his 1988 book titled in Spanish History of Time: From Big Bang to Black Holes explaining the process that gives rise to the formation of black holes.
This process begins subsequent to the death of a red giant (star of large mass), call it death to the total extinction of its energy. After several billion years of life, the gravitational force of the star begins to exert force on itself, causing a mass concentrated in a small volume, becoming a white dwarf. At this point the process can continue until the collapse of the star by the gravitational attraction car ends up turning to the white dwarf into a black hole. This process eventually pull together a force so strong that even light trapped in it a black hole is the end result of the extreme gravity can be pushed to the limit. The same gravity that keeps the star stable, is beginning to compress to the point that the atoms to flaten

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