Stephen Hawking

 *The most important thing in life of physicists is to know the physical and the study of phenomena with the analysis. 
Some physicists devoted their lives for this purpose. Physicians,one of the finest contemporary we find Stephan Hawking  .




To day i want to talk about his great and lovely idea about :  black hole . 

• The idea of ​​a so-called Horizon  where nothing can- completely incompatible with quantum physics. "Thus the great physicist Stephen Hawking said in another research published him, causing a sensation in scientific circles around the world. He claimed Hawking that the concept of" event horizon Event horizon "- a hidden the extent that it can not be anything including light out of it anyway bypassed under the influence of the black hole attracting - is a real and contradictory with quantum physics.

• Instead of the "event horizon," Hawking presents the idea of ​​"virtual horizon", where matter and energy are temporarily booked inside until it is released again at the end, but distorted. He says that quantum theory allows the energy and information to escape from the attractiveness of the black hole. This new research comes an attempt to resolve what is known as the "paradox of firewall black hole", which was discovered about two years ago by a theoretical physicist Joseph Bolshinski.

• This paradox occurs when you try to answer the question of what the astronaut may occur when approaching a black hole. According to the general theory of relativity, what will happen is that the astronaut will cross the event horizon without feeling something, then his body starts to elongation largely as a result of the terrible tension caused by gravity force a black hole until it is crushed in the end when what is known as a point singularity (singularity) - with infinite density theory points exist when the black hole center.

• While the conclusion Bolshinski come, reached by the laws of quantum physics, states that the event horizon will be a region with very high energy; firewall enough to burn astronaut completely before bypassed them. Hence the paradox came a stark contradiction between general relativity and quantum physics.

• But now Hawking poses a third option is much simpler and reconciles between general relativity and quantum physics. Black holes simply does not have the event horizon, the key to the solution lies in the effects of quantum mechanics around the black hole causing a large fluctuation in the fabric of space-time makes it impossible for the whereabouts fairly clear in space.

• Instead, it is proposed the idea of ​​"virtual horizon" which is about the surface of the stand has light rays that are trying to get out of the black hole, according to general relativity, the biplane which represent the event horizon and virtual horizon Akunan identical, as the light that is trying to escape from a black hole can not bypass the virtual horizon but would remain on hold him (like a person on an electric walker - make energy in motion, but it remains stalled in its place).

• But when the ingestion of amounts of material inside the black hole, the event horizon swells and larger than the virtual horizon. The reverse is also true. Hawking has assumed before that black holes could also be an absolute so-called "Hawking radiation" In this case, the event horizon of deflation will become smaller than the virtual horizon in theory. But in both cases the virtual horizon will be the true extent of the black hole. The event horizon would not exist.

• In contrast to the event horizon, the virtual horizon is possible to disappear in the end, allowing the exit of anything that was being held at home (but will not be in such condition or form indigenous). It is difficult to know how it could happen, but one of the assumptions says that when he shrinks to a certain size has to be the effects of quantum mechanics and relativity identical, it simply fades.

• If Hawking is right, it means that it may not even uniqueness point in the center of the black hole there. Which means that the article will only be held behind the virtual horizon is moving too slowly to the inside because of the attractiveness of the black hole, but it will never reach the center. While information relating to such material is not destroyed or out outside the scope of the universe as I expected some previous hypotheses, but leave the black hole through Hawking radiation. Nevertheless, they will be confused and completely different from the situation in which it entered the black hole, which makes it very difficult to know what was inside the black hole swallowed by.