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| artist's conception of a black hole. Credits: NASA |
But ... What is a black hole? Black hole ... a word that sounds like science fiction. Being pragmatic, the answer is simple: a black hole is the final stage of a star much more massive than the Sun speaking, a black hole will happen when the mass of the star exceeds the Chandrasekhar limit .
Then, if the answer to the question "What is a black hole is so simple, why create so much controversy? There are several reasons:
One is that these heavenly bodies are so massive and, therefore, so much gravitational pull that nothing can escape this force. According to Giovanni Miniutti says (Center for Astrobiology, CSIC-INTA) in laflecha.net , "for its intense gravity, no particle of matter, not even light can escape from black holes (...) As the matter falls toward the black hole is so hot that issued its latest call for help in the form of high energy radiation from X-rays before disappearing forever. "And those X-rays which detected. Thanks to them and using indirect methods of study, we know that black holes exist and we know their characteristics.
Another reason, and not least, we do not know what happens when matter crosses the event horizon , and that to escape the pull of the black hole should travel faster than the speed of light (300,000 km / s) and, as we know from the Theory of Relativity of Albert Einstein, is possible to overcome this speed, therefore, no data on what happens inside. In other words, when something crosses the event horizon of the observable universe disappears.
The volume that encompasses the event horizon in physics is called uniqueness, and this occurs when a rule of science is not enforced. In this case, if light can not escape the event horizon is because the escape velocity at these points is greater than the speed of light, that is not true in our physics.
The enormous gravitational forces that appear in the vicinity of a black hole can be bent so the spacetime that we are looking forward we would our own back. When it crosses the event horizon, anything can be valid because once you've crossed that barrier, the laws we know disappear and imagine anything could happen.
If we seek a place where there are no corrupt politicians, where the human being to respect their peers, or where you meet all the wishes of the Miss Universe of Time, that place is inside the event horizon (or at least for now) .
Then, if the answer to the question "What is a black hole is so simple, why create so much controversy? There are several reasons:
One is that these heavenly bodies are so massive and, therefore, so much gravitational pull that nothing can escape this force. According to Giovanni Miniutti says (Center for Astrobiology, CSIC-INTA) in laflecha.net , "for its intense gravity, no particle of matter, not even light can escape from black holes (...) As the matter falls toward the black hole is so hot that issued its latest call for help in the form of high energy radiation from X-rays before disappearing forever. "And those X-rays which detected. Thanks to them and using indirect methods of study, we know that black holes exist and we know their characteristics.
Another reason, and not least, we do not know what happens when matter crosses the event horizon , and that to escape the pull of the black hole should travel faster than the speed of light (300,000 km / s) and, as we know from the Theory of Relativity of Albert Einstein, is possible to overcome this speed, therefore, no data on what happens inside. In other words, when something crosses the event horizon of the observable universe disappears.
The volume that encompasses the event horizon in physics is called uniqueness, and this occurs when a rule of science is not enforced. In this case, if light can not escape the event horizon is because the escape velocity at these points is greater than the speed of light, that is not true in our physics.
The enormous gravitational forces that appear in the vicinity of a black hole can be bent so the spacetime that we are looking forward we would our own back. When it crosses the event horizon, anything can be valid because once you've crossed that barrier, the laws we know disappear and imagine anything could happen.
If we seek a place where there are no corrupt politicians, where the human being to respect their peers, or where you meet all the wishes of the Miss Universe of Time, that place is inside the event horizon (or at least for now) .
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