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In 1700, French mathematician (Laplace) came out the theory that if there was attractive to the body field that was strong enough, the light and somehow he can not escape from this field and as a result will seem dark. This theory has been no proof until he came Albert Einstein’s theory of general relativity in 1915. Physicists began to study in detail and equivalents, which began in support of Laplace theory. According to the general theory of relativity, the gravitational curvature of space where the light straight walks. Which means that the light is affected and deflects under the influence of gravity. The black hole it space arched to the extent that it absorbs light that passes next to him by the appeal, nor any wave or particle escape possible impact area appears black. So black holes look like a dark hole in a region of space and time and is of great intensity and the effect of gravitational tremendously. There are two parts in the black holes are the heart and the event horizon, if I could take a slice of the black hole center it looks like this: Event Horizon (edge of the area from the time and place that the light can escape) is the area around the point or center of gravity. Where the force of gravity becomes infinite to the extent that light can not escape to the outside of the universe, but pulled into the hole. And it is part of the black hole. If made available for you to fall into a black hole, it will be impossible for you to know when to pass the event horizon (it is not a significant part). As well as the heart of the hole is not something tangible too. According to the theory of relativity, the center hole (which infinity point in density) is infinite curvature of space time points. This means that the force of gravity has become infinitely strong in the black hole center, and everything would be doomed to fall into this hole if over the horizon event including light and arrive at the end of the matter to the center hole (where the point of infinity of Alkthaqh). Before you get to it it may have been torn off by the force of gravity sharp, even atoms themselves will be torn apart by the gravity. How the black hole consists? Imagine a star much more massive than our sun, and has a great block, called Critical Mass, which is so large enough to be a reason to be a black hole. So what is the reason that protects the star to collapse within itself to become a black hole? The answer is that there is very high as a result of nuclear reactions pressure inside the star. When this fuel is consumed and which feeds those nuclear reactions then this giant star could not support himself after that, and then the star begins to collapse in on itself, forming a black hole. It should be interesting to follow the evolution and form a black hole as a result of the collapse of a star, but in fact it is impossible control the final steps for the formation of the hole from a fixed external reference. External reference is a place where you can see the formation of a distance, such as astronomical observations from the ground. In addition it is impossible to see the fall of any object inside the hole. To say that the body proves for a moment before entering the hole does not mean, the fall of the body in the hole is accompanied by the fading of the luster of this body to the observer of the event view. At the same time, and when the body up to the edge of the hole will be completely black. This effect is called gravitational glow and caused immense gravity near a black hole. Sizes and the degree of black hole heat Black holes are the largest to be the coldest in terms of temperature because the so-called Hawking temperature measured in billions degrees above absolute zero. On the contrary, the hottest black holes are microscopic or small and that have less than a trillion grams of mass and temperatures in excess of a million degrees to the trillions of degrees even fade. Black holes that have a quantity 0.00001 grams of weight and volume equals 10³³ centimeters and evaporation temperatures equal to 10 ³² degree, makes possible the hottest objects in the universe. This, if any. Exciting things about black holes If you were able to be close enough to the extent of the black hole. You will see the back of your head!. This effect is named after (Einstein ring), caused severe gravity around the black hole. When approaching a black hole, and at a certain distance, the light will coming out of the back of your head and will travel through space and will bend or leaning too much gravity will enter into your eye. Evidence of the existence of black holes There are many methods used to determine the extent of the existence of black holes in our universe. The first way is to look for the objects in our universe with a large amount of mass is very small in size. As an example of that, we can demonstrate that there is a black hole in M 87 This thing weighs more than three billion times stronger than our sun, but with the size does not exceed the size of our solar system. Another way to confirm the presence of a black hole, a search for accelerators or accelerators things. As the black this area or the enormous gravitational field of the hole, this area contributes to the acceleration of anything approaching him to enormous speeds, and speed or acceleration to something that can be observed by the Doppler effect the shift light. Types of black holes As the gravity increase by inverse with the size of black holes can be formed and evolve different Bechtel, any amount of material that is pressing enough to become a black hole, there are some categories of a natural holes. Giant black holes Black holes giants are holes with a mass estimated at between hundreds of thousands and tens of billions of solar mass, and there are several ways to form black holes giant which hole growth by increasing the material being drawn from the perimeter around it. And may be constituted holes giant directly happened and the impact of external pressure at the start of In the first phase of the universe from the Big Bang. Intermediate mass black holes Are holes with mass greater than stellar holes (tens of solar masses) and much less than the giant black holes (a few million solar masses). The evidence of the existence of this little kind, compared with the other two giant asterisks. And how to make up these holes is still not clear, one hand scholars argue that these holes are immense because they have formed collapse of a single star (and this interpretation constitutes black stellar holes). On the other hand those holes an environment lacking the harsh conditions such as high density and speed observed in galaxies that lead to the formation of giant holes centers, but scientists have interpreted ways conformation is possible. The first method is the merger of black holes astrocytes with other compact objects by gravitational radiation, and the second way is the collision huge star with a dense stellar clusters and the breakdown of the results of this collision and becomes a black hole average. In November 2004 was the discovery of a black hole Average dubbed GCIRS 13E, which is the first discovery of this kind in our Milky Way galaxy, and is located orbit within three light years of the star Sagittarius A, and up a block hole is about 1,300 solar masses within the gathering of the seven-star hotel, which likely that the remnants of a massive stellar rally, which attracted the disintegration due to the galactic center, but there are some scientists have questioned the existence of such drilling near the center of the galaxy. Stellar black holes It formed a massive collapse of the star (3 or more solar masses) at the end of his life. This process notes such as an explosion supernova or gamma-ray such as an explosion, such as those drilling have mass at least 1.44 solar masses, and the largest known of this type is the hole mass of 14 solar masses. The synthesis of black holes on Earth Scientists believe they will be able to create black holes, using a method of breaking down corn during the next five years, and believe that the accelerator substance at the European Center for Nuclear Research will be able to create a black hole one every second, and that the accelerator will shoot protons and antiprotons together strong enough that create as terrible heat and energy intensity not seen since the first of billions of seconds after the big Bang. The energy produced should be enough to configure many of the very small holes the mass of a few hundred protons, and such holes of this size will evaporate immediately, while the average black hole sends a poor light and evaporation is very slow, the black hole microscopic (about 1,000 times the mass of the proton) will shows and then ends in about 10-27 of a second and then a billion billion nanoseconds. Source: http://th3prolife.com/black-holes-interesting-facts/