Can someone throw light about the Black Hole and its significance?

Question

I would like to know why are the scientists rying to understand what the black hole is all about and what are its effects on the worls that we live in?

Answer 1

A black hole is an object predicted by general relativity, with a gravitational field so powerful that even electromagnetic radiation (including light itself) cannot escape its pull.

Black holes are sometimes listed among the most serious potential threats to Earth and humanity.There are two principal ways in which they could affect Earth.

There is evidence that some black holes are not stationary, rather, they "wander" through space. There is only a very slim possibility that a rogue black hole might pass near, or even through our Solar System. At a typical speed of stars' relative motion in the Milky Way, it would take a few decades for a black hole to traverse the Solar System, during which time it would wreak havoc on planets' orbits, and possibly affect Earth and Sun directly if it passes near them.
Fortunately, any black hole with mass that is large enough to cause problems for Earth would be detected well in advance, possibly hundreds of years before its arrival, by its effect on outer planets' orbits. Small black holes would be much less destructive and would pass through the Solar System relatively unnoticed unless they happen to hit one of the planets.

There is a theoretical possibility that a micro black hole might be created inside a particle accelerator. Again, this is not a cause for concern. Many particle collisions that naturally occur as the cosmic rays hit the edge of our atmosphere are often far more energetic than any collisions created by man. If micro black holes can be created this way, they are already created every day without our involvement.
Even if, say, two protons at the Large Hadron Collider can merge to create a micro black hole, this black hole would be extremely unstable, and it would vaporize due to Hawking Radiation before it had a chance to propagate. For a 14 TeV black hole (the center-of-mass energy at the Large Hadron Collider), direct computation of its lifetime by Hawking formula gives 10-100 seconds.

Answer 2

Black holes are having gravitational pull so immense that even light can not escape from this pull. Particle nature of light can be understood more clearly by studying these. Bending of light is observed on full solar eclipse also but this is a rare event. Albert Einstein got his noble for photo electric effect which is due to the particle nature of light.
In block hole, the physical quantity becomes undefined using present accepted theories and postulates. It is believed that one can travel with infinite velocity in black hole. Definitely a better understanding of it is needed and presence of black hole helps in studying this.

Answer 3

There is so much information of the net on the black hole that any answer to this question will go into the black hole even beyond the speed of light. The black hole has such intense pull of gravity that even light cannot escape.

Answer 4

In theory the black hole bends space-time around it in the 3 dimensional universe we can perceive but most people still only think of the textbook cone shape space time dent that the black hole forms but in reality it is a 3 dimensional array of many of these dents in all directions.when light goes into the black hole it is trapped but not in the same way as matter. imagine a photon going into this spce time dent, photons have no mass so they do not fall into the black hole by newtonian laws they just move in the same direction as the fold in space time(i.e the photon is confined in space time but since space time curves the light path curves) if you draw a straight line on a piece of cloth and put a weight on the cloth the cloth folds but the line is still(from its veiw) straight, it has not been undone. light photons are the same. going back to the array of space time dents the black hole(or any object with mass) forms, the light goes into this and the photon is trapped because the black hole is a sphere and a sphere has infinite directions from it, so the array of space time dents is infinite too. if you are familiar with any concepts of electrical charge this is an established fact, spheres have infinite direction vectors from them. imagining a hollow ball with another ball inside it and that is the condition. in answer to your question, if a black hole is spinning, and evidence suggests that some black holes are then if it is spinning fast enough the black hole itself may become deformed in shape and the number of direction vectors would become finite, then yes light can escape from a black hole in theory but, and here's the catch- the light photons have no energy so they're inperceivable! theory only justifies their existence, and thats all we'll ever have.

Answer 5

An interesting new theory exists that at the center of every Galaxy exists super massive black holes. There is even speculation that at the center of our own Galaxy exists a Super Massive Black Hole. If this is true what is the significance?

Answer 6

black holes are very large stars which crush under its own gravitational force .scientists think that they can find more about different kinds of stars from these fascinating things. the black hole absorbs all the light around it . sometimes due to the black holes the light from a few stars cannot be seen

Answer 7

Balck hole is end of a material.
Sun and other visible stars are in state where the atoms are going thrpugh FUSION and combines together to a bigger molecules. After repeated fusion and fusion the electrons of all its atoms collide on the nucleus and make the atoms the most dense possible material. These state is called Black Hole.

For details visit the sites below -

Answer 8

Black Holes are 'Singularity' objects predicted as certain solutions of equations of General Relativity,with a gravitational field so powerful that even electromagnetic radiation(light) cannot escape its pull. They were earlier considered as only a mathematical solutions and not as a real physical phenomena but now they are almost universally accepted as real objects based to indirect observation thanks to recent advancements in astronomy.

They are defined as an object (rotating or non rotating) harboring as point singularity. They are surrounded by an outer boundary called 'Event Horizon' (what happens inside it still a matter of physical discussions and all theories to explain the inner working of Black Hole are still largely Guess work.)

I have answered this for one another question in the same section i will repeat that as for your question that there are strong scientific evidences that almost all galaxies harbor a 'Super Massive Black Hole' in there center weighing more than millions of suns, and they certainly act as center of Galaxy and are the reason to keep the matter of galaxy together by there massive attraction. This allowed the galaxy to evolve as they are today as breeding ground for creation of stars, starting nuclear reactions, hadn't this being the case even our sun would not have formed and let alone planets and eventually us to ponder on this. In other words our universe would have had the same density of matter all over (like outer space) and would have been a very cold and dark place.

There is a lot of activity amongst scientific community for black hole for many reasons ,basically understanding them helps in understanding of beginning of universe itself as big bang theory is based on assumption that universe started with a bang in singularity. Secondly some how explanation of formation of black hole is related to a quantum description of gravity(which may lead to theory of every thing some day).Thirdly it has to do with laws of thermodynamics also which defines behavior of universe and arrow of time.

Answer 9

Black hole is the collapse sun, that is always in the center of the Galaxy . It generates the gravity well that holds many solar systems in orbit.

Answer 10

It's gravity is stronger than light
I also heard that a spoonful of a black hole cant be lifted by 15 full grown men