Showing posts with label Black hole. Show all posts
Showing posts with label Black hole. Show all posts

Monday 2 March 2015

What is a black hole?

An artists representation of matter swinging around a black hole. (Image from: nasa.gov)


Space is infinite and beyond what we humans can currently explain. Black holes certainly fall into the category of being unexplainable for now.

I watched Michio Kaku's universe in a nut shell and then I went to see Interstellar (An epic film BTW). Everything was going ok until we reached the last half an hour of the film where Matthew Mcconaughey (Cooper) has suddenly decided to go inside a black hole. Thats when I was puzzled. Off course we know what happened next. I also know that films are just fiction but the question suddenly popped in my mind. Can we actually go inside a black hole?

Accordingly to what scientists have found out about black holes the answer is no you cannot travel inside a black hole and live to tell the tale. To give a short explanation, a black hole is a collapsed star. The only difference between a star and a black hole is that heat isn't emitted as much from a black hole. At the same time the gravitational pull of a black hole is much larger than a star. Stars can be centres of solar systems but black holes are often the centres of Galaxies.

Einstein might go crazy if someone could actually go into a black hole, reach another universe and come back to tell the tale. E=mc^2 or the theory of relativity clearly suggests that nothing can travel faster than light. If you were to reach near a black hole, the experience would be as follows. Since the  the black hole is huge after a point you would only see darkness without experiencing any movement. Your body would stretch out until it was ripped.

There is no way for now to travel into a black hole and reach the singularity (centre of the black hole). Let alone using it as a portal to travel through the universe. As always the comments section is open for your opinions on the topic.

Thanks for reading!