Friday, 17 July 2015

Black Holes: The Wonder of Cosmos



Black Holes: The Wonder of Cosmos


Hello, its been a while since I have written a blog post. This time I am going to give light on black holes that are so mysterious topics in advanced physics.
  Black holes can be defined as a body with immense gravity and where escape velocity is speed of light. Black holes are formed when stars collapses and creates a super nova exerting immense amount of radioactive energy from their core. They got their name black as light also bend and is absorbed by the hole resulting in zero visibility.

Singularity and Quantum Space

Black has a center point where all of its mass is stacked and compressed to a size smaller than atom. Black holes can only be formed when gravity of the star’s  core greater enough to crush everything, it crushes the hole stars mass and compresses it to the size of singularity. It is believed that singularity may be small to the size of Plank’s length. The tremendous energy of star is enough to squeeze the wavelength of every particle to almost nothing.

Event Horizon

Every black hole is surrounded by the event horizon. It is a horizon surrounding the black hole where the possibility of even small happenings becomes extinct. No one can see what might happen inside the horizon. The escape velocity also increases as we go deeper towards the horizon. At Event horizon the escape velocity turns 1c that is speed of light. So we can say that singularity is the physical grave where nothing physical can come out.

Tidal forces

When any object fall towards the black hole it stretches or compresses because of the tidal gravity exerted by the hole. Well, of course no one can enter the hole but still if we assume that a rocket is launched from the earth to nearest black whole. This space rocket is super advanced that it can enter the black hole, when it enters the horizon it starts moving faster towards the holes center, it stretches and squeezes. As far as the travellers are concerned they will may be get crumbled or Spaghettified (That’s what this stretching and squeezing is called).

Time’s Death

Inside the black hole at it’s horizon the travellers inside our rocket feel as that the time starts slowing, they will move as faster as they can towards the hole but as soon as they reach the hole they will trapped as the time is stopping because of black holes immense gravity.