EVENT HORIZON OF A BLACK HOLE

ARTICLE- 99

AKG

AKG HQ

CIVIL LINES

NAGPUR

10/10/09

TITLE- EVENT HORIZON OF BLACK HOLE

Black hole is a stage of a star when the outer layers of the stars move away from the core. as a result of this, we have a supernova explsion and the core that remains has a high mass.

Nothing can pass through a black hole, a light that is moving close to black hole is attracted by it

most of us know this fact but very few of us know the situation that can happen when any object enters a black hole. gravitational red shift is a phenomena that describes the phenomena of light to change the wavelength for different gravitational areas.

Suppose the light from a star is moving against the gravitational field, towards a less gravity object, there is redshift. that is the light's spectrum is shifted to longer wavelength.

if a blue light is emitted towards a black hole, the spectrum is similar as mentioned above.

if you move towards a black hole and are above event horizon, you can still come out and observe surroundings and time. But when you reach a event horizon, you are unable to see the external world. we can call this as the boundary of escape velocity. specific the point beyond which outside time and events doesn't affect the person

once you enter the event horizon, the gravitational forces acting on us are so strong that we are pulled largely on one side. if may be similar to a person whose hand is being pulled by tiger. 

This force is so strong that it breaks the molecular bonds of human body and we are reduced to small atoms only. 

once you are in you are confined to strong gravity..

Einstein had worked a lot on event horizon. We use his concepts today to describe event horizon..

It is more described by a light cone. As shown in this image,a particle travelling from other side of space when enters even horizon no longer remains in the present light cone. thus the events don't affect him.. 

THE EVENTS ONLY AFFECT ANY OBJECT WHEN IT IS IN THE LIGHT CONE..

AKSHAY