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**A Couple Questions.........**

I was recently watching a t.v. show and the following terms came up: event horizon, singularity and schwarzchild radius.... Can anyone tell me what these things are?

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- Thread starter Inquiring_Mike
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- #1

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I was recently watching a t.v. show and the following terms came up: event horizon, singularity and schwarzchild radius.... Can anyone tell me what these things are?

- #2

mathman

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The event horizon is determined by the Schwarzchild radius and it refers to the point of no return for any object falling into a black hole.

A singularity (in this context) refers to the idea that all the mass of a black hole is concentrated at one point of infinite density - a prediction of general relativity. Since quantum theory breaks down under these circumstances, no one really knows what happens inside a black hole.

- #3

jcsd

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The Schwarzchild radius is the radius of the sphere around the (Scwarzchild) black hole whose surface forms the event horizon and is given by the simple equation:

[tex]r_S = \frac{2GM}{c^2}[/tex]

Ther singularity is the infintely dense point at the centre of a black hole which matter is pulled to.

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Interesting........ Thanks....It all makes sense now.....

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