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Excuse my ignorance(I know you have been doing that!but how can you have a black hole?(I do know what I have let myself in for with that question!
Surely only the rim and sides of the hole are black but the hole itself does not contain any colour reflecting particles.
I think I'll have a wee lie down
The best way to keep a secret:- Tell everyone not to tell anyone.
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have i just ended the world
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Black is not a colour.Originally posted by bigboab@2 August 2003 - 16:35
Excuse my ignorance(I know you have been doing that!
Surely only the rim and sides of the hole are black but the hole itself does not contain any colour reflecting particles.
I think I'll have a wee lie down
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So you cant be accused of colour prejudice then!
The best way to keep a secret:- Tell everyone not to tell anyone.
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Absolutely not!
Every planet (etc) has an escape velocity. This is the speed at which something must travel to escape it's gravitational pull.
A black hole is a collapsed star, which has collected more and more matter. It therefore has an enormous amount of material in a small space.
The higher the mass the higher the escape velocity. For a black hole the escape velocity is higher than the speed of light.
Any light which hits it cannot reflect back, because it is not travelling fast enough.
It is therefore black, total absence of reflected light.
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If it is full of material then it is not a hole then is it?(Pedantic)
I'm getting tired
The best way to keep a secret:- Tell everyone not to tell anyone.
It's effectively a hole in space.
Things fall into it, but never come back out.
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JPaul????Originally posted by bigboab@2 August 2003 - 16:48
If it is full of material then it is not a hole then is it?(Pedantic)
I'm getting tired
JPaul???? [/b][/quote]Originally posted by nigel123+2 August 2003 - 15:49--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (nigel123 @ 2 August 2003 - 15:49)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-bigboab@2 August 2003 - 16:48
If it is full of material then it is not a hole then is it?(Pedantic)
I'm getting tired
I'm not talking to you - Jonno killer.
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but how can you have a black hole?(I do know what I have let myself in for with that question!
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