Anatomy of a Black Hole

[Gaina]

This is so geeky, I just love it!

Anatomy of a Black Hole.

[ron1863]

I enjoyed it too and it was educational

[Hedge Witch]

Interesting, Gaina. Still trying to work out how density can be infinite

[Gaina]

Originally Posted by Hedge Witch

Interesting, Gaina. Still trying to work out how density can be infinite

Look no further than any politician - they demonstrate 'infinite density' quite beautifully .

[Hedge Witch]

Originally Posted by Gaina

Look no further than any politician - they demonstrate 'infinite density' quite beautifully .

LOL So true!

[treecreeper]

I don't see how the third theory of what happens to the spaceship - i.e. it reappears at a remote galaxy - is compatible with Conservation of Mass. Even if the spaceship reappears in its new location immediately, to a stationary observer, the two events (disappearance into black hole and reemergence elsewhere) are not simultaneous to a moving observer according to Special Relativity, so Conservation of Mass has been compromised.

[nytecam]

It's a great animation but I don't have the knowledge to challenge it

I did wonder if the BIG Bang that created 'our' universe 13.7B years ago, reputedly from a singularity shown in the animation, may the exit point of matter from another universe that vanished into a rather [large] blackhole. Presumably a singularity is just that however much material it contains eg a whole universe.
I'm not aware of any size limit to a blackhole or maybe there is?

[monkeypoo]

Interesting and informative! Black Holes - they're gggggggreat!

[Doggle Avaddit]

Originally Posted by Hedge Witch

Interesting, Gaina. Still trying to work out how density can be infinite

Well I don't know much about Black Holes, but I do know that mathematics is quite fond of "Series' ", where infinity is never quite reached but mathematically kind of is.

e.g. if you measure 1 metre, then add 1/2 metre then add 1/3 metre then 1/4metre and continue for ever, your measured line will get increasingly close to infinity without actually ever getting there. This is called a Divergent Series.

However, if you measure 1 metre, add 1/2 metre, then add 1/4 metre then 1/8 metre and continue for ever, your measured line will get increasingly close to 2 metres, again without actually ever getting there. This is a Convergent Series.


So, perhaps the density of a black hole increases as you go further towards the singularity, for all intents and purposes reaching infinity, but not really.

Or perhaps I am talking a load of rubbish and a singularity really is infinite density. In theory of course.

[Hedge Witch]

Interesting. I was just assuming that the sun had mass, and some of that mass becomes a certain volume. And so it has a certain density. I'll try and think about it some more. Cheers