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What is the difference between a black hole and a wormhole ?

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- Thread starter Jadaav
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- #1

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What is the difference between a black hole and a wormhole ?

- #2

jimgraber

Gold Member

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But blackholes are generally agreed to be exact solutions to general relativity (GR) using only ordinary matter to form. Wormholes are more controversial, and require exotic matter, or something else unusual in order to form and not collapse, according to GR.

Best,

Jim Graber

- #3

Nabeshin

Science Advisor

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This is not generally what the layperson thinks of as a wormhole, then, as most people want something they can jump through and emerge from unscathed. These traversable wormholes are quite different from black holes in the sense that they are completely different solutions to Einstein's equations. As jimgraber notes, though, exotic matter is generally necessary to arrive at one of these traversable wormhole situations, so at the moment their theoretical basis rests on the plausibility of such a quantity of exotic matter existing.

In case you are unfamiliar, exotic matter is a class of matter which either a) has imaginary mass or b) has negative mass. This is a distinct concept from antimatter, which still has positive mass and obeys all known laws of physics.

Is the distinction clear (both between exotic matter and antimatter and black holes and worm holes)?

- #4

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I don't don't pretty much anything on GR though, I'm not at that level right now.:( First need to learn add- maths and then I'll be able to get on these:D and I'm just 14 years old.

I have understood the difference between the tranversable and non-traversable wormhole, but I don't know much about singularity though and the same case for exotic matter and antimatter.

- #5

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could you please explain what a singularity is?smashing into a singularity

- #6

Nabeshin

Science Advisor

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- #7

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Thanks

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