Cosmogenesis .

[unbeliever]

Now you do.

 

I suppose so.

 

An eternal universe would be in thermal equilibrium.

This is an unavoidable consequence of the second law of thermodynamics.

It has been understood for over 150 years.

https://en.wikipedia.org/wiki/Heat_death_paradox

You only have to learn a little bit of 19th century physics to understand this.

Quantum mechanics and general relativity are irrelevant.

Edited May 11, 2016 by unbeliever

[sutty27]

I suppose so.

 

An eternal universe would be in thermal equilibrium.

This is an unavoidable consequence of the second law of thermodynamics.

It has been understood for over 150 years.

https://en.wikipedia.org/wiki/Heat_death_paradox

You only have to learn a little bit of 19th century physics to understand this.

Quantum mechanics and general relativity are irrelevant.

 

How does a black hole transfer heat to its cooler surroundings?

[unbeliever]

How does a black hole transfer heat to its cooler surroundings?

 

Hawking radiation probably. This has yet to be confirmed.

How is it relevant?

[sutty27]

Hawking radiation probably. This has yet to be confirmed.

How is it relevant?

 

Gravity would cause an increase in temperature and density not a decrease in temperature.

 

For now that is another unproven idea, what I don't understand about the idea is why its would reduce the mass of the black hole, the idea being that the vacuum creates virtual partial pairs that normally destroy each other, but instead of destroying each other one falls in to the black hole and one escapes, this would surely increase the mass of the black hole unless its always the anti matter particle that fall in.

[stifflersmom]

Gravity would cause an increase in temperature and density not a decrease in temperature.

 

For now that is another unproven idea, what I don't understand about the idea is why its would reduce the mass of the black hole, the idea being that the vacuum creates virtual partial pairs that normally destroy each other, but instead of destroying each other one falls in to the black hole and one escapes, this would surely increase the mass of the black hole unless its always the anti matter particle that fall in.

The black hole has mass and therefore exerts a stronger pull on anti- matter than matter, that's how the overall mass of the black hole is speculated to decrease.

[sutty27]

The black hole has mass and therefore exerts a stronger pull on anti- matter than matter, that's how the overall mass of the black hole is speculated to decrease.

 

Why would it exert a stronger pull on anti- matter than matter?

 

Some physicists believe there's a repulsion between normal matter and anti matter and its this repulsion that is responsible for expansion of the universe, others say that antimatter will attract both matter and antimatter at the same rate that matter attracts matter.

 

Neither of these ideas would suggest that a black hole would attack the anti matter and repel the matter. If anything it would do the opposite, attract the matter and repel the antimatter.

Edited May 11, 2016 by sutty27

[stifflersmom]

Why would it exert a stronger pull on anti- matter than matter?

 

Some physicists believe there's a repulsion between normal matter and anti matter and its this repulsion that is responsible for expansion of the universe, others say that antimatter will attract both matter and antimatter at the same rate that matter attracts matter.

 

Neither of these ideas would suggest that a black hole would attack the anti matter and repel the matter. If anything it would do the opposite, attract the matter and repel the antimatter.

The charge effect (attractive) will be much stronger than gravity for matter/anti matter pair interactions. It must be a minority tof physicists that suggest a repulsive effect between them is responsible for universe expansion. The theoretical mass loss of black holes is well documented, although no direct proof exists as yet.The black hole phenomena and universe expansion are two completely separate things, I'm not sure why you're trying to link them.

[sutty27]

The charge effect (attractive) will be much stronger than gravity for matter/anti matter pair interactions. It must be a minority tof physicists that suggest a repulsive effect between them is responsible for universe expansion. The theoretical mass loss of black holes is well documented, although no direct proof exists as yet.The black hole phenomena and universe expansion are two completely separate things, I'm not sure why you're trying to link them.

 

OK lets assume that the anti matter particle is pulled into the black hole and annihilates one matter particle so making the black hole mass smaller. And we will assume that for some reason gravity doesn't pull the matter particle in so leaving it free in space. The result is that all the old matter in the black hole is replaced by new matter that is now free. These free particles being the basic building blocks of the universe.

 

 

If the centre of each Galaxy as a black hole that is capable of splitting these pairs of virtual particles pulling in the matter particle whilst repelling the anti matter particle, it leave free anti matter in the universe, if this anti matter attracts to other anti matter and is repelled by ordinary matter it would go some way towards explaining the expansion of the universe assuming that it is indeed expanding.

Edited May 12, 2016 by sutty27

[unbeliever]

Gravity would cause an increase in temperature and density not a decrease in temperature.

 

For now that is another unproven idea, what I don't understand about the idea is why its would reduce the mass of the black hole, the idea being that the vacuum creates virtual partial pairs that normally destroy each other, but instead of destroying each other one falls in to the black hole and one escapes, this would surely increase the mass of the black hole unless its always the anti matter particle that fall in.

 

It's rather complicated.

Firstly anti-matter has positive mass, not negative mass. Under normal circumstances when anti-matter falls into a black hole, it increases the mass of the black hole.

You might think that it ought to annihilate with what's already there but this is a black hole, so if there were an annihilation it would produce gamma rays with the same mass/energy as the matter and anti-matter particles annihilating which would also be trapped in the black hold and still increase the mass of the black hole.

 

The 2 particles being created are initially virtual. Neither has enough mass/energy to be a real particle. It doesn't matter which one is matter and which anti-matter. The loss of mass from the black hole doesn't come from the particle that falls in, rather mass is pinched from the black hole by the survivor and used to promote itself from a virtual particle to a real particle and escape. The net effect is that one real matter or anti-matter particle is emitted by the back hole reducing the mass of the black hole as it does so.

[sutty27]

It's rather complicated.

Firstly anti-matter has positive mass, not negative mass. Under normal circumstances when anti-matter falls into a black hole, it increases the mass of the black hole.

You might think that it ought to annihilate with what's already there but this is a black hole, so if there were an annihilation it would produce gamma rays with the same mass/energy as the matter and anti-matter particles annihilating which would also be trapped in the black hold and still increase the mass of the black hole.

 

So now we have a black hole increasing in mass so rather than shrinking its growing, does it grow indefinitely or does it at some point violently repel all it's matter and anti matter into space creating an ejection event that looks like the Big Bang.

 

 

The 2 particles being created are initially virtual. Neither has enough mass/energy to be a real particle. It doesn't matter which one is matter and which anti-matter. The loss of mass from the black hole doesn't come from the particle that falls in, rather mass is pinched from the black hole by the survivor and used to promote itself from a virtual particle to a real particle and escape. The net effect is that one real matter or anti-matter particle is emitted by the back hole reducing the mass of the black hole as it does so.

 

So we go right back several pages to my post about the black hole being a recycling mechanism that converts old matter back into the building blocks of the universe.