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Author Topic: The possible dynamics of a white hole  (Read 1733 times)

Offline jeffreyH

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The possible dynamics of a white hole
« on: 09/04/2015 00:11:31 »
With a black hole, as it accumulates mass, the event horizon expands. Hawking radiation can cause evaporation and this should result in mass loss and a reduction in the event horizon over time. What happens in the case of a white hole? Matter can only be ejected from a white hole. While a black hole can stop light at its horizon it may be that a white hole's horizon is where the speed of light is reached and spacetime is then ejected along with the mass within it. Would this result in a shrinking or expanding horizon? What about radiation or one of a pair of particles out of the horizon? Does this reduce the mass of the cosmic bulk? What actually drives the expansion outwards?

This is my next project.


 

Offline Thebox

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Re: The possible dynamics of a white hole
« Reply #1 on: 09/04/2015 00:19:17 »
With a black hole, as it accumulates mass, the event horizon expands. Hawking radiation can cause evaporation and this should result in mass loss and a reduction in the event horizon over time. What happens in the case of a white hole? Matter can only be ejected from a white hole. While a black hole can stop light at its horizon it may be that a white hole's horizon is where the speed of light is reached and spacetime is then ejected along with the mass within it. Would this result in a shrinking or expanding horizon? What about radiation or one of a pair of particles out of the horizon? Does this reduce the mass of the cosmic bulk? What actually drives the expansion outwards?

This is my next project.

Is a black hole not just Psuedo ?  and not seen or observed?
 

Offline jeffreyH

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Re: The possible dynamics of a white hole
« Reply #2 on: 09/04/2015 00:56:43 »
Well we haven't seen one up close but there is plenty of evidence that a variety of dense objects exist. The ultimate dense object is a black hole.
 

Offline Thebox

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Re: The possible dynamics of a white hole
« Reply #3 on: 09/04/2015 01:08:51 »
Well we haven't seen one up close but there is plenty of evidence that a variety of dense objects exist. The ultimate dense object is a black hole.

If I recall correctly, black holes have not been directly observed to exist, so is a black hole technically not just manufactured propaganda with no evidential fact findings?

A unicorn of science?
 

Offline chiralSPO

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Re: The possible dynamics of a white hole
« Reply #4 on: 09/04/2015 01:28:01 »
box, box, box...

I haven't directly observed you, but I have enough indirect evidence to assert that there is an incredibly dense object which does not shed light on anything... (sorry, I had to)

Similarly, by observing the movements of stars at the center of our galaxy, we are able to assert that there is an incredibly dense (lots of mass in a small volume) region that does not emit light. Observations of radiation bursts also corroborate the notion of black holes existing.
 

Offline Thebox

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Re: The possible dynamics of a white hole
« Reply #5 on: 09/04/2015 01:36:36 »
box, box, box...

I haven't directly observed you, but I have enough indirect evidence to assert that there is an incredibly dense object which does not shed light on anything... (sorry, I had to)

Similarly, by observing the movements of stars at the center of our galaxy, we are able to assert that there is an incredibly dense (lots of mass in a small volume) region that does not emit light. Observations of radiation bursts also corroborate the notion of black holes existing.

How about a notion that the dense mass in a small volume is a black planet?  that is also a notion but that does not make it  true.   

So you really mean, we think there might be  a thing called a black hole but we are not 100% certain or have 100% facts that it really exists?
 

Offline chiralSPO

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Re: The possible dynamics of a white hole
« Reply #6 on: 09/04/2015 01:42:55 »
We are not 100% certain about anything. We have evidence. As more evidence is gathered, some theories are ultimately shown to be false, and better explanations are found, but no matters are completely settled. Ever. That does not mean that these theories are useless.
 

Offline Thebox

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Re: The possible dynamics of a white hole
« Reply #7 on: 09/04/2015 01:49:05 »
We are not 100% certain about anything. We have evidence. As more evidence is gathered, some theories are ultimately shown to be false, and better explanations are found, but no matters are completely settled. Ever. That does not mean that these theories are useless.

I would not call what science has to be evidence in regards to a speculation of black holes, a few bits of light in space could mean anything.  If I presented that picture science would say it was lens flare.  I see no real evidence of a lot of things in science, I see no difference to  Psuedo-science for some of it . 

It seems like sci-fi when you mention black holes , white holes, curvature of space.
 

Offline Colin2B

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Re: The possible dynamics of a white hole
« Reply #8 on: 09/04/2015 22:12:57 »
This is my next project.

What will your starting point be?
 

Offline jeffreyH

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Re: The possible dynamics of a white hole
« Reply #9 on: 09/04/2015 23:09:40 »
This is my next project.

What will your starting point be?

I am uncertain about the evolution of an horizon for a white hole. We could assume either an expanding or shrinking horizon but only the mathematics would give a valuable answer. It would be useful to find out what happens over time to the Hubble sphere as that is similar to what a white hole would be. Considering that as the size of a mass increases then its density exactly within the bounds of the horizon falls. How can we look at this feature in terms of the white hole?

EDIT: Would white holes be dark energy driven.
« Last Edit: 09/04/2015 23:11:51 by jeffreyH »
 

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Re: The possible dynamics of a white hole
« Reply #9 on: 09/04/2015 23:09:40 »

 

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