After Black holes, what are these White holes???

[Tipu7]

They may be just mirrors of each other.




Well the big bang itself may be the result of one big white hole

Nailed it ........

 

[Kashmiri Pandit]

You might not be but rest of Humanity is sure. All galaxies have black holes in its center and black holes have been confirmed to exist in universe through gravitational lensing.





They don't consume per se. That's a totally ignorant answer. By consume you are treating gravity as a force. Gravity as per "Theory of Relativity" is not a force but a curvature of space-time. So there is no sucking in.

Read on geodesics first. Light will travel a straight line because that's the smallest distance between two points on flat surface. However on curved geodesics the smallest distance may be a curve.

What the modern theory of gravity says is the curvature of space time around black holes are so twisted that light which follows a "SMALLEST DISTANCE RULE" on a geodesic has no possible way to come out. i.e. no such curves exist which comes out of the blackhole.

What it means is light is almost in an infinite loop inside a blackhole but it does exist. Just because it looks black doesn't mean it don't. It's just that things inside event horizon cannot be observed from any point in spacetime outside the horizon.
Black holes basically can be understood as all set of events in spacetime which cannot be located or ordered within our set of events in any way because of fucked up space time curvature
@Spectre @Kashmiri Pandit @applesauce @Slav Defence Your kind inputs please

Black Holes Vomit the things they suck , in the form of high intensity beam .

Does that mean Black Holes have a limit to what and how much they can suck in ?

Black Holes Suck even Light , So no way for Human eye to see it ?

Are Black Holes 2 dimensional tear in the Fabric of Cosmos or is it a 3 dimensional sphere ?

Do the massive explosion of a star , crushes the fabric within , leading to a path and hence another opening in Space ?

As per this Pic , Black Holes are 2D , with no depth ( or may be a 4th or 5th Dimension that we can't comprehend )

 

[ito]

They may be just mirrors of each other.




Well the big bang itself may be the result of one big white hole

You could be right. Again, a new theory based on Quantum mechanics discovered this year is making quite a bang. It says Universe has no beginning and there was no big bang. And surprisingly it is much better able to explain the evolution of the Universe than the big bang theory

No Big Bang? Quantum equation predicts universe has no beginning

 

[Sinnerman108]

I wish i had perused physics and mathematics rather than engineering

 

[farhan_9909]

Basically a singularity of anti-gravity.

There is still too much we do not know. There is much we still have no clue about Black Holes. There may be all kinds of structures behind their event horizon that we simply have no way of knowing right now. We simply say "Physics breaks down" in singularities.

What if black hole is formed near this solar system?will it engulf them?

I wish i had perused physics and mathematics rather than engineering

Astrophysics interest me alot and i get lot of criticism from my friends because i read about stars and the mars etc mission alot even during my exams

 

[Tipu7]

What if black hole is formed near this solar system?will it engulf them?

Depends upon size.
In General case it will ''surely'' engulf our solar system. A black hole of Size of family Car is more then enough to Eat entire Earth

What would happen if a black hole entered our Solar System? |

 

[Pulsar]

White holes are probably areas of anti matter.

 

[PakSword]

What would happen if a black hole and a while hole face each other?

One pulling other one pushing (like male and female). A kind of dance in the universe.

 

[Ghazwa e Hind]

This universe lies in the category of "Pehla Aasmaan" and our scientists believe that we are not able to discover even fractions of it by using our powerful telescopes. There are "Saat Aasmaan" which are described in Quran. And after that, there are other maqams (places). Heaven and Hell also exist way after those 7 aasmaan.

According to ulema e karam, pehla aasmaan is a big thing but it is just like a small ball in a large playground as compared to doosra aasman. And this sequence continues till 7 skies. 6th sky is like a small ball in a large playground as compared to 7th sky. And here, we are even unable to discover our milkyway galaxy. Millions of stars are present in this galaxy and trillions of galaxies are present in this universe.

We don't know what are the hidden secrets which Allah Kareem created in this universe!

 

[Skull and Bones]

i never heared about white hole...btw black hole consumed everything inside and what is inside still dont know...

It emits it as radio waves.

I wish i had perused physics and mathematics rather than engineering

That's the regret of every engineer, gladly I changed my career path to the borderline of physics and engineering.

 

[Nilgiri]

Black Holes Vomit the things they suck , in the form of high intensity beam .

A tiny fraction. Because of the X-ray and gamma ray generation form the accretion disk. The Black hole itself does not emit any (other than Hawking radiation...as far as we know/theorise).

Does that mean Black Holes have a limit to what and how much they can suck in ?

Complicated question. As far as we know there is no limit per se. But a blackhole's hawking radiation would increase the more matter is has sucked up (because the blackhole's own mass increases).

Black Holes Suck even Light , So no way for Human eye to see it ?

The blackhole itself cannot be seen. Only its effects on surrounding matter.

Are Black Holes 2 dimensional tear in the Fabric of Cosmos or is it a 3 dimensional sphere ?

They are multidimensional like everything else that exists. We of course can only perceive 4D.

Do the massive explosion of a star , crushes the fabric within , leading to a path and hence another opening in Space ?

You talking of a supernova? Yes this is one way a black hole can form.

As per this Pic , Black Holes are 2D , with no depth ( or may be a 4th or 5th Dimension that we can't comprehend )

Single source accretion disks can look planar. But the Blackhole is a 4D system (as far as we can perceive), if you put material all around it, it will look a lot more "3D" than that. Take the one at the center of our galaxy for instance.

 

[BDforever]

Wait, I know about Black holes, what are these White holes.....???

Sailors have their tales about krakens and about pirates and other stuff like that. Physicists have theories about white holes: cosmic monsters that overlap the line between tall tale and actuality. Yet to be seen in the space, white holes might be only mathematical giants. But according to recent research, if a speculative theory known as loop quantum gravity is true, white holes could be not just only real but we might have already observed them. A white whole is, somewhat, the reverse of a black hole. According to Caltech physicist Sean Carroll, a black hole is a region of space where you can enter but you can never escape due to its powerful gravitational pull; a white hole is a region where you choice of leaving but you can never go back. Otherwise both share precisely the similar mathematics, precisely the same geometry. That boils down to some vital features: a singularity, where mass is pressed into a point of infinite density, and have an event horizon, the unseen “point of no return” first defined mathematically by the German physicist Karl Schwarzschild in 1916. For a black hole, the event horizon symbolizes a one-way entry; for a white hole, it’s exit-only scenario.

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There is definite proof that black holes truly exist, and astrophysicists have a strong understanding of what it requires to make one. Visualize a white Hole is hard. One prospect comprises a spinning black hole. According to Einstein’s general theory of relativity, the rotation smudges the singularity into a circle, creating it imaginable in theory to travel through the spinning black hole without being crushed. General relativity’s equations propose that someone dropping into such a black hole might go through a tunnel in space-time called a wormhole and appear from a white hole that its matters into a different areas of space or even period of time.
Although mathematical answers to those equations exist for white holes, Andrew Hamilton, an astrophysicist at the University of Colorado at Boulder say “they’re does not exist in reality,” .That is because they define universes that comprise only black holes, white holes and wormholes—no matter, radiation or even energy. Certainly, earlier research, counting Hamilton’s, proposes that anything that falls into a rotating black hole will basically plug up the wormhole, avoiding the creation of a channel to a white hole.

Einstein’s General Relativity, from which Hamilton draws his calculations, breaks down at a singularity of a black hole. Stephen Hsu, a physicist at Michigan State University in East Lansing, says “The energy density and the curvature become so large that classical gravity is not a good description of what’s happening there. Maybe a more comprehensive model of gravity—one that works as well on the quantum level as it does on bulky ones—would disprove the variability and allow for white holes.”

Certainly, a unified theory that combines gravity and quantum mechanics is one of the holy grails of modern physics. Applying one such theory to black holes, theorists Hal Haggard and Carlo Rovelli of Aix-Marseille University in France have presented that black holes could transform into white holes via a quantum procedure. In July last year, they issued their work online.

Loop quantum gravity suggests that space-time is fabricated of fundamental construction blocks formed like loops. According to Haggard and Rovelli, the loops’ limited size stops a dying star from collapsing all the way down into a point of endless bulk, and the shrinking object recoils into a white hole instead.
The black-to-white transformation could resolve a nettlesome puzzle known as the black hole information paradox. The idea that information can be destroyed is abomination in physics, and general relativity states that anything, counting information, that drops into a black hole can never escape. It does not mean that s black holes only act as protected safes for any information they slurp up, but Stephen Hawking presented 40 years ago that black holes essentially evaporate with time. That directed to the alarming prospect that the information confined within black hole could be lost too, generating a discussion that rages to this day.


It is far from clear whether loop quantum gravity is an exact explanation of reality. The only sign we get of white holes might be in only models that we create in labs and kitchen sinks. But that’s okay. Just thinking about these theoretical cosmic creatures can advance physicists’ insight, even if the actual world is confused and not like those precise conditions. That’s the way in which white holes are very valuable for a physicists.


Are White Holes Real? | Physics-Astronomy

yea, later we will hear about rainbow hole.

 

[Nilgiri]

What if black hole is formed near this solar system?will it engulf them?

A blackhole needs to form from a super massive star after it goes supernova. There are no such contenders for thousands? of light years.

If we magically could form a black hole somewhere, its influence would depend on its size and distance from solar system. So you will need to define those first.

What would happen if a black hole and a while hole face each other?

One pulling other one pushing (like male and female). A kind of dance in the universe.

It would just be a source and a sink. Like a water tap leading to a sink.

White holes are probably areas of anti matter.

The nature of the matter does not matter since we are talking about space time curvature here.

As far as I see a white hole would be negatively curved spacetime.

 

[thesolar65]

I must confess that this is the first time I am reading about white-holes. But then I should have expected it because for every positive there's a negative in nature.
@thesolar65 -FYI

Some five year back my daughter who was a science student then pointed out to me as she was interested then. Alas she is going to be a lawyer after three years!!

 

[Oldman1]

According to Caltech physicist Sean Carroll, a black hole is a region of space where you can enter but you can never escape due to its powerful gravitational pull; a white hole is a region where you choice of leaving but you can never go back.

They way they saying it in this phrase its pretty much the same.

When I saw the title White Hole, I assumed its just something ejecting all things out not pulling them in.