Black holes do not exist

[Write4U]

Is a black-hole a singularity or not ?

Define singularity.

Here's one;
https://en.wikipedia.org/wiki/Penrose–Hawking_singularity_theorems

 

[river]

Define singularity.

Here's one;
https://en.wikipedia.org/wiki/Penrose–Hawking_singularity_theorems

Unidirectional .

 

[Write4U]

Unidirectional .

AFAIK a black hole is a 3 dimensional object with a supermassive singularity at it's center.
As far as unidirectional seems true. Something goes in and doesn't come out again.....

Not once it is inside the black hole. But apparently not everything falls into a black hole. Hawking radiation occurs at the event horizon, where some energy manages to escape.

No, Black Holes Can't 'Burp.' But What They Do Instead Is Important

At the event horizon of a black hole, Stephen Hawking concluded, twinned pairs of particles and antiparticles swirl about in much the way they do elsewhere in the universe. But as a result of some complicated quantum hocus pocus, when one of the particles falls in, the other stays out, producing dim but detectable radiation.

https://time.com/4499557/black-hole-burp/

 

[river]

AFAIK a black hole is a 3 dimensional object with a supermassive singularity at it's center.
As far as unidirectional seems true. Something goes in and doesn't come out again.....

Highlighted

How so ? What is this 3 dimensional object of a black-hole ? Which at the same time is a supermassive singularity ? You realise this makes no sense .

 

[Dennis Tate]

Define singularity.

Here's one;
https://en.wikipedia.org/wiki/Penrose–Hawking_singularity_theorems

Wow!!!!

This is the easiest to understand description of this that I have ever read.

The Penrose–Hawking singularity theorems (after Roger Penrose and Stephen Hawking) are a set of results in general relativity that attempt to answer the question of when gravitation produces singularities. Penrose was awarded the Nobel Prize in Physics in 2020 "for the discovery that black hole formation is a robust prediction of the general theory of relativity", which he shared with Reinhard Genzel and Andrea Ghez.[1]



A singularity in solutions of the Einstein field equations is one of two things:

1. a situation where matter is forced to be compressed to a point (a space-like singularity)
2. a situation where certain light rays come from a region with infinite curvature (a time-like singularity)

Space-like singularities are a feature of non-rotating uncharged black holes as described by the Schwarzschild metric, while time-like singularities are those that occur in charged or rotating black hole exact solutions. Both of them have the property of geodesic incompleteness, in which either some light-path or some particle-path cannot be extended beyond a certain proper time or affine parameter (affine parameter being the null analog of proper time).

The Penrose theorem guarantees that some sort of geodesic incompleteness occurs inside any black hole whenever matter satisfies reasonable energy conditions. The energy condition required for the black-hole singularity theorem is weak: it says that light rays are always focused together by gravity, never drawn apart, and this holds whenever the energy of matter is non-negative.

 

[Write4U]

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How so ? What is this 3 dimensional object of a black-hole ? Which at the same time is a supermassive singularity ? You realise this makes no sense .

OK, simple explanation; a black hole appears the same when viewed from every angle, up, down, sideways. Regardless of the angle of observation, what you see is an enormous round black disk (the event horizon) with a tiny singularity (which you cannot see) sitting in its center.

Think of it like you would look at earth from every angle. It would appear a solid round 3 d object from every angle of observation with the core at its center, hidden from view.

If I am wrong, I welcome correction.

https://tomasflores.weebly.com/kerr-and-schwarzschild-black-holes.html

https://www.researchgate.net/figure...zons-and-the-ring-singulatrity_fig2_265603056

 

[river]

OK, simple explanation; a black hole appears the same when viewed from every angle, up, down, sideways. Regardless of the angle of observation, what you see is an enormous round black disk (the event horizon) with a tiny singularity (which you cannot see) sitting in its center.

Think of it like you would look at earth from every angle. It would appear a solid round 3 d object from every angle of observation with the core at its center, hidden from view.

If I am wrong, I welcome correction.

https://tomasflores.weebly.com/kerr-and-schwarzschild-black-holes.html

https://www.researchgate.net/figure...zons-and-the-ring-singulatrity_fig2_265603056

Yet this " enormous black disc " has not been observed , in reality . Show me a Photograph of this " enormous black disc " , by Telescopes , or Hubble . You won't find one .

 

[Write4U]

Yes you can.
Note that the black hole is somewhat obscured by the 3 D surrounding space, The image shown will look like this from every angle, and the closer you get the more defined the black disk becomes.

A view of the M87 supermassive black hole in polarised light. EHT Collaboration/ESO

The first picture of a black hole’s shadow just got even more interesting. The Event Horizon Telescope (EHT) collaboration released the first direct image of a black hole in 2019, and while the picture on its own was impressive, it wasn’t the scientific smorgasbord some had hoped for. Now, researchers have added polarised light to the picture, giving us an idea of how magnetic fields around a supermassive black hole create powerful jets of matter.

“It was not a lot of information about the actual physics of the gas around the black hole,” says Sara Issaoun, an EHT team member at Radboud University in the Netherlands. “Looking at it in polarised light told us information about the magnetic field of the black hole.”

The EHT uses a network of eight telescopes around the world to turn Earth into one giant radio telescope, which enabled an unprecedented view of the supermassive black hole at the centre of the M87 galaxy, 55 million light years away. The light that the EHT captures is emitted by electrons as they accelerate along magnetic fields, and the polarisation of the light depends on the direction of the magnetic field.

https://www.newscientist.com/articl...ack-hole-reveals-its-swirling-magnetic-field/

Here is an early video.

 

[river]

Yes you can.
Note that the black hole is somewhat obscured by the 3 D surrounding space, The image shown will look like this from every angle, and the closer you get the more defined the black disk becomes.

A view of the M87 supermassive black hole in polarised light. EHT Collaboration/ESO https://www.newscientist.com/articl...ack-hole-reveals-its-swirling-magnetic-field/

Here is an early video.

First photo . Is the swirling going away from the center , or into the center ?

 

[Write4U]

Not sure if this natural or doctored

 

[river]

Not sure if this natural or doctored

Watched the video .

Here is the thing Write4U . Gravity interpretation puzzles me since gravity waves moves away from the source not imploding inwards towards the source .

Black Holes are a mathematical invention , only . And not a possible physical reality .

 

[Write4U]

First photo . Is the swirling going away from the center , or into the center ?

Looks like these magnetic ripples are drawing toward the center and not flaring outward as in a spiral.

 

[Write4U]

Watched the video .

Here is the thing Write4U . Gravity interpretation puzzles me since gravity waves moves away from the source not imploding inwards towards the source .

Black Holes are a mathematical invention , only . And not a possible physical reality .

Where did these pictures come from? And what do they represent if not BH?

Whether you or I understand the phenomenon is irrelevant in view of scientific evidence.
You have to trust the science. It's about the only thing left that demands proof before it can be considered true.

 

[river]

river said: ↑
First photo . Is the swirling going away from the center , or into the center ?

Looks like these magnetic ripples are drawing toward the center and not flaring outward as in a spiral.

Why are these ripples , magnetic ?

 

[river]

Where did these pictures come from? And what do they represent if not BH?

Whether you or I understand the phenomenon is irrelevant in view of scientific evidence.
You have to trust the science. It's about the only thing left that demands proof before it can be considered true.

The Interpretation ,,,,,,,,Matters .

 

[Write4U]

The Interpretation ,,,,,,,,Matters .

Are you qualified to interpret evidence? I am not, but if there is one Interpretive profession I trust it is Science.
It is self-regulating and has been responsible for our understanding of the Universe and "how things work".

Science is the last bastion of seeking truth. The rest just seeks power, profit, and/or gratification.

 

[river]

In 1905 Einstein brought his theory of Realitivity . Brilliant thinking , at the time . Now though we think upon the Universe much differently .

 

[river]

river said: ↑
The Interpretation ,,,,,,,,Matters .

Are you qualified to interpret evidence? I am not, but if there is one Interpretive profession I trust it is Science.
It is self-regulating and has been responsible for our understanding of the Universe and "how things work".

Science is the last bastion of seeking truth. The rest just seeks power, profit, and/or gratification.

Highlighted

I'll leave that to the people .

Second Highlight

Of Course Science Is . I'm In .

People are having a hard time understanding me it seems .

 

[Write4U]

In 1905 Einstein brought his theory of Realitivity . Brilliant thinking , at the time . Now though we think upon the Universe much differently .

We're constantly improving, along with our development of ever more accurate measuring methods.

 

[river]

river said: ↑
In 1905 Einstein brought his theory of Realitivity . Brilliant thinking , at the time . Now though we think upon the Universe much differently .

We're constantly improving, along with our development of ever more accurate measuring methods.

Because of a better understanding of the Physical .