Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

How much space does a black hole take up?
Astronomy ^ | 27 Apr, 2020 | Caitlyn Buongiorno

Posted on 04/28/2020 9:25:53 PM PDT by MtnClimber

click here to read article


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-72 next last
To: servo1969

Good answer. But, if you really want to know how much space a black whole takes up ask Laz. He’d know.


41 posted on 04/29/2020 4:19:43 AM PDT by .44 Special (Tiamid Buacach!)
[ Post Reply | Private Reply | To 31 | View Replies]

To: MtnClimber
About the same as a white "hole",


42 posted on 04/29/2020 4:58:33 AM PDT by Bonemaker (invictus maneo)
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

July 2008 : “Black Hole” is racist per John Wiley Price (Dallas County Commissioner)

https://www.youtube.com/watch?v=oc1zGRUPztc


43 posted on 04/29/2020 5:08:28 AM PDT by DFG
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

Based on the No Hair Theorem a black hole has only three properties: mass, electrical charge and angular momentum. Diameter I assume is a function of the mass.


44 posted on 04/29/2020 5:11:52 AM PDT by C19fan
[ Post Reply | Private Reply | To 1 | View Replies]

To: BradyLS

Based on Hawking Radiation all black holes are losing mass over time although the process is very slow. An ping pong sized black would take 1.815951e+58 seconds to evaporate.


45 posted on 04/29/2020 5:16:51 AM PDT by C19fan
[ Post Reply | Private Reply | To 4 | View Replies]

To: C19fan

Our perspective in space-time is not the same as the perspective beyond the event horizon anyway.


46 posted on 04/29/2020 5:21:18 AM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 44 | View Replies]

To: MtnClimber

Do black holes actually exist or do cosmologists believe they exist? And because cosmologists believe they exist, they believe they see them. I think the existence of black holes is less likely than the existence of sasquatch/big foot.


47 posted on 04/29/2020 5:31:10 AM PDT by captain_dave
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber
"At the center of a black hole is believed to be an infinite gravitational well in the fabric of spacetime, called a gravitational singularity. This singularity is infinitely dense"

A singularity is a mathematical concept. Many things can be treated mathematically that are impossible in a physical world. It may be just fine to treat the 'gravitational well' as a singularity for mathematical calculations, but physically, an 'infinitely dense' material occupying zero space makes no sense.

This article is the first I have ever seen that actually estimates the real size of black holes. Most others treat them as "infinitely small". Whether something that's millions of light years away is the size of a golf ball, or or the size of the earth, or even infinitely small, is irrelevant for mathematical analysis. That doesn't make it zero size, though.

Is the 'gravitational well' a physical 'singularity'? I think not.

48 posted on 04/29/2020 5:41:06 AM PDT by norwaypinesavage (Calm down and enjoy the ride, great things are happening for our country)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BradyLS

It is. Our impression of “solid” is the result of the Pauli exclusion principle, that no two electrons can share the same state. But atoms are mostly empty space, mostly “nothing.” It takes tremendous force, and gravity does that, to cause the space inside an atom to be compressed.

Another thing is that on paper, that ping-pong ball or 2 mile sun-mass black hole is the event horizon, and not the size of the mass. If you get that close, you can never leave.


49 posted on 04/29/2020 5:46:20 AM PDT by Cboldt
[ Post Reply | Private Reply | To 4 | View Replies]

To: lee martell
Imponderables:

Did Adam & Eve have belly buttons?

If in a vehicle traveling at the speed of light, and turned the lights on would would it make a difference?

If you could run at the speed of sound, and screamed, could you hear it?

What is the speed of dark?

Have a great day!

50 posted on 04/29/2020 5:47:23 AM PDT by SERE_DOC ( The beauty of the Second Amendment is that it will not be needed until they try to take it. TJ)
[ Post Reply | Private Reply | To 9 | View Replies]

To: lee martell
You left off the question of the ages:
"How much wood would a woodchuck chuck ..."

(forgive me as I am suffering not from the Chinese virus but from Chinese virus promotion fatigue)

51 posted on 04/29/2020 5:50:48 AM PDT by glennaro (Dennis Prager: "Until It's Safe" means "Never")
[ Post Reply | Private Reply | To 9 | View Replies]

To: norwaypinesavage

The first or one of the early Hidden in Plain Sight books postulates that gravity is not exactly the equation we use now, the equation that results in a “singularity.”

It postulates that at extreme levels, gravity “balances,” pushes back on itself, and that the mass of a black hole is not concentrated at a point, but is (for want of a better visual image) a hollow sphere at the event horizon.


52 posted on 04/29/2020 5:52:32 AM PDT by Cboldt
[ Post Reply | Private Reply | To 48 | View Replies]

To: MtnClimber

Reading this really blows your hair back. We are so tiny and inconsequential in the scheme of the universe.


53 posted on 04/29/2020 5:56:48 AM PDT by JerseyDvl ("If you're going through hell, keep going.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: JerseyDvl

It makes me believe that the power of God is beyond our comprehension.


54 posted on 04/29/2020 6:04:03 AM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 53 | View Replies]

To: Cboldt

There is also the possibility that the collapse does cause the mass to be compressed to zero size. There may be another type of degeneracy (something like the Pauli exclusion principle) that prevents the matter from being compressed to zero size.


55 posted on 04/29/2020 6:25:44 AM PDT by 17th Miss Regt
[ Post Reply | Private Reply | To 52 | View Replies]

To: 17th Miss Regt
There is also the possibility that the collapse does cause the mass to be compressed to zero size.

Oops!

There is also the possibility that the collapse does not cause the mass to be compressed to zero size.

56 posted on 04/29/2020 6:26:48 AM PDT by 17th Miss Regt
[ Post Reply | Private Reply | To 55 | View Replies]

To: MtnClimber
What came first: Galaxies or Black Holes?

Are Black Holes what forms Galxies due to gravitational pull?

57 posted on 04/29/2020 7:32:01 AM PDT by Deaf Smith (When a Texan takes his chances, chances will be taken that's fore sure)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

*ping*


58 posted on 04/29/2020 8:33:17 AM PDT by fieldmarshaldj (Dear Mr. Kotter, #Epsteindidntkillhimself - Signed, Epstein's Mother)
[ Post Reply | Private Reply | To 1 | View Replies]

To: glennaro

..Only to be eclipsed by the old cartoon commercial
where the little boy asks a Wise Owl
“How many licks does it take to finish a Tootsie Pop?”
One....Two....THREE....::CHOmP!:
Answer: Three bites.


59 posted on 04/29/2020 8:46:53 AM PDT by lee martell
[ Post Reply | Private Reply | To 51 | View Replies]

To: MtnClimber
hese monsters grow to truly astronomical sizes, reaching mindboggling weights.

I can't believe a publication that calls itself "Astronomy" permitted this sentence.

60 posted on 04/29/2020 9:28:24 AM PDT by Sirius Lee (They are openly stating that they intend to murder us. Prep if you want to live.)
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-72 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson