Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Dangerous 'naked' black holes could be hiding in the universe
https://www.livescience.com ^ | 12/13/2020 | By Paul Sutter - Astrophysicist

Posted on 12/13/2020 7:08:24 PM PST by RomanSoldier19

Black holes are regions of infinite density, known as a singularity. And according to mainstream physics, each of these cosmic matter munchers is fringed by an event horizon –- a boundary where once you fall in, you never come out.

But what if some black holes are naked — completely lacking such frontiers? As far as we can tell, singularities are always wrapped in event horizons, but a more detailed look at the math of general relativity suggests that doesn't have to be the case.

If such naked black holes dot the universe, new research reveals how we might be able to detect one: by looking at the ring of light surrounding it.

'The Emperor Has No Clothes' Black holes are a consequence of the mathematics of Einstein's theory of general relativity. Those equations tell us that if a clump of matter collapses on itself into too small of a volume, the gravity of that matter will just keep shrinking it ever smaller until it crushes into an infinitely tiny point. That point is called a singularity, and it's a signal that the math we're using to describe spacetime is completely breaking down.

The gravitational pull of a singularity is infinitely strong. Objects can be pulled toward the singularity faster than the speed of light. Near a singularity, the physics of general relativity can no longer predict the future trajectory of particles — which is one of the main points of physics. Without the power to make predictions, physics falls apart.

(Excerpt) Read more at livescience.com ...


TOPICS: News/Current Events
KEYWORDS: black; blackhole; holes; physics
Navigation: use the links below to view more comments.
first previous 1-2021-4041 next last
To: AnotherUnixGeek

21 posted on 12/13/2020 8:14:59 PM PST by RomanSoldier19 (Game over, man! Game over! ; : rem ad triarios redisse is)
[ Post Reply | Private Reply | To 19 | View Replies]

To: RomanSoldier19; Fred Nerks
I opened my old steamer trunk, and there it was.


22 posted on 12/13/2020 8:16:34 PM PST by Candor7 ((Obama Fascism:http://www.americanthinker.com/2009/05/barack_obama_the_quintessentia_1.html) )
[ Post Reply | Private Reply | To 1 | View Replies]

To: bobby.223

ROFL


23 posted on 12/13/2020 8:18:06 PM PST by Patriot Babe
[ Post Reply | Private Reply | To 16 | View Replies]

To: AnotherUnixGeek
Light is just a photon.

It has no mass from what I under stand.

It is just electromagnetic energy.

24 posted on 12/13/2020 8:18:43 PM PST by Deaf Smith (When a Texan takes his chances, chances will be takfor sthe ure)
[ Post Reply | Private Reply | To 19 | View Replies]

To: BenLurkin

Post of the day. A+


25 posted on 12/13/2020 8:26:59 PM PST by Spirochete
[ Post Reply | Private Reply | To 6 | View Replies]

To: RomanSoldier19
Dangerous?
26 posted on 12/13/2020 8:27:01 PM PST by vigilante2 (It's systemic election fraud. Release the Kraken)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Deaf Smith
> (When a Texan takes his chances, chances will be takfor sthe ure)

I think your tagline got Biden-ified. Or maybe it's Biden-ated.

27 posted on 12/13/2020 8:45:09 PM PST by dayglored ("Listen. Strange women lying in ponds distributing swords is no basis for a system of government."`)
[ Post Reply | Private Reply | To 24 | View Replies]

To: dayglored

My tagline drifts every few days for some reason


28 posted on 12/13/2020 8:54:23 PM PST by Deaf Smith (When a Texan takes his chances, chances will be taken that's for sure.)
[ Post Reply | Private Reply | To 27 | View Replies]

To: RomanSoldier19

This is a strange definition of dangerous. I’m more worried about getting struck by lightning.


29 posted on 12/13/2020 8:55:37 PM PST by ArcadeQuarters (Socialism requires slavery.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: RomanSoldier19

Who thought the Universe could be so sexy?


30 posted on 12/13/2020 9:37:17 PM PST by Huskrrrr
[ Post Reply | Private Reply | To 1 | View Replies]

To: RomanSoldier19

Dangerous ‘naked’ black holes could be hiding in the universe

AKA Florida Man Black Holes


31 posted on 12/13/2020 9:39:39 PM PST by Flick Lives (#resist)
[ Post Reply | Private Reply | To 1 | View Replies]

To: RomanSoldier19

[When gas and dust fall onto a dense, compact object, that material flattens into a disk before funneling all the way down. When gas and dust fall onto a dense, compact object, that material flattens into a disk before funneling all the way down.]

As I understand it accretion disks are made mostly of matter which has “radiated” out of a spinning black hole. The “inner” event horizon grows at the equator, and becomes an elipsoid. Where the inner horizon crosses the outer horizon particles form randomly because of heat radiation. The physics of heat radiation in relativistic environments changes to allow matter to radiate. Most of the resulting particles fall back into the singularity, but the particles traveling outward at the speed of light stay in our universe.


32 posted on 12/13/2020 9:45:19 PM PST by nagant
[ Post Reply | Private Reply | To 1 | View Replies]

To: nagant

Thank thermodynamics law.


33 posted on 12/13/2020 9:47:52 PM PST by nagant
[ Post Reply | Private Reply | To 32 | View Replies]

To: ArcadeQuarters

More dangerous is the naked arsehole who could be hiding in the White House soon.


34 posted on 12/13/2020 9:51:14 PM PST by miserare ( Respect for life--life of all kinds-- is the first principle of civilization.~~A. Schweitzer.)
[ Post Reply | Private Reply | To 29 | View Replies]

To: RomanSoldier19
Black holes are regions of infinite density, known as a singularity.

All models are wrong; some are useful. While infinities are common in the abstract world of math, no infinities actually exist in the real world. When a math model hits an infinity, it has gone off the rails and ceased being useful.

As a black hole grows in size, its density decreases. There are super massive black holes with a mass density less than water.

35 posted on 12/13/2020 10:35:52 PM PST by Reeses (A journey of a thousand miles begins with a government pat down.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: RomanSoldier19

Kamila Hairass?


36 posted on 12/13/2020 10:37:34 PM PST by Beagle8U ("Chris Wallace comes from the shallow end of the press pool.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: Deaf Smith

Light is just a photon.
It has no mass from what I under stand.
It is just electromagnetic energy.”

Duality. Light is zero mass as waveform.
Photons are particles that have relativistic mass.


37 posted on 12/13/2020 10:56:20 PM PST by apostoli (The only cotton they ever picked was out of an aspirin bottle.)
[ Post Reply | Private Reply | To 24 | View Replies]

To: Trumpet 1
I though the speed of light was a constant and was as fast as any thing could travel.

Mathematically you can travel faster than the speed of light. Einsteins equations permit it. It is just that you can't travel AT the speed of light , and there is the rub.

38 posted on 12/14/2020 1:03:23 AM PST by TheCipher (To my mind Judas Iscariot was nothing but a low, mean, premature Congressman. - Mark Twain)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Deaf Smith

I do NOT want to see Michelle Obama “nekked” here on earth or anywhere in any universe.


39 posted on 12/14/2020 1:42:38 AM PST by MadMax, the Grinning Reaper
[ Post Reply | Private Reply | To 4 | View Replies]

To: Deaf Smith

#15. If you were Long Dong Silver, having “objects pulled into the hole in a straight line” would definitely happen.

Said with a grin and sarcasm.


40 posted on 12/14/2020 1:44:15 AM PST by MadMax, the Grinning Reaper
[ Post Reply | Private Reply | To 15 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041 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
News/Activism
Topics · Post Article

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