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/sci/ - Science & Math

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5669946 No.5669946 [Reply] [Original]

How can we be sure that black holes really exist in space ?

>> No.5669947

By observing their effects in space.

>> No.5670054

>>5669946
the data gathered so far indicates the existence of something that matches the model of a blackhole. We're not yet 100%sure

>> No.5670064

Silly question but, are there black holes in the current observable universe that have not been discovered yet OR are there black holes in the universe but aren't even potentially observable yet ?

>> No.5670068

>>5670064
Most likely.

We only notice black holes by observing the behavior of things around them, i.e. things wobbling or orbiting around something invisible.

If a black hole isn't part of a system, we don't get any indications of its existence.

>> No.5670070

>>5669946
if you can put your dick in it's a hole

>> No.5670104
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5670104

>>5669946
I am sure black holes don't exist. I read Dirac's General Relativity and he says it clearly. Black Holes take infinite time to form because of gravitational time dilation.
We do detect objects that look like the next closest thing to a black hole. They bend light with very powerful gravitational fields and emit x-ray radiation different than a neutron star.

>> No.5670112

>>5670104
>continuing
A proper black hole would never be able to disperse by General Relativity. By Dirac's description you could disperse such objects by inputing as much energy as it dispersed to form. Although that would be a cosmic feat, some natural events could do it, like a very powerful cosmic collision.

>> No.5670204
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5670204

gravitational lensing.

/thread

>> No.5670227

>>5670104
A singularity may collapse for ever but the event horizon will form in a finite fine. Black holes can for in finite times.

>> No.5670270

>>5669946
Something curves light out there

>> No.5670298

>>5669946
>How can we be sure?
Epistemological presupposition detected! Stop interfering with my reality! Check your privilege!

>> No.5670305
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5670305

What are these stars orbiting around OP?

The only possible answer is a black hole

>> No.5670969

Now class this thread is a good example of two types of wrong.

>>5670104
This individual is asserting that black holes don't exist. His evidence is that they take infinite time to form. This is untrue even according to the cited theory.

>>5670305
This individual makes the opposite assertion that Black holes do exist. His argument contains a logical fallacy that there is only one possible solution when all known astrophysical causations have been explored.

>> No.5671206

>>5670969

now children, we pick the best answer of known possibilities instead of making up fairy tales with no basis. See me after class anon

>> No.5671211

>>5670305
Why isn't the "black hole" moving?

>> No.5671218

>>5671211
That's like asking why isn't the sun moving when the planets go around it. It is technically moving but it is just so much more massive that you do not notice it.

>> No.5671216

>>5670227
good post.. bad english

>> No.5671233
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5671233

>>5669946
>>5669946
Will the threads about: "divide by 0" , "0.99999 =1"
, "Shit ass programming and computer science", "shit ass psychology is a science, so is biology, so is programming", "infinite chocolate", "FUCKING BLACK HOLES" , "Are we alone in the universe" , "God's existence" ,
"random image of our sun next to other stars followed by - do you feel small now? - "
To math fucking posters: dont you fucking dare to knowshit about math when you just come up with random vague answers to everything about math posted on /sci mostly being wiki shit; you're an undergraduate you know shit.
To the physics: "DONT YOU FUCKING DARE ASK YOURSELF ABOUT FUCKING HOW THE UNIVERSE WORKS, BLACK HOLES, QUANTUM WORLD IF YOU CANT HANDLE THE MATH AND HAVENT DONE IT YET. FUCKING LAME ASS KIDS THINK THEY'RE SO SMART BECAUSE THEY CAN WRITE AN EQUATION OR TWO BUT CANT THINK OF A WAY ON THEIR OWN ON HOW TO SOLVE IT. FUCKING DISCOVERY/NAT GEO EDUCATED WANNABE SMARTASSES.

Do the math.Nothing else matters but the math. So stop posting shit.

>> No.5671246
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5671246

>>5671233
what u gonna do about it?

>> No.5671242

How do we know that dark matter isn't just black holes?

>> No.5671253
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5671253

>>5671246
your mom's fat bottom

>> No.5671274

>>5671242
good question.

>> No.5671397

>>5671253
Ha
HAHaahahaha