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/sci/ - Science & Math

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9743982 No.9743982 [Reply] [Original]

>black holes are infinitesimally small points
>"...a "supermassive" black hole..."

>> No.9744061

>>9743982
The singularity (point where the curvature of spacetime becomes infinite) is just a mathematical point. Or maybe the size of the Planck length.

But the circumference of the Event Horizon (point of no return) is proportional to the mass within the horizon. That's usually considered to be the "surface" of the BH even though there's nothing there and no way to detect you've fallen through it with only "local" measurements.

>> No.9744076

>>9743982
It's just our current predictions say, a theory of quantum gravity could change this.

>> No.9744118

>>9743982
Stop reading pop sci you brainlet

>> No.9744126

if space-time was a rubber sheet, a black hole would be when something indents the sheet so much that it wraps around the thing and pinches off right?

>> No.9744128

>supermassive

>super
>massive

>super
>MASS
>ive


>hurrdurr no volume

>> No.9745026

saying 'infinitesimally small point' is like saying 'spherical sphere' or 'quadratic quadrat'…

>> No.9745039

>>9744126
It doesn't pinch off.
After all, you can still fall in.
Relativity allows spacetime to be bent and stretched but you can't "cut" the rubber sheet.

>> No.9745041

>>9743982
>small volumes can't be massive
>What is density

>> No.9745072

>>9743982
It's not a supervoluminous black hole you dumb frog

>> No.9745210
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9745210

>>9743982

The more mass it has the larger the area in which light can't escape becomes. A larger black hole will look like a larger ball of black.

>> No.9745221

>>9743982
look up the definition of mass you retard

>> No.9745469
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9745469

>>9745221
>>9745210
>>9745072
>>9745041
>>9745026
>>9744128
>>9744118
>>9744076
>>9744061
>it is this easy to b8 /sci/
All of you are brainlets

>> No.9745635

>>9745469
Pepe threads are bait threads by definition. This should be well known by now.

>> No.9745645

>>9745635
yet a lot of frogposters are actually serious

>> No.9747530

>>9745469
>not being here to waste time