/sci/ - Science & Math

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Anonymous Sat Sep 23 10:36:52 2017 No.9186266 [Reply] [Original]

Are singularities real? Is it actually possible for there to be an infinitely small point in space with the mass of multiple stars?

>>	<3 !KuriSUuOwg Sat Sep 23 10:45:07 2017 No.9186278 >>9186266 Yes, but the point would only be infinitesimally small in 3D space. It would be a really long "funnel" in 4D space-time.

>>	Anonymous Sat Sep 23 10:46:31 2017 No.9186280 >>9186278 why would different singularities have different masses if they are equal in size and density?

>>	Anonymous Sat Sep 23 10:52:51 2017 No.9186287 >>9186280 because each one has started with and accumulated (from its surroundings) a different amount of mass

<3 !KuriSUuOwg Sat Sep 23 10:57:34 2017 No.9186295

>>9186280
Not exactly sure, but more massive black holes have a larger event horizon.
I don't know how this affects the internal geometrical/physical properties of the black hole, I think the more massive the black hole, the singularity is further away in the past.

>>	<3 !KuriSUuOwg Sat Sep 23 10:58:53 2017 No.9186298 >>9186295 I meant future.

>>	Anonymous Sat Sep 23 10:59:07 2017 No.9186300 >>9186287 that doesn't answer the question though

>>	Anonymous Sat Sep 23 11:19:34 2017 No.9186336 >using continuous mathematics to model discrete objects when will physics brainlets learn....

>>	Anonymous Sat Sep 23 11:23:59 2017 No.9186343 >>9186300 see >>9186298 At least black hole is not a point. If you approach event horizon, time dilation becomes approaches infinity, so under event horizon time doesn't pass relative to external observer, so falling matter doesn't reach the center.

>>	Anonymous Sat Sep 23 11:30:37 2017 No.9186351 >>9186336 This GR should be scratched for holding back physics.

>>	Anonymous Sat Sep 23 11:41:05 2017 No.9186359 >>9186343 >time dilation becomes approaches infinity [citation needed]

>>	Anonymous Sat Sep 23 11:47:10 2017 No.9186367 >>9186359 https://en.wikipedia.org/wiki/Gravitational_time_dilation#Important_features_of_gravitational_time_dilation

>>	Anonymous Sat Sep 23 12:10:42 2017 No.9186390 >>9186266 In order to really discuss singularities, we at least need a proper theory of quantum gravity, which we don't really have yet.

>>	Anonymous Sat Sep 23 17:23:02 2017 No.9187027 >>9186367 How close would a person have to be to an event horizon to experience significant time dilation?

>>	None !niqjediPCA Sun Sep 24 06:45:21 2017 No.9188059 >>9186266 >Is it actually possible for there to be an infinitely small point in space with the mass of multiple stars? No, but on MATH it is!

>>	Anonymous Sun Sep 24 07:05:32 2017 No.9188069 >>9186266 How can singularities be real if our eyes aren't real?

>>	Anonymous Sun Sep 24 07:09:20 2017 No.9188074 File: 170 KB, 396x388, 1472474521082.png [View same] [iqdb] [saucenao] [google] >>9186336 t. wildberger

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