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Eldar Black Holes

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Re: Eldar Black Holes

#41

Post by yaks_hairbrush »

garmaine wrote: post #10
LoSboccacc wrote: post #4

Wonder if they also explored the possibility that we are in a black hole and the universe structure is recursive. Maybe the background radiation is the part of the hawking radiation that falls inward. And we perceive it infinite but it’s the dilatated space between the hevent horizon and the naked singularity at the center. And the big bang was the supernova that left the black hole. Trippinng!

We are in a black hole. The event horizon of the entire universe is on the same order as the observable universe. We are inside the black hole of the universe.

There a germ of the right idea here, but our universe is really more of a black hole backwards. Within the event horizon of a black hole, the singularity is always in the future. Within our universe, we see a singularity in our past.

In short, our universe looks more like a white hole than a black hole.

Re: Eldar Black Holes

#42

Post by liardiary »

pwaai wrote: post #32
grondilu wrote: post #8

There is a fascinating PBS Space Time video[1] about black holes that questions the very existence of whatever is "inside" a black hole. They point out that as you approach a black hole, your proper time is advancing slower and slower when compared to an observer located far away from the black hole (like us, on Earth). That means that from the point of view of this far observer, nothing happens inside a black hole u…

> https://www.youtube.com/watch?v=vNaEBbFbvcY This is mind blowing...shatters my misconception of blackholes....is there any more books on this?

Black holes and time warps by Kip Thorne. Great book and great guy.

Re: Eldar Black Holes

#43

Post by Quiark »

pwaai wrote: post #32
grondilu wrote: post #8

There is a fascinating PBS Space Time video[1] about black holes that questions the very existence of whatever is "inside" a black hole. They point out that as you approach a black hole, your proper time is advancing slower and slower when compared to an observer located far away from the black hole (like us, on Earth). That means that from the point of view of this far observer, nothing happens inside a black hole u…

> https://www.youtube.com/watch?v=vNaEBbFbvcY This is mind blowing...shatters my misconception of blackholes....is there any more books on this?

The most updated book I read was The Science of Interstellar by Kip Thorne

Re: Eldar Black Holes

#44

Post by JonnyNova »

krapp wrote: post #26
pwaai wrote: post #15

what if our universe is expanding because there are other bubbles of universes that pull in all directions? what if Buddha was right in that there are thousand fold universe systems each with their own unique civilizations? If there are blackholes older than the universe itself, what if that suggested the universe was cyclical and that we may be in some gazillion-th iteration? what if big bang was just a universe eve…

>What about the strange UFO occurences that pentagon acknowledged, are we getting visits from aliens within our universe or from another universe? The Pentagon has never acknowledged the existence of extraterrestrial craft, or of UFOs as being anything but hoaxes and misidentified, mundane phenomena. >but how could Buddha have known that blackholes existed? He didn't, any more than the Norse knew that wormholes exist…

The US government hasn't acknowledge the existence of aliens, but in 2016 the CIA admitted to funding programs because they suspected the existence of aliens. It is very hard to find a good source to link though due to terrible SNR when you google "cia aliens"

Re: Eldar Black Holes

#45

Post by jcadam »

Reminds me a bit of the old short story The Crystal Spheres. In that universe, once a civilization had attained a certain level of advancement, they intentionally migrated to a black hole to await the arrival of others (the idea being that all advanced civilizations in the universe were separated by so much time, that they suffered from a sort of loneliness).

https://en.wikipedia.org/wiki/The_Crystal_Spheres

Re: Eldar Black Holes

#46

Post by cratermoon »

wcarss wrote: post #18
grondilu wrote: post #8

There is a fascinating PBS Space Time video[1] about black holes that questions the very existence of whatever is "inside" a black hole. They point out that as you approach a black hole, your proper time is advancing slower and slower when compared to an observer located far away from the black hole (like us, on Earth). That means that from the point of view of this far observer, nothing happens inside a black hole u…

off-topic a bit: does anyone have suggestions for paths for the layperson toward being able to reason and intuit about this stuff at one level beyond pop physics claptrap? I have heard "the theoretical minimum" suggested in the past, but I haven't heard from anyone who has actually used it to go from zero to say, general relativity, only people who think it sounds good. It also seems like a steep investment -- I just…

This was referenced recently here on HN: https://physicstravelguide.com/start

It's incomplete but there's some good stuff there.

Re: Eldar Black Holes

#47

Post by jepler »

analog31 wrote: post #40
grondilu wrote: post #8

There is a fascinating PBS Space Time video[1] about black holes that questions the very existence of whatever is "inside" a black hole. They point out that as you approach a black hole, your proper time is advancing slower and slower when compared to an observer located far away from the black hole (like us, on Earth). That means that from the point of view of this far observer, nothing happens inside a black hole u…

Here's something I've wondered about black holes, related to what's inside. Simplistically, there must be mass inside, i.e., every black hole has a mass that can somehow be measured, e.g., by orbital velocities of satellites. And the mass-energy has to equal the mass-energy that has fallen in. So far so good. But the stuff that falls in is not purely described by its mass. It also has angular momentum, electrical cha…

It sounds like your line of thinking leads to the https://en.wikipedia.org/wiki/Black_hole_information_paradox

Re: Eldar Black Holes

#49

Post by alde »

analog31 wrote: post #40
grondilu wrote: post #8

There is a fascinating PBS Space Time video[1] about black holes that questions the very existence of whatever is "inside" a black hole. They point out that as you approach a black hole, your proper time is advancing slower and slower when compared to an observer located far away from the black hole (like us, on Earth). That means that from the point of view of this far observer, nothing happens inside a black hole u…

Here's something I've wondered about black holes, related to what's inside. Simplistically, there must be mass inside, i.e., every black hole has a mass that can somehow be measured, e.g., by orbital velocities of satellites. And the mass-energy has to equal the mass-energy that has fallen in. So far so good. But the stuff that falls in is not purely described by its mass. It also has angular momentum, electrical cha…

You have almost formulated the no-hair theorem. https://en.wikipedia.org/wiki/No-hair_theorem

Re: Eldar Black Holes

#50

Post by amelius »

fao_ wrote: post #25
wcarss wrote: post #18

Earlier quoted context omitted.

off-topic a bit: does anyone have suggestions for paths for the layperson toward being able to reason and intuit about this stuff at one level beyond pop physics claptrap? I have heard "the theoretical minimum" suggested in the past, but I haven't heard from anyone who has actually used it to go from zero to say, general relativity, only people who think it sounds good. It also seems like a steep investment -- I just…

Feynman's lectures of physics are good for layman explanations, however they quickly feel lacking without the maths background, which you can fill in with The Theoretical Minimum. There's actually a video lecture series of the Theoretical Minimum series that you might find more approachable, that is if you haven't heard of it: https://www.youtube.com/view_play_list?p=189C0DCE90CB6D81 (Here for the general relativity…

A small note. The "Theoretical Minimum" is not just a book, it's also a website with video lectures for the complete material.

See: http://theoreticalminimum.com/courses

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