Generating Energy from Black Holes: Reachable or Not?

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Discussion Overview

The discussion revolves around the concept of generating energy from black holes, exploring whether this idea, often considered science fiction, is achievable. Participants examine theoretical aspects, potential mechanisms, and the implications of black hole physics, including quantum mechanics and Hawking radiation.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants express skepticism about the feasibility of generating energy from black holes, questioning the scientific basis of such claims.
  • One participant references an article discussing the annihilation of matter at the event horizon, suggesting it could convert into energy, though this claim is challenged by others.
  • A later reply introduces the concept of Hawking radiation, proposing that particles can escape a black hole under certain conditions, potentially serving as an energy source.
  • Another participant discusses the idea of using the gravitational pull of a black hole to convert potential energy into usable energy, referencing a sidebar from the article they read.
  • Concerns about clarity and coherence in the discussion are raised, with suggestions to focus on narrower topics to avoid confusion.
  • A question is posed regarding the detectability of a charged black hole from outside its event horizon, highlighting uncertainties about the relationship between charge and gravitational effects.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility of generating energy from black holes. Multiple competing views are presented, with some arguing against the possibility while others explore theoretical mechanisms that could allow for energy extraction.

Contextual Notes

There are limitations in the discussion, including unclear assumptions about the nature of energy generation from black holes and the dependence on interpretations of quantum mechanics and black hole physics. Some mathematical steps and definitions remain unresolved.

ALYAZAN
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peace upon u ..

though it's a fantasy but it's a scientific one ..

i've read about the generating energy from black holes

the issue that: is such an extreme science fiction reachable ??

no doubt that wireless connection was a science fiction once upon the time .. but there was a hidden method to reach it ..

now about black holes .. we have no 100% ensured information about conditions around black holes and even - in the first step - no method to reach a place nearby a black hole i mean no mean of transportation ...


do u think it's reachable ...

best wishes
 
Last edited:
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ALYAZAN said:
peace upon u ..

though it's a fantasy but it's a scientific one ..

i've read about the generating energy from black holes

http://www.cosmosmagazine.com/node/1693

the issue that: is such an extreme science fiction reachable ??

What "science fiction"?

Note that this isn't about "generating energy from black holes". It is about figuring out the source of the ultra-high energy cosmic particle, i.e. where they come from. "Generating energy" implies something that one could tap and use. There's nothing even remotely like that implied at all in the Auger result.

So your connection with "science fiction" here is very puzzling.

Zz.
 
Last edited by a moderator:
ZapperZ said:
What "science fiction"?

Note that this isn't about "generating energy from black holes". It is about figuring out the source of the ultra-high energy cosmic particle, i.e. where they come from. "Generating energy" implies something that one could tap and use. There's nothing even remotely like that implied at all in the Auger result.

So your connection with "science fiction" here is very puzzling.

Zz.

oh my God !

i was reading this while i was posting this thread ..
it reminded me with an article i read in the scientific american (the arabic version) it was about energies ... but a part of it was about black holes energy ...

that matter annihilates when it reaches the events horizon .. and convetrs into energy .. so there was an idea of generating energy from this fenomenon
 
ALYAZAN said:
that matter annihilates when it reaches the events horizon .. and convetrs into energy .. so there was an idea of generating energy from this fenomenon

This doesn't happen.
 
Nabeshin said:
This doesn't happen.

that's what i understod from what i read ...

anyway it's good not to stay believing in a wrong thing ... what happens ??

thank you
 
Maybe there is a language issue here, but your posts (and this whole thread) have been very confusing.

If language is such a case, then may I suggest that from now on, to avoid such confusion, stick to just one narrow topic at a time when posting in a thread or a post. This thread, for example, is going so fast in many different directions, no event horizon can even contain it.

Zz.
 
I'm going to take a guess (this may not be correct) at what the article was saying, which should clear this up:

As per quantum mechanics particles are constantly popping in and out of existence. A pair of particles and anti-particles come into being but then annihilate very quickly after forming. However, just occasionally they pop into existence with one inside the event horizon of a BH and one on the outside. In this circumstance, the particles cannot annihilate and one escapes at a cost of the mass of the BH (energy must be conserved). In a sense then, these particles (called hawking radiation) could be used somehow as an energy source.
 
ZapperZ said:
Maybe there is a language issue here, but your posts (and this whole thread) have been very confusing.

If language is such a case, then may I suggest that from now on, to avoid such confusion, stick to just one narrow topic at a time when posting in a thread or a post. This thread,
Zz.

mm .. i think u r right .. thanks for ur advice

ZapperZ said:
for example, is going so fast in many different directions, no event horizon can even contain it.
.

lol :smile: no wonder .. profesional cosmologist
 
  • #10
Nabeshin said:
I'm going to take a guess (this may not be correct) at what the article was saying, which should clear this up:

As per quantum mechanics particles are constantly popping in and out of existence. A pair of particles and anti-particles come into being but then annihilate very quickly after forming. However, just occasionally they pop into existence with one inside the event horizon of a BH and one on the outside. In this circumstance, the particles cannot annihilate and one escapes at a cost of the mass of the BH (energy must be conserved). In a sense then, these particles (called hawking radiation) could be used somehow as an energy source.

in the article (the one i read) there is a little sidebar about science fiction energies .. one of them was colliding matter and anti matter .. and the other was to put a mass near a black hole so that the black hole attractes it .. and as energy is conserved then the potetial energy of the mas must be transferable to another form of energy that we can use !

that's what the i read .. but i forgot it and so i was talking about annihilation that don't happen ...

forgive my forget !

best wishes ..
 
  • #11
I have a question of the charge of the black hole (BH). If a BH is positively charged, then can we detect it from outside ? Maybe the the strong gravitational force will prevent the charge info from getting outside, for example, even photon can not escape through horizon of event.
 

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