Science > Physics > "Thousands of little black holes in our solar system"....our ticket to the stars ?
| Topic: |
Science > Physics |
| User: |
"FED UP" |
| Date: |
12 Jun 2006 12:58:47 PM |
| Object: |
"Thousands of little black holes in our solar system"....our ticket to the stars ? |
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
Should the theory of black holes as gateways prove correct, the
existence of thousands of these objects could prove to be vital.
"But what good would such small black hole be ?"
Information conduits. Perhaps we will develop some sort of binary
gravity wave communications capability.
Perhaps THIS is the internet of the universe's alien races.
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
Anyhow it's strange how things develop. We seem to reach a barrier and
something unexpected opens up, clearing the way.
Like some sort of new galactic manifest destiny.
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| User: "Sam Wormley" |
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| Title: Re: "Thousands of little black holes in our solar system"....ourticket to the stars ? |
12 Jun 2006 01:50:07 PM |
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Small black hole would give themselves away by either their
gravitational effects or their radiation.
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| User: "FED UP" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 02:19:18 PM |
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Sam Wormley wrote:
Small black hole would give themselves away by either their
gravitational effects or their radiation.
Small...very small.
It seems to me our instruments nowhere close to sensitive enough to
detect
either their gravitational effects nor their radiation.
In that vast emptiness they may go millions of years without coming
close enough to
any other matter to have any significant interactions with.
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| User: "Wayne Throop" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:07:05 PM |
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: "FED UP" <endtraveler@yahoo.com>
: It seems to me our instruments nowhere close to sensitive enough to
: detect either their gravitational effects nor their radiation.
That turns out not to be the case.
http://en.wikipedia.org/wiki/Hawking_radiation
In physics, Hawking radiation is thermal radiation thought to be
emitted by black holes due to quantum effects.
[...]
A black hole of one solar mass has a temperature of only 60
nanokelvins; in fact, such a black hole would absorb far more cosmic
microwave background radiation than it emits. A black hole of 4.5
10 kg (about the mass of the Moon) would be in equilibrium at 2.7
kelvins, absorbing as much radiation as it emits. Yet smaller
primordial black holes would emit more than they absorb, and thereby
lose mass.
[...]
Unlike most objects, a black hole's temperature increases as it
radiates away mass. The rate of temperature increase is
exponential, with the most likely endpoint being the dissolution of
the black hole in a violent burst of gamma rays.
So, either the hole is radiating furiously, or it is too massive
to reasonably expect to manipulate. Or put another way, either it's
radiating detectably, or it's massive enough to detect.
Further, smaller black holes are more numerous, which for primordeal
black holes seems quite possible, the lack of small ones evaporating
in catastrophic events anywhere close by would seem to make larger
ones improbable. Note, the "catastrophic event" is fairly noticeable:
http://en.wikipedia.org/wiki/Hawking_radiation
So, for instance, a 1 second-lived black hole has a mass of 2.28x10^5
kg, equivalent to an energy of 2.05x10^22 J that could be released by
5x10^6 megatons of TNT. The initial power is 6.84x10^21 W.
AIUI, this is what would happen in the last one second
of any black hole's lifetime. And it would be radiating a LOT
leading up to that last second.
Mind you, that doesn't mean it's impossible, and they are still
searched for. But since the "discovery" of Hawking radiation,
the notion that there are lots and lots of black holes wandering
around the solar system has fallen quite far out of favor.
Wayne Throop http://sheol.org/throopw
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| User: "Sam Wormley" |
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| Title: Re: "Thousands of little black holes in our solar system"....ourticket to the stars ? |
12 Jun 2006 02:25:41 PM |
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FED UP wrote:
Sam Wormley wrote:
Small black hole would give themselves away by either their
gravitational effects or their radiation.
Small...very small.
The smaller the hotter and brighter!
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| User: "FED UP" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:03:03 PM |
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The smaller the hotter and brighter!
Black hole evaporation.
I think the opening article requires that instead of black holes
completely evaporating and disappearing, "a tiny, stable remnant is
left behind.", as suggested below.
Just what is the latest ideas on this ?
"Back in the 1970's, Stephen Hawking came up with theoretical arguments
showing that black holes are not really entirely black: due to
quantum-mechanical effects, they emit radiation. The energy that
produces the radiation comes from the mass of the black hole.
Consequently, the black hole gradually shrinks. It turns out that the
rate of radiation increases as the mass decreases, so the black hole
continues to radiate more and more intensely and to shrink more and
more rapidly until it presumably vanishes entirely.
Actually, nobody is really sure what happens at the last stages of
black hole evaporation: some researchers think that a tiny, stable
remnant is left behind. Our current theories simply aren't good enough
to let us tell for sure one way or the other. As long as I'm
disclaiming, let me add that the entire subject of black hole
evaporation is extremely speculative. It involves figuring out how to
perform quantum-mechanical (or rather quantum-field-theoretic)
calculations in curved spacetime, which is a very difficult task, and
which gives results that are essentially impossible to test with
experiments. Physicists *think* that we have the correct theories to
make predictions about black hole evaporation, but without experimental
tests it's impossible to be sure.
Now why do black holes evaporate? Here's one way to look at it, which
is only moderately inaccurate. (I don't think it's possible to do much
better than this, unless you want to spend a few years learning about
quantum field theory in curved space.) One of the consequences of the
uncertainty principle of quantum mechanics is that it's possible for
the law of energy conservation to be violated, but only for very short
durations. The Universe is able to produce mass and energy out of
nowhere, but only if that mass and energy disappear again very quickly.
One particular way in which this strange phenomenon manifests itself
goes by the name of vacuum fluctuations. Pairs consisting of a particle
and antiparticle can appear out of nowhere, exist for a very short
time, and then annihilate each other. Energy conservation is violated
when the particles are created, but all of that energy is restored when
they annihilate again. As weird as all of this sounds, we have actually
confirmed experimentally that these vacuum fluctuations are real.
Now, suppose one of these vacuum fluctuations happens near the horizon
of a black hole. It may happen that one of the two particles falls
across the horizon, while the other one escapes. The one that escapes
carries energy away from the black hole and may be detected by some
observer far away. To that observer, it will look like the black hole
has just emitted a particle. This process happens repeatedly, and the
observer sees a continuous stream of radiation from the black hole.
http://cosmology.berkeley.edu/Education/BHfaq.html#q8
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| User: "Wayne Throop" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:28:57 PM |
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: "FED UP" <endtraveler@yahoo.com>
: I think the opening article requires that instead of black holes
: completely evaporating and disappearing, "a tiny, stable remnant is
: left behind.", as suggested below.
Is there any reason to suppose black hole evaporation would stop
anywhere above planck-scale spacetime foam? Current ad-hoc combinations
of GR and QM seem to work for most things above planck scale.
In any event, I see no reason to think it's *likely*.
"Not definitively disproven" isn't "likely".
Wayne Throop http://sheol.org/throopw
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:05:29 PM |
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In article <1150142583.448776.233660@i40g2000cwc.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
The smaller the hotter and brighter!
Black hole evaporation.
I think the opening article requires that instead of black holes
completely evaporating and disappearing, "a tiny, stable remnant is
left behind.", as suggested below.
Just what is the latest ideas on this ?
No, it should just evaporate away with a final burst of energy.
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "Bryan Derksen" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
13 Jun 2006 11:04:19 PM |
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On Mon, 12 Jun 2006 21:05:29 +0100, Phineas T Puddleduck
<phineaspuddleduck@googlemail.com_NOSPAM> wrote:
In article <1150142583.448776.233660@i40g2000cwc.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
I think the opening article requires that instead of black holes
completely evaporating and disappearing, "a tiny, stable remnant is
left behind.", as suggested below.
Just what is the latest ideas on this ?
No, it should just evaporate away with a final burst of energy.
The article under discussion is here:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
- it was linked to in the original post that started this thread. It
discusses a new theory that suggests tiny black holes _don't_
evaporate away with a final burst of energy. The authors of the theory
predict that if it's true there could be between thousands of them
within the solar system, nearly undetectable because they _aren't_
evaporating but not quite invisible if you know what to look for. They
could be useful.
Maybe the theory's true, maybe it isn't, but either way it's still an
interesting idea to speculate about.
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| User: "Ingot" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
14 Jun 2006 08:50:27 AM |
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"Bryan Derksen" <bryan.derksen@shaw-spamguard.ca> wrote
The article under discussion is here:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
- it was linked to in the original post that started this thread. It
discusses a new theory that suggests tiny black holes _don't_
evaporate away with a final burst of energy. The authors of the theory
predict that if it's true there could be between thousands of them
within the solar system, nearly undetectable because they _aren't_
evaporating but not quite invisible if you know what to look for. They
could be useful.
Maybe the theory's true, maybe it isn't, but either way it's still an
interesting idea to speculate about.
Maybe one of them hit Tunguska in 1908.
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| User: "Gene Ward Smith" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:53:32 PM |
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Sam Wormley wrote:
FED UP wrote:
Sam Wormley wrote:
Small black hole would give themselves away by either their
gravitational effects or their radiation.
Small...very small.
The smaller the hotter and brighter!
The news article didn't go into this, but it seems to me they couldn't
be radiating as brightly as Hawking predicted or they would evaporate
too quickly, or else they would be larger than what they seem to be
talking about.
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:55:48 PM |
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In article <1150145612.237558.282420@f6g2000cwb.googlegroups.com>, Gene
Ward Smith <genewardsmith@gmail.com> wrote:
Sam Wormley wrote:
FED UP wrote:
Sam Wormley wrote:
Small black hole would give themselves away by either their
gravitational effects or their radiation.
Small...very small.
The smaller the hotter and brighter!
The news article didn't go into this, but it seems to me they couldn't
be radiating as brightly as Hawking predicted or they would evaporate
too quickly, or else they would be larger than what they seem to be
talking about.
The smaller they get, the faster they evaporate - its an exponential
thing.
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "Michael Grosberg" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 02:15:23 PM |
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FED UP wrote:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
Should the theory of black holes as gateways prove correct, the
existence of thousands of these objects could prove to be vital.
"But what good would such small black hole be ?"
Information conduits. Perhaps we will develop some sort of binary
gravity wave communications capability.
Perhaps THIS is the internet of the universe's alien races.
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
SF has tought us that nothing good will come out of it. Either the
black hole will be used by pirates to pull ships out of hyperspace, or
your gravity-wave communicator will cause the earth to vanish.
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| User: "Default User" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 03:55:52 PM |
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Michael Grosberg wrote:
FED UP wrote:
I suggest we set up this black hole on the outer fringes of the
solar system for safety purposes.
SF has tought us that nothing good will come out of it. Either the
black hole will be used by pirates to pull ships out of hyperspace, or
your gravity-wave communicator will cause the earth to vanish.
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
Brian
--
If televison's a babysitter, the Internet is a drunk librarian who
won't shut up.
-- Dorothy Gambrell (http://catandgirl.com)
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| User: "Tim Bruening" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticketto the stars ? |
17 Jun 2006 02:41:12 PM |
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Default User wrote:
Michael Grosberg wrote:
FED UP wrote:
I suggest we set up this black hole on the outer fringes of the
solar system for safety purposes.
SF has tought us that nothing good will come out of it. Either the
black hole will be used by pirates to pull ships out of hyperspace, or
your gravity-wave communicator will cause the earth to vanish.
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
Sorry, Darth Vader just blew up Aldebaran.
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 04:31:02 PM |
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In article <J0rM54.E8y@news.boeing.com>, Default User
<defaultuserbr@yahoo.com> wrote:
Michael Grosberg wrote:
FED UP wrote:
I suggest we set up this black hole on the outer fringes of the
solar system for safety purposes.
SF has tought us that nothing good will come out of it. Either the
black hole will be used by pirates to pull ships out of hyperspace, or
your gravity-wave communicator will cause the earth to vanish.
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
I would like to purchase your x-wing fighter, do you ship to Aldebaran?
I can Western Union you 100,000 quatloo's and you can return the
balance to me.
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "Westprog" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
13 Jun 2006 06:17:18 AM |
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"Phineas T Puddleduck" <phineaspuddleduck@googlemail.com_NOSPAM> wrote in
message news:120620062231026489%phineaspuddleduck@googlemail.com_NOSPAM...
In article <J0rM54.E8y@news.boeing.com>, Default User
<defaultuserbr@yahoo.com> wrote:
....
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
I would like to purchase your x-wing fighter, do you ship to Aldebaran?
I can Western Union you 100,000 quatloo's and you can return the
balance to me.
We can increase the size of your flarg by 20%.
J/
BOTW: "Barchester Towers" - Antony Trollope
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| User: "GSV Three Minds in a Can" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 06:34:27 PM |
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Bitstring <120620062231026489%phineaspuddleduck@googlemail.com_NOSPAM>,
from the wonderful person Phineas T Puddleduck
<phineaspuddleduck@googlemail.com_NOSPAM> said
<snip>
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
I would like to purchase your x-wing fighter, do you ship to Aldebaran?
I can Western Union you 100,000 quatloo's and you can return the
balance to me.
Hopefully the Powers will have a much less lenient approach to spammers
than you humans do. Something along the lines of 'eat supernovae and
die'.
--
GSV Three Minds in a Can
Google may be your friend, but groups.google.com posters definitely aren't.
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| User: "Michael Grosberg" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
13 Jun 2006 01:22:15 AM |
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GSV Three Minds in a Can wrote:
Bitstring <120620062231026489%phineaspuddleduck@googlemail.com_NOSPAM>,
from the wonderful person Phineas T Puddleduck
<phineaspuddleduck@googlemail.com_NOSPAM> said
<snip>
Or we'll spend a lot of money and effort to create an FTL
communications system, just get overwhelmed with interstellar spam.
WE ARE TOP OFFICIAL OF THE SIRIUS GOVERNMENT CONTRACT REVIEW PANEL WHO
ARE INTERESTED IN IMPORATION OF GOODS INTO OUR SOLAR SYSTEM WITH FUNDS
WHICH ARE PRESENTLY TRAPPED IN THE ALDEBARAN SYSTEM. IN ORDER TO
COMMENCE THIS BUSINESS WE SOLICIT YOUR ASSISTANCE TO ENABLE US TRANSFER
INTO YOUR ACCOUNT THE SAID TRAPPED FUNDS.
I would like to purchase your x-wing fighter, do you ship to Aldebaran?
I can Western Union you 100,000 quatloo's and you can return the
balance to me.
Hopefully the Powers will have a much less lenient approach to spammers
than you humans do. Something along the lines of 'eat supernovae and
die'.
Maybe the pocket universe in which the Xeelee stuck humans was their
version of a killfile.
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| User: "Tim Bruening" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticketto the stars ? |
17 Jun 2006 02:37:20 PM |
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Michael Grosberg wrote:
FED UP wrote:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
Should the theory of black holes as gateways prove correct, the
existence of thousands of these objects could prove to be vital.
"But what good would such small black hole be ?"
Information conduits. Perhaps we will develop some sort of binary
gravity wave communications capability.
Perhaps THIS is the internet of the universe's alien races.
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
SF has tought us that nothing good will come out of it. Either the
black hole will be used by pirates to pull ships out of hyperspace, or
your gravity-wave communicator will cause the earth to vanish.
It might be possible (Earth by David Brin) to use gravity waves to keep the
mini-black hole in an orbit inside the Earth that will keep its mass gain in pace
with its Hawking evaporation.
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 01:02:18 PM |
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In article <1150135127.619222.327570@f6g2000cwb.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
Please enlighten us on how you would take an appreciable percentage of
solar mass and subject it to the extreme temperatures and pressures
needed. Enquiring minds are simply on the edge of their seat
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "FED UP" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 02:10:12 PM |
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Please enlighten us on how you would take an appreciable percentage
of
solar mass and subject it to the extreme temperatures and pressures
needed. Enquiring minds are simply on the edge of their seat
Oh thought I included a link.
It suggests these tiny black holes are already there, in our solar
system.
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 02:17:22 PM |
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In article <1150139412.137260.67150@y43g2000cwc.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
Please enlighten us on how you would take an appreciable percentage
of
solar mass and subject it to the extreme temperatures and pressures
needed. Enquiring minds are simply on the edge of their seat
Oh thought I included a link.
It suggests these tiny black holes are already there, in our solar
system.
Not that I am aware of.
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "Phineas T Puddleduck" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
12 Jun 2006 02:20:02 PM |
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In article <1150139412.137260.67150@y43g2000cwc.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
Please enlighten us on how you would take an appreciable percentage
of
solar mass and subject it to the extreme temperatures and pressures
needed. Enquiring minds are simply on the edge of their seat
Oh thought I included a link.
It suggests these tiny black holes are already there, in our solar
system.
These black holes would be phenomenally tiny...
--
The greatest enemy of science is pseudoscience.
Jaffa cakes. Sweet delicious orangey jaffa goodness, and an abject lesson why
parroting information from the web will not teach you cosmology.
.
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| User: "Tim Bruening" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticketto the stars ? |
17 Jun 2006 02:35:46 PM |
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Phineas T Puddleduck wrote:
In article <1150135127.619222.327570@f6g2000cwb.googlegroups.com>, FED
UP <endtraveler@yahoo.com> wrote:
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
Please enlighten us on how you would take an appreciable percentage of
solar mass and subject it to the extreme temperatures and pressures
needed. Enquiring minds are simply on the edge of their seat
If we can find a black hole, feeding it would be easy.
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| User: "Ben Bradley" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
13 Jun 2006 02:23:41 AM |
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On 12 Jun 2006 10:58:47 -0700, "FED UP" <endtraveler@yahoo.com> wrote:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2006/06/09/MNGFHJBDE31.DTL
Should the theory of black holes as gateways prove correct, the
existence of thousands of these objects could prove to be vital.
"But what good would such small black hole be ?"
Information conduits. Perhaps we will develop some sort of binary
gravity wave communications capability.
Perhaps THIS is the internet of the universe's alien races.
Also should the theory that human travel through spinning black holes
prove correct, we could feed a mini black hole to enlarge it, and set
it spinning to serve our purposes.
How large? I recall that the mass of the Earth would make a black
hole with 1cm diameter - rather small compared to the human body, but
still with the gravitational force of the Earth.
The Sun's mass would make a black hole somewhere in the km range,
but it would have the same mass and gravitational force as the Sun,
and we've already got one that all the planets and things have
arranged themselves around...
I suggest we set up this black hole on the outer fringes of the solar
system for safety purposes.
SAFETY purposes??? Think of this thing's gravitational tug! Think
of the Oort Cloud and the Kupier belt and all the little snowballs out
there whose orbits it will disturb - we'll be bombarded with comets!
Seriously, to truly not damage the Solar System, it would be best
to turn a nearby star into the appropriately sized black hole.
But being several light-years away, going from Earth to that black
hole by 'conventional' means (standard rocket ship, perhaps taking
decades at best) to travel around the Galaxy or further parts of the
Universe starts to sound like Clark Howard telling you the cheapest
airline deal to some destination out of Atlanta: "First you drive to
Birmingham..."
Anyhow it's strange how things develop. We seem to reach a barrier and
something unexpected opens up, clearing the way.
Like some sort of new galactic manifest destiny.
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| User: "Aaron Denney" |
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| Title: Re: "Thousands of little black holes in our solar system"....our ticket to the stars ? |
13 Jun 2006 11:15:36 PM |
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["Followup-To:" header set to sci.physics.]
On 2006-06-13, Ben Bradley <ben_nospam_bradley@frontiernet.net> wrote:
How large? I recall that the mass of the Earth would make a black
hole with 1cm diameter - rather small compared to the human body, but
still with the gravitational force of the Earth.
Still with the gravitational force of the Earth, 1 Earth radius away.
Of course, there's now nothing to support you there. Closer by, it's
much, much, much, higher.
--
Aaron Denney
-><-
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