Cable Forum - Run for the Hills - Black hole created in lab

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- - Run for the Hills - Black hole created in lab (https://www.cableforum.uk/board/showthread.php?t=25829)

TheBlueRaja

17-03-2005 22:19

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by Earl of Bronze

Hardy har...... ;)

I finished reading this book a couple of months ago. God did it boil my head, but I even managed to understand some of it. :)

From what I remember, the author was driving at the idea that ''Strings'' where about the ''Planck'' (sp?) lenght.

Planks constant?

http://members.aol.com/profchm/plank.html

downquark1

17-03-2005 22:21

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by ScaredWebWarrior

I mean how can you take a quark seriously?

Ahem ;)

TheBlueRaja

17-03-2005 22:24

Re: Run for the Hills - Black hole created in lab

Lol

downquark1

17-03-2005 22:30

Re: Run for the Hills - Black hole created in lab

Quote:

Fortunately it was only the characteristics of a black hole - if they'd actually created one it would have simply swallowed up the entire lab!

Only when it's mass and thus gravity is sufficient to overcome the electrostatic force or strong nuclear force. Not sure which with a black hole.

Although I'm not sure what the difference between a "light" black hole and a normal mass is...

Earl of Bronze

17-03-2005 22:54

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by TheBlueRaja

Planks constant?

http://members.aol.com/profchm/plank.html

I just checked the book, and according to the author (on page 140) the planck length is given as 10 -33 centimeters.

In the worlds of the author -

''To get a sense of scale, if we where to magnify an atom to the size of the known universe, the Planck Length would barely etent to the height of a tree''

TheBlueRaja

17-03-2005 22:55

Re: Run for the Hills - Black hole created in lab

I still think this bit is the best...

Quote:

However, even if the ball of plasma is a black hole, it is not thought to pose a threat. At these energies and distances, gravity is not the dominant force in a black hole.

Its not thought to eh... Inspiring that is.

downquark1

17-03-2005 22:58

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by TheBlueRaja

I still think this bit is the best...

Not thought to eh... Inspiring that is.

I wanna know how they are going to get it out of the accelarater and what they are going to do with it.

Assuming it can be moved or even "seen" anymore.

homealone

17-03-2005 23:32

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by downquark1

I wanna know how they are going to get it out of the accelarater and what they are going to do with it.

Assuming it can be moved or even "seen" anymore.

well, just as maglev trains are a development of theory, this all may lead to 'antigravity' - what would you do with it? :)

Gareth

17-03-2005 23:40

Re: Run for the Hills - Black hole created in lab

erm, have these people never even played Half Life? Don't they know that this kinda stuff really should be left well alone?

Theodoric

17-03-2005 23:46

Re: Run for the Hills - Black hole created in lab

Although the Beeb seems to have got its facts a little wrong.

These form a ball of plasma about 300 times hotter than the surface of the Sun.

The temperature of the sun's surface is about 6000C, which gives a result of a mere 1.8 million degrees. I imagine that they mean 300 times hotter than the centre of the sun, which is about 10 million degrees.

Tezcatlipoca

18-03-2005 00:03

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by Gareth

erm, have these people never even played Half Life? Don't they know that this kinda stuff really should be left well alone?

LOL, don't want to create a resonance cascade :erm: ;)

ScaredWebWarrior

20-03-2005 22:40

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by TheBlueRaja

Planks constant?

http://members.aol.com/profchm/plank.html

I tell you, physicists are as thick as two short plancks ;)

http://www.google.co.uk/search?q=planck's+constant - where Google's 'calculator' will tell you what it is.
__________________

Quote:

Originally Posted by downquark1

Assuming it can be moved or even "seen" anymore.

I read something years ago that suggested the might be manipulated with an electro-magnetic field...

dilli-theclaw

20-03-2005 22:41

Re: Run for the Hills - Black hole created in lab

Quote:

Originally Posted by Gareth

erm, have these people never even played Half Life? Don't they know that this kinda stuff really should be left well alone?

Some scientists won't be happy 'till they blow everything up :(

'See I TOLD you that's what would happen!!'

ScaredWebWarrior

20-03-2005 22:43

Re: Run for the Hills - Black hole created in lab

Quote:

...gravity is not the dominant force in a black hole.

Duh? A black hole is where enough matter is brought together such that the gravitational forces collapse the object in on itself.

So gravity is everything in the formation of a black hole.

downquark1

21-03-2005 10:53

Re: Run for the Hills - Black hole created in lab

I think this has just been creative journalism
http://news.nationalgeographic.com/n...blackhole.html

Quote:

The collisions were powerful enough to break the nuclei into gluons and quarks, the most basic building blocks of matter. The particles created a plasma fireball 300 million times hotter than the surface of the sun. In a paper published on Cornell University's arxiv.org Web site, Nastase wrote that, based on his calculations, the fireball behaved like a black hole, absorbing streams of particles and radiating them as heat.

For now, any fears of the collider creating a civilization-destroying supergravity vortex are misplaced. The forces involved in the experiment were simply too weak, and the theoretical black hole was very short-lived. How brief? Divide a second by 10,000,000,000,000,000,000,000,000.

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