Extraterrestrial Essentials For Life Confirmed -A Galaxy Classic
Mars' Mysterious Medusae Fossae Formations

Science Debunks Possibility of Catastrophic Black Hole Growth at LHC

080306spaceblackhole344hmedium_2 Another day, another "Large Hadron Collider will destroy the planet" news story.  But this one reveals just how much the doomsayers actually understand the subject: the most recent blog-surge is based on a paper called "On the Possibility of Catastrophic Black Hole Growth in the Warped Brane-World Scenario at the LHC."  A paper which, four sentences in, says "We argue against the possibility of catastrophic black hole growth at the LHC."

This hasn't stopped the usual host of posts and "Oh please vote this up on Digg/Reddit" entries.  The reason is a single horribly misapplied graph extracted from the paper which shows how black holes of a certain critical mass could survive for minutes.  Never mind how the paper then says that such a mass won't happen, or how the whole thing is based on a particularly extreme unsupported variant of brane theory, or how that graph is generated by turning up all the variables until the handles snap off, or even how the author then writes - based on THAT EXACT GRAPH - "the growth of black holes to catastrophic size does not seem possible."

When a researcher can invoke models of five dimensional anti de Sitter space and he still concludes that some shit just ain't gonna happen, you have to take his word over people who can only spell "spacetime continuum" two tries out of three.  Researcher Robert Casadio's work is interesting abstract science - the application of esoteric models to interesting examples - but he's not entirely innocent of courting this attention.  Throwing around phrases like "penetrate the Earth" is spotlight-seeking, no question, and while it's hard to resist the urge to attract some attention to your work you really shouldn't ramp up what's basically a physics fan-fiction as a threat to the planet.

Posted by Luke McKinney.

LHC: Still Safe.  http://arxivblog.com/?p=1136

Comments

So, you're saying we're all going to die? I can't wait for the singularity parties.
I suppose it's easier for some of these doomsayers to predict ruin in the form of something exotic like a black hole. The much, much, much greater threat of nuclear nastiness is just so mundane.

Prior collider risk estimates have tended to have been later re-evaluated as flawed and overstated.

The LHC will soon achieve energy levels many times greater than anything that came before it and near future upgrades will continue the energy escalation.

What do you think of the recent Oxford paper that argues scientists may have underestimated risk by a factor of 10,000? [1]

[1] Probing the Improbable: Methodological Challenges for Risks with Low Probabilities and High Stakes - Ord, Hillerbrand, Sandberg, U of Oxford http://arxiv.org/ftp/arxiv/papers/0810/0810.5515.pdf

And never you mind that the sun is producing the same effects as the CERN experiments at magnitudes of the energy the LHC will be capable of achieving, let alone other far more energetic stellar bodies, and hasn't formed any of those pesky Earth-or-universe eating black holes or Big Bangs yet.

Please cite a reference that argues the Sun might replicate similar conditions as CERN.

Sometimes some things are said from what one believes, most of the times a normal person is wrong...; well, until the world ends, but then nobody will know who was right, unless there is a moon base or a mars base, je.

or are in heaven.

Every scientific endeavour has some risk. Its the whole point of conducting experiments, to understand what we dont know. The guys creating the atomic weapon had a slight fear of burning up the entire atmosphere but research showed it was a very minor possibility. Same goes for LHC, we know enough to understand the risk but we will continue to create machines such as this because it is in the nature of humans to explore the unkown. In regards to the scare mongers and anti-science crusaders - these kind of people have been with us since day dot and they will continue to live along side us, using the science we create but doing all they can to deny or disprove it. Telling the world that the LHC will create black holes or turn everything into a lump of goo is normal for these weirdos. Just ignore the stories and anyway, if it all goes up in a big puff of smoke at least it will be noted by other civilizations in the cosmos that probing the big bang (or bounce) is not a great idea!

Fools! The truth of the LHC Cern project is to give the annunaki, that is Reptilian shape shifters the dimensions of our reality, so that on dec 21 2012 they can open the Ophiuchus Stargate, and the great serpent known as Antichrist Dajaal or as the mayans knew him Quetzalcoatl will descend to earth. Waste and despair fools, this divine esoteric wisdom is beyond masonry, the towers of Jacin and Boaz have been reversed, the checkered board has been set, Doom has come at last fools...when the mist comes in dec 21 2012, flee to the mountains for safety, for from the mist shall the horrors of likes the which the world have not seen since the time of the fallen ones...the nephlim aka shapeshifters...the ones who we must not name.

Do three scientists really debunk possibility of catastrophe..

If this is what 'science' says, how is it then that science also says that the micro black hole would evaporate in 10^-26 seconds? Perhaps, because a mathematical approach called 'microcanonical' recommended as relevant by various physicists, including S Hawking et al, in 1978 for the book 'Euclidean Quantum Gravity', gives uncomfortably longer duration for extradimensional black holes.

But I've looked at this 2009 paper and there's something in there that's at odds with an earlier paper I happened to have seen days before, by two of its own authors. In Physical Review D '01 Casadio/Harms discussed how the level of the angular momentum of a micro black hole could reduce or annul its evaporation rate whilst within a supposed microscopic compact higher dimensional domain.

So the micro black hole starts off with spin from the torques of the impact. As the 2009 paper suggests, over time any subsequent change in its angular momentum would tend to zero. However, it could still maintain much or all of its original angular momentum, by the reduced or anulled evaporation rate argument of the 2001 paper.

In this way, what would stop its mass growing to the minimum of our 4dimensional scale, of the region, for a mini black hole, of a thousand tonnes - still vastly (6 x 10^18 times) less than the earth's mass?

Whether anyone tries checking putting the mass at THIS time into the by now applicable, wiki Hawking radiation formula for luminosity (Watts), I can assure you that a level of 3.6*10^18W is vastly dangerous.

Do three scientists really debunk possibility of catastrophe..

If this is what 'science' says, how is it then that science also says that the micro black hole would evaporate in 10^-26 seconds? Perhaps, because a mathematical approach called 'microcanonical' recommended as relevant by various physicists, including S Hawking et al, in 1978 for the book 'Euclidean Quantum Gravity', gives uncomfortably longer duration for extradimensional black holes.

But I've looked at this 2009 paper and there's something in there that's at odds with an earlier paper I happened to have seen days before, by two of its own authors. In Physical Review D '01 Casadio/Harms discussed how the level of the angular momentum of a micro black hole could reduce or annul its evaporation rate whilst within a supposed microscopic compact higher dimensional domain.

So the micro black hole starts off with spin from the torques of the impact. As the 2009 paper suggests, over time any subsequent change in its angular momentum would tend to zero. However, it could still maintain much or all of its original angular momentum, by the reduced or anulled evaporation rate argument of the 2001 paper.

In this way, what would stop its mass growing to the minimum of our 4dimensional scale, of the region, for a mini black hole, of a thousand tonnes - still vastly (6 x 10^18 times) less than the earth's mass?

Whether anyone tries checking putting the mass at THIS time into the by now applicable, wiki Hawking radiation formula for luminosity (Watts), I can assure you that a level of 3.6*10^18W is vastly dangerous.

Fiction or reality...
The poor large Hadron Collider will sooner or later create a 'mini' or 'micro' or 'nano' black hole (sorry I forgot the pico black hole)....

BULL SHIT....we on this miniplanet DO NOT have all the energy necessary for a Black hole....NOT even a star like the sun has enough mass and power - energy to crete a black hole.....
Only stupids can suspect that microparticles impacts can change the time space web on this miniplanet at the point to generate a black hole in whatever mathematical dimension.

You MUST remember what it has made clear by the experimenters (i.e. the scientists) IF a Hadron (a kind of Higgs boson ) would be creted by colliding large picoparticles al LHC it will unfortunately last for 1 second at -26 (= 1sec e-26)........

What hell this strange and totally unstable particle has to do with black holes ???

MY theory is different The hadron will generate a new star around Switzerland at CERN that will eath the entire planet...will swallow it in 1sec e-26.....

REGARDS to all .....good luck...

Been watching too many Sci-Fi Channel movies? Where do you think the doomsayers get these wild thoughts from?

M

LHC will unleash the 4 horsemen of the apocalypse in search of GOD PARTICLE. 1. gravitation, 2. electromagnetism, 3. strong nuclear force and 4. weak nuclear force.

...meshing with technology is bad for all of us!

hehehehe

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)