whiz115

Recently i was watching an innocent documentary on TV about CERN laboratories, i had no idea what CERN is, so i did a small search on the internet. What i discovered was that they are about to deploy a very important experiment and there are worries that it could hide dangers for our planet. The experiment will be conducted on May 2008.

From what i'm reading, it has to do with the deeper understanding of the matter and they will use a high energy particle collider, (LHC) to accelerate two beams of particles (hydrogen or Lead nucleus beam).

when those two beams collide they will produce many new particles and it is also expected some of them are beyond what exists on our planet or we can understand or know how to handle with safety.

Among what scientists expect to be created are "Higgs boson" particle or "God Particle". I'm not aware or understand what these stuff are, but the most worring of all is the creation of a tiny black hole! which from what i'm reading they hope! (?) but they aren't sure that it will dissappear due to Hawking radiation which if i got it right it is suppose to make a black hole to loose mass and eventualy dissapear.

guys i'm not astrophysicist or nuclear scientist and i don't understand everything i read on Wikipedia and on some other sites on the net...i'm just an electronics hobbyst who takes his first steps...

My question is: IS THIS HOAX? do some guys try to scare people from internet or there is indeed danger? CERN laboratories are for god shake in the heart of Europe! i don't know about your houses.. but mine is on this planet few thousants miles away from the place the experiments are going to take place!


source:

LARGE HARDON COLLIDER
http://en.wikipedia.org/wiki/Large_Hadron_Collider
LHC FACTS
http://www.lhcdefense.org/LHC_FACTS.html
LHC THEORETICAL PARTICLES
http://www.lhcdefense.org/LHC_THEORE...PARTICLES.html
HAWKING RADIATION
http://en.wikipedia.org/wiki/Hawking_Radiation
http://casa.colorado.edu/~ajsh/hawk.html


http://www.google.com is your friend if somebody needs more sources.

dknguyen

At least everything would go out with a bang!

Bob Scott

I just heard that the Rhino Party has decided not to support cleaning up the environment. The reason stated is that the environment has just too much dirt.

A black hole would eliminate the environment altogether! Problem solved: No more Dirt.

kchriste

Well black holes have been referred to as "cosmic vacuum cleaners". A worse fate than the end of the world would be if some marketing company picked them up and started selling these "cosmic vacuum cleaners" door to door!
You can read about the CERN project here. Check out the FAQ:
http://lhc-machine-outreach.web.cern...hine-outreach/

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jpanhalt

Interesting typo....


Yes, the densities attained will be very high. I read in Science News that the risks had been evaluated and considered extremely (vanishingly) low. There were similar concerns with the first atomic blast about whether the atmosphere would be ignited. I don't believe such risk analyses can actually come up with a value of zero, because there is always an unknown.

whiz115

well.. from my side i don't know what to think or to believe, one of the sites that i'm including to my sources, asks for donations and i don't know if such thing is reasonable or not, on the other hand if you check on the Wikipedia link that jpanhalt quoted and specificaly at the 25th reference you'll see this

A. Helfer, "Do black holes radiate?", Rept. Prog. Phys. 66, 943-1008 (2003

http://arxiv.org/abs/gr-qc/0304042


also check this link somewhere in the middle.
http://www.risk-evaluation-forum.org/prob.htm

From the above you could probably think that some kind of controversy must be between scientists.

I²R

Look, we get hit with MUCH,MUCH higher energy particles, in the form of cosmic rays, than anything the LHC is remotely capable of, and has been for the past 4.5 billion years. If those cosmic ray collisions haven't produced a mini black hole that consumed the Earth by now, our pitifully weak experiments don't have a chance of doing so. Relax, people.

shaneshane1

well whiz115, from what i understand is that a black hole is likely to exceed the speed of light, there for warping light (yeah right)

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Hank Fletcher

How exactly did that conversation go?

Pommie

Why is it that people think that black holes somehow suck in other things?

If, tomorrow, the sun collapsed into a black hole then all the planets would carry on orbiting on exactly the same path.

BTW, love that typo, Large Hardon Collider, classic.

Mike.

I²R

Yeah, but it would get really cold, really fast. And that would suck.

Hero999

No, they would be flung out of their orbits.

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I²R

No, they would not. The quantity of mass remains the same and therefor the gravity stays the same, as well. The force of gravity is expressed as F = (G x m1 x m2) / r^2, where G is the universal gravitational constant, m1 and m2 are the masses of the attracting bodies and r is the distance bewteen their mass centers. If the Sun turned into a black hole, none of these values would change.

Pommie

LOL, that would suck.

Mike.

Hero999

I get you.

I thought he meant the sun was sucked it to another black hole not collapsed in on itself forming a black hole.

Besides even if it did collapse in on itself then wouldn't it still make a difference to the orbits as the distribution of mass within the sun would have changed?

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