The CERN Courier states that creating nano-blackholes (NBHs) is safe because higher energy collisions happen naturally. If one considers the conservation of momentum, wouldn't thusly formed NBHs have to either absorb relatively enormous amounts of mass to stay with the earth, or always rapidly move through the earth and escape?
Isn't their argument for safety therefore invalid, since they either must grow so fast thet they'd swallow the earth in short order or they simply couldn't stay to begin with (as CERN created NBHs would)?
2006-09-04 15:43:34 · 5 answers · asked by ubavontuba 1 in Science & Mathematics ➔ Physics
http://www.cerncourier.com/main/article/44/9/22
2006-09-04 16:02:26 · update #1
According to the article, the lifetime for black holes created at LHC would be 10^-26 seconds, which corresponds to a maximum flightlength of 3*10^8 (m/s) * 10^-26 (s) = 3*10^-18 meters if they happened to be moving at the speed of light. This is several orders of magnitude smaller than a nucleon, so the black holes would not be able to "swallow" very much material before evaporating.
But the experimental argument (mentioned in the article you cite) is that cosmic rays are hitting the earth with energies at least ten million times higher than LHC, and the black holes created in these reactions are obviously not swallowing the earth.
2006-09-04 19:16:32 · answer #1 · answered by b_physics_guy 3 · 0⤊ 0⤋
Have you been reading Dan Brown's novel, "Angels & Demons"? Be assured, this is a fictional novel.
The CERN accellerators give physisists a peek into the world of atoms and other particles never before dreamed of - but I have my serious doubts that they have actually produced miniature black holes - which is an oxymoron.
A black hole, by definition, generates a massive gravity field so great that even light rays are sucked back into it. That just doesn't sound like something that you could put in a lab container, now does it?
2006-09-04 16:11:26 · answer #2 · answered by LeAnne 7 · 0⤊ 0⤋
It seems possible they could be contained with a magnetic field. Even if the mini black holes "ate" part of the magnetic field, conservation of energy must still be observed, so it would just move into the direction of the magnetic force.
An even more interesting question - not to say that your's isn't interesting also - is what would happen to these mini black holes - once Hawking radiation causes them to evaporate?
Do they become naked singularities?
And if so - can they still be held in place?
2006-09-04 15:55:42 · answer #3 · answered by Techguy2396 2 · 1⤊ 0⤋
MY CONCERN ABOUT THIS IS, WE HAVE NO FACTS ON WHAT WOULD HAPPEN IF SOMETHING GOES WRONG, JUST THEORIES. OF COURSE WE HAVE THE BEST WORKING ON THIS PROJECT, BUT DONT TELL ME NOTHING CAN GO WRONG TO EXCEL THE DAMAGE THAT COULD BE CAUSED IF THIS GOT OVERHEATED OR EXPLODED. WE HAD MANY GREAT MINDS ON THE APOLLO MISSION AND SPACE TRAVEL, BUT LOOK AT WHAT HAPPENED ON MISSION 13. BOTTOM LINE IS WHAT WE THINK WE KNOW , WE DONT. WHAT WE WANT TO KNOW, WE WILL TRY. BUT AT THE COST OF WHAT EXACTLY?
2015-03-23 15:51:33 · answer #4 · answered by the phantom 1 · 1⤊ 0⤋
as long as we can get weapon out of it, it's worth the risk. (miniature nukes sucks!)
2006-09-04 15:51:05 · answer #5 · answered by andyheretic 2 · 0⤊ 1⤋