The Safety of the Large Hadron Collider
I found this excerpt from the wikipedia article on the LHC to be particularly amusing.
"Safety
While many have voiced concerns that the LHC will destroy the Universe, engineers close to the project claim that the possibility is infinitesimally small. As CERN has pointed out, if the Earth were in danger of any such fate, it would have happened billions of years ago from the bombardment of protons the planet receives that are millions of times more energetic than anything that could be produced by the LHC.[8]
As with the Relativistic Heavy Ion Collider (RHIC), people both inside and outside of the physics community have voiced concern that the LHC might trigger one of several theoretical disasters capable of destroying the Earth or even our entire Universe. Each advance in particle accelerator technology exposes the stability of the very fabric of the universe to more stringent tests.[citation needed] RHIC has been running since 2000 and has generated no major problems; however the Large Hadron Collider is set to create an environment significantly more alien to nature than the RHIC has ever created, and therefore the probability of catastrophe is greater.
Theoretical disasters include:
Creation of a stable black hole[9] inside the earth
Creation of strange matter that is more stable than ordinary matter
Creation of magnetic monopoles that could catalyze proton decay
Triggering a transition into a different quantum mechanical vacuum (see False vacuum)
It is possible that the Large Hadron Collider will create tiny black holes within the Earth [10]. Most physicists expect that Hawking Radiation will cause these black holes to dissipate. The primary cause for concern is the fact that Hawking Radiation - the only means by which these black holes could be dissipated, is entirely theoretical.
CERN performed a study to investigate whether such dangerous events as micro black holes, strangelets, or magnetic monopoles could occur.[11] The report concluded, "We find no basis for any conceivable threat." If black holes are produced, they are expected to evaporate almost immediately via Hawking radiation and thus be harmless, although the existence of Hawking radiation is currently unconfirmed. It has been claimed that a strong argument for the safety of colliders such as the LHC comes from the simple fact that cosmic rays with energies up to twenty million times the LHC's 1.4×10¹³ eV capacity have been bombarding the Earth, Moon and other objects in the solar system for billions of years with no such effects[12].
And many people remain gravely concerned about the safety of the LHC such as the science watchdog group called the Lifeboat Foundation which has covered these dangers in detail. As with any new and untested experiment, it is not possible to say with utter certainty what will happen. John Nelson at the University of Birmingham stated of RHIC that "it is astonishingly unlikely that there is any risk—but I could not prove it."[13] Furthermore, in academia there is some question, albeit among a minority of scientists, of whether the Hawking radiation theory is correct.[14]"
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