It’s the End of the World As We Know It and I Feel Fine - Part 1
April 1st, 2008
This article from the New York Times explores the grounds of a lawsuit recently filed by two physicists in federal court seeking to stop CERN from using its new $8 billion particle accelerator. The question: are crazy physicists in Switzerland unwittingly constructing a doomsday machine that will tear apart the fabric of our universe, creating a black hole that will eat the earth? The article is paraphrased in brief below:
Walter L. Wagner and Luis Sancho think a giant particle accelerator that will begin smashing protons together outside Geneva this summer might produce a black hole or something else that will spell the end of the Earth — and maybe the universe.
Scientists say that is very unlikely — though they have done some checking just to make sure.
But Mr. Wagner and Mr. Sancho contend that scientists at the European Center for Nuclear Research, or CERN, have played down the chances that the collider could produce, among other horrors, a tiny black hole, which, they say, could eat the Earth. Or it could spit out something called a “strangelet†that would convert our planet to a shrunken dense dead lump of something called “strange matter.â€
Physicists in and out of CERN say a variety of studies, including an official CERN report in 2003, have concluded there is no problem. But just to be sure, last year the anonymous Safety Assessment Group was set up to do the review again.
“The possibility that a black hole eats up the Earth is too serious a threat to leave it as a matter of argument among crackpots,†said Michelangelo Mangano, a CERN theorist who said he was part of the group.
The new worries are about black holes, which, according to some variants of string theory, could appear at the collider. According to a paper by the cosmologist Stephen Hawking in 1974, they would rapidly evaporate in a poof of radiation and elementary particles, and thus pose no threat. No one, though, has seen a black hole evaporate.
Mr. Wagner and Mr. Sancho contend in their complaint, black holes could really be stable, and a micro black hole created by the collider could grow, eventually swallowing the Earth.
Dr. Arkani-Hamed said concerning worries about the death of the Earth or universe, “Neither has any merit.†He pointed out that because of the dice-throwing nature of quantum physics, there was some probability of almost anything happening. There is some minuscule probability, he said, “the Large Hadron Collider might make dragons that might eat us up.â€