Friday, September 12, 2008

Brian Green on the Large Hadron Collider

In writing about the possibility that the LHC might produce black holes that would eat the planet, Brian Green wrote,
Work that made Stephen Hawking famous establishes that tiny black holes would disintegrate in a minuscule fraction of a second, long enough for physicists to reap the benefits of having produced them, but short enough to avoid their wreacking any havoc.

Even so, some have worried further that maybe Dr. Hawking was wrong and such black holes don’t disintegrate. Are we willing to bet the fate of the planet on an untested insight? And that question takes us to the crux of the matter: the collisions at the Large Hadron Collider have never before occurred under laboratory settings, but they’ve been taking place throughout the universe — even here on earth — for billions of years.

Cosmic rays — particles wafting through space — constantly rain down on the earth, the other planets and the wealth of stars scattered throughout the galaxy, with energies far in excess of those attainable by the Large Hadron Collider. And since these more powerful collisions haven’t resulted in astrophysical calamities, the collider’s comparatively tame collisions most assuredly won’t either.
I'm not one of those opposed to turning on the LHC. What I don't understand, though, is why we need it if the collisions it will produce are already plentiful on earth.

1 comment:

Anonymous said...

warhammer gold warhammer money warhammer accounts tibia money tibia gold tibia item runescape accounts buy runescape accounts runescape money runescape gold runescape gp runescape power leveling runescape powerleveling cheap rs2 powerleveling runescape equipment buy rs equipment runescape runes cheap rs2 runes runescape logs cheap rs2 logs runescape items buy runescape items runescape quest point rs2 quest point cheap runescape questpoint runescape gold runescape items runescape power leveling runescape money runescape gold buy runescape gold buy runescape money runescape items runescape accounts runescape gp runescape accounts runescape money runescape power leveling runescape powerleveling tibia gold dofus kamas buy dofus kamas wow power leveling wow powerleveling runescape questpoint rs2 questpoint Warcraft PowerLeveling Warcraft Power Leveling World of Warcraft PowerLeveling World of Warcraft Power Leveling Hellgate money Hellgate gold buy runescape logs buy rs2 items cheap runescape items Hellgate London gold Guild Wars Gold buy Guild Wars Gold runescape items rs2 accounts cheap rs2 equipments lotro gold buy lotro gold buy runescape money buy runescape gold buy runescape runes lotro gold buy lotro gold runescape money runescape gold cheap rs2 powerleveling eve isk eve online isk buy runescape power leveling rs2 power leveling tibia gold tibia item runescape accounts Fiesta Silver Fiesta Gold Scions of Fate Gold Hellgate Palladium Hellgate London Palladium SOF Gold Age Of Conan Gold AOC Gold ArchLord gold tibia money tibia gold runescape accounts runescape gold cheap rs2 powerleveling buy ArchLord gold DDO Plat Dungeons and Dragons Online Plat