Picture of the Large Hadron Collider near Geneva, Switzerland. Amazes me that we use using one the the world's largest objects-- the Collider, 17 miles in circumference- to watch what happens when some of the smallest objects-- protons-- smash into each other. The Collider was only on line for a week last September when it had a problem with two of its superconducting magnets, and isn't expected to be back online until September, 2009 at best.
How do particles have mass? Does supersymmetry exist? And where is the Higgs boson?
Photo by Maximilien Brice, © CERN
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