Matt Strassler talks about how Ice Cube works. Ice Cube is the new neutrino detector in Antarctica. It consists of a lot of holes drilled in the ice with strings of phototubes dropped into them. They look for the Cherenkov radiation created when high energy neutrinos slam into atomic nuclei, creating high energy particles which are traveling faster than light in the ice. Analyzing the light intensity and direction of travel they can figure out a lot of things about the neutrinos. Read Matt's write up to see a lot better explanation.

Bill Gill


C is not the speed of light in a vacuum.
C is the universal speed limit.