Comment Re:Helium leak? (Score 1) 270
Helium is used as a liquid in physics research to keep parts of the beamline or the magnets cold. When it leaks out at 4K, it expands 600 times to a gas, and cools the crap out of everything around it, which can be somewhat of a problem. Not to mention it's not cheap refilling the tanks at CERN after a big leak.
