LHC@home (Score 5, Informative)

It may be worth noting that some of the design work on this amazing project was actually done by Slashdot readers with no background in particle accelerators. LHC@home is a distributed computing project using the SixTrack program that helps simulate particles' travel in the accelerator to study the stability of their orbits. It has been critical data to the scientists that have been working on the project.