CERN physicist explains how team uses subatomic splashes to restart experiments after annual upgrades

When you push "start" on your microwave or computer, the device flips right on--but major physics experiments like the Large Hadron Collider at the European Organization for Nuclear Research, known as CERN, don't work that way. Instead, engineers and physicists need to take a few weeks every year to carefully reset the collider and all the experiments on it.