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.