This tiny particle accelerator fits in a large room — making it much more practical than CERN’s

In 2010, when scientists were preparing to smash the first particles together within the Large Hadron Collider (LHC), sections of the media fantasized that the EU-wide experiment might create a black hole that could swallow and destroy our planet. How on Earth, columnists fumed, could scientists justify such a dangerous indulgence in the pursuit of abstract, theoretical knowledge? But particle accelerators are much more than enormous toys for scientists to play with. They have practical uses to