The document is a presentation from July 1st, 2010 about oral communication skills for science and technology given at CERN by Cristina Viegas. It discusses particle accelerators like the Large Electron-Positron Collider and the Large Hadron Collider at CERN. It also covers theoretical particles like the Higgs boson and hypothetical threats from stable black holes. The presentation provides links to learn more about CERN and identifies opportunities for students, graduates, and job seekers at CERN.