Stars can forge elements using two important methods - the slow and rapid processes of adding neutrons to an atomic nucleus. Featuring Professor Mike Merrifield. Extra footage: https://youtu.be/iYguNPf1Jp8 Periodic Videos: https://www.youtube.com/periodicvideos Deep Sky Videos: https://www.youtube.com/DeepSkyVideos Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/sixtysymbols This project features scientists from The University of Nottingham http://bit.ly/NottsPhysics Patreon: https://www.patreon.com/sixtysymbols Sixty Symbols videos by Brady Haran http://www.bradyharanblog.com Email list: http://eepurl.com/YdjL9