You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content. In this episode, Hank welcomes you to the new age, to the new age, welcome to the new age. Here he'll talk about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission. SUBBABLE MESSAGE: "To Crash Course From Shawn, Mike, Sophia, and Jake" "Thank you for using humor while educating and inspiring." -- Table of Contents Radioactivity Transmutation Among Elements and Isotopes Calculating Half-Life Radioactive Decay Spontaneous Fission -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse