Perform or perish? Guilty confessions of a YouTube physicist

This post by Philip Moriarity was first published in physicsfocus on 9 August, 2013 and has been reposted here with the author’s permission. This week is YouTube’s Geek Week so it seems a particularly (in)opportune moment to come clean about some niggling doubts I’ve been having of late about physics education/edutainment on the web. Before …