Numberphile is: http://www.youtube.com/user/numberphile The song is at: http://www.youtube.com/watch?v=nBgQPSUTWVM The making of the song and detail of the maths is at:http://www.youtube.com/watch?v=mqK63v2Jzks The song was a collaboration with this very talented guy: http://www.youtube.com/user/wwwboyinabandcom Professor Philip Moriarty is based at the University of Nottingham List of Brady's channels below...... http://www.youtube.com/periodicvideos (Chemistry stuff) http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)