Roger talks about Rubik's Cube and Vidar Norstein Klungre shows how you can solve one.
More about Rubik's Cube: https://en.wikipedia.org/wiki/Rubik%2...
Last video: • Sjonglering og matematikk
Roger's home page: http://rantonse.no/en
More about Magical Patterns (in Norwegian): http://www.aftenposten.no/viten/Magis...