It's a tranquil Sunday afternoon in Hamburg. The rain is pouring down, i already confirmed that the ice cream parlor has closed for today. So it's radio time for me. And there's a particular gem I would like to recommend to you. It's Radio New Zealand's "Great Ideas" series, that started out with the episode on "Rebellion and Revolution". A show formatted as a talk between multiple scholars and a host. They launch into an exploration that spans history, from antique times to the modern day…