With Professor Brian Cox’s new series Forces of Nature airing soon on BBC2, Freeview channel Yesterday is giving viewers a chance to see all four episodes of his 2011 series Wonders of the Universe, in which he shows us that if all the world’s a stage, then all the universe is a classroom. The first episode looks at the nature of time via chilling images of rusting shipwrecks on Namibia’s Skeleton Coast, while the last one looks at light, with a little help from a jet fighter flight. It’s physics, kids, but not as we knew it…