Every motion was caused by something else. But how, or who, first caused the universe to come into existence? Gillian Anderson summarizes Thomas Aquinas’ theory of the Prime Mover.

From the BBC Radio 4 series about life’s big questions – A History of Ideas. http://www.bbc.co.uk/historyofideas

This project is from the BBC in partnership with The Open University, the animations were created by Cognitive.