How does the physics we know today, a highly professionalised enterprise, inextricably linked to government and industry, link back to its origins as a liberal art in Ancient Greece? What is the path that leads from the old philosophy of nature and its concern with humankind’s place in the universe to modern massive international projects that hunt down fundamental particles and industrial laboratories that manufacture marvels? Heilbron is one of the most revered physicists in the world, and has written books about Galileo and Niels Bohr. Chaired by Dan Davis.