For millennia, it was believed by all scientists and philosophers that the earth was at the centre of the universe. The truth is that the earth doesn't go in a circle. It orbits the sun in an ellipse as do the other planets. As we learn more, we realize actually this subject is more complicated than we initially thought.
Professor Jim Al-Khalili is the physicist who makes science look easy. He’s the author of several books, the latest of which is The Joy of Science, which offers eight core scientific principles that can be applied to everyday life. As a broadcaster Jim is perhaps best known as the voice of BBC Radio 4’s The Life Scientific and he holds the position of Distinguished Chair in physics and University Chair in public engagement at the University of Surrey. Our host for this discussion is Media Editor for The Sunday Times, Rosamund Urwin.
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