The presenters of BBC Radio 4's flagship show, The Curious Cases of Rutherford and Fry, set about explaining why the world is as it is, and celebrate how we know what we know (even while we get so much wrong). 'A wonderfully engaging blend of wit, enthusiasm, clarity and knowledge.' - BILL BRYSON'If only Adam Rutherford and Hannah Fry were on tap to all of us, all the time- we could turn to them