Roger Bacon is a misty figure in the history of science. Over the years, this thirteenth century friar has been portrayed as a mystic, magician, scientist ahead of his time and second rate collector of other people's ideas. It doesn't help that he often gets confused with his unrelated (as far as we are aware) Elizabethan namesake Francis Bacon. But it is in part because of the messy way that Roger has been reported over the years (even starring in a play by one of Shakespeare's contemporaries) that he is a fascinating subject. My book on Bacon and his science has an intentionally provocative subtitle. I ought to make it clear that in many ways he clearly wasn't the first scientist. Apart from the impossibility of coming up with a 'first' and the argument that you couldn't have a scientist before the word was coined (a terrible argument to my mind - you might as well say there weren't dinosaurs before the word was coined), Bacon was pretty bad on mo...