Deep thinking and high ideas

"I could have done better myself," fumes Adolf Hitler in AN Wilson's 2007 novel 'Winnie and Wolf'. The Winnie in question is Winifred Wagner, the German composer's daughter-in-law. Wolf is the Führer. His disparaging statement refers to a unique aero-engine proposed, but never completed, by Ludwig Wittgenstein during his time as a research student at Manchester University from 1908 to 1911.