"[This] is the story of the discovery and uses of the noble gases, a group of elements vanishingly rare on our planet, which do not react with anything, which in fact do nothing. You can't feel them,
Lord Hugh Dowding, Air Chief Marshall of the Royal Air Force, Head of Fighter Command, First Baron of Bentley Priory, lived in the grip of unseen spirits. In thrall of the supernatural, he talked to
