The first V2 to hit London fell on Staveley Road, Chiswick, on the evening of Friday, 8 September 1944. There was a small gathering to commemorate the 75th anniversary at the site last Sunday. Unlike the V1s, which you could hear coming with the buzzing of their pulsejet engine – Iris Murdoch described watching them ‘tottering past the window’ – V2s gave no warning at all. Fired from continental Europe and tracing out a parabola into space, they fell at supersonic speed from at least fifty miles up.