Then there was a great flash that reached the far horizon. Even Dr Penney, who had witnessed the first historic cataclysm in the desert at Almagordo and later seen a bomb burst over Japan, described the scene as ‘terrifying’ as he turned around to find the frigate Plym had vanished and to see a great greyish-black cloud shooting up thousands of feet into the air and ever-growing in size.1
In the Monte Bello Islands off the coast of Western Australia on 3 October 1952, Dr William Penney watched as an atomic device for which he was largely responsible vaporised a test ship and sent thousands of tonnes of water erupting into the air. His programme had been successful; Britain was now a fully-fledged nuclear power. Read MoreA political inconvenience
- Leonard Bertin, Atom Harvest (London, 1955), 154. [↩]