The Hollywood blockbuster, Oppenheimer, is having a massive opening weekend as I write these words.
The central event of the film is the ‘Trinity’ test on 16 July 1945, when scientists set off the world’s first nuclear bomb.
One of the less well-known effects of the test was its shattering impact on the wartime British prime minister. Winston Churchill was told about Trinity while he was attending the Potsdam conference in Germany with US president Harry Truman and…