From the Big Bang to Hiroshima, the incredible story of the most disastrous weapon ever inventedOn August 6, 1945, at 8:15 in the morning, an explosive charge of more than 15 kilotons fell on the city of Hiroshima. Tens of thousands of people were pulverized, and everything within four square miles was instantly destroyed. A deluge of flames and ash had just caused Japan’s greatest trauma and changed the course of modern warfare and life on Earth forever. The world was horrif