We knew that the world would no longer be the same. Several people laughed, several people cried. Most were silent. I remembered a line from the holy book of Hinduism, the Bhagavadgita; Vishnu tries to persuade the Prince that he must do his duty, and to impress him, takes his many-armed guise and says: "I am Death, the great destroyer of worlds..." These words Robert Oppenheimer uttered after the nuclear bombs wiped off the face of the Earth Hiroshima and Nagasaki. Two bombs, named "Kid" and "Fat Man," were the result of the long work of the "Manhattan Project." A group of the best scientists in the world, led by Robert Oppenheimer, worked for several years to create the most powerful and dangerous weapon in the world. Articles on working as part of the Manhattan Project have compiled a book that you hold in your hands.