How does the nuclear bomb relate to the literature book the chrysalids?
The nuclear bomb is massive destruction. It does no spare civilian populations. It can affect several generations of the "enemy." The chrysalids hated the human population and wanted it wiped out.
The badlands is a place where the fringes people, when sterilised are sent to, to live apart from the people of Waknuk. In the time of the Old People, a nuclear bomb was dropped on what is now known as the Badlands, causing the land to become infertile. Nothing that is the norm of Waknuk can grow in the Badlands because this bomb was dropped.
A subcritical mass cannot sustain a nuclear chain reaction, it dies exponentially A critical mass can sustain a nuclear chain reaction, but it remains constant neither increasing nor decreasing A supercritical mass not only sustains a nuclear chain reaction but it increases exponentially until the mass explodes A nuclear fission bomb must become supercritical at some time in order to explode.
The term atom bomb (or atomic bomb) usually refers to a bomb that obtains its energy solely through the process of nuclear fission. However technically the term is considered interchangeable with nuclear bomb, and can refer to any bomb obtaining its energy through either nuclear fission, nuclear fusion, or any combination of the two processes.