This diagram shows a very simplified design of a hydrogen bomb. Science historian Alex Wellerstein has created an online tool for comparing the impact of the different types of nuclear weapons.

A typical hydrogen bomb is two-stage: First, an atomic fission bomb detonates, and that in turn starts the fusion of a hydrogen isotope in a second section. Diagram shows a simplified summary of ...

Richard L Garwin, the creator of America's hydrogen bomb, died on May 13 at his home in Scarsdale, New York. He was 97. Over the course of his seven-decade career, Mr Garwin laid the groundwork ...

A typical hydrogen bomb is two-stage: First, an atomic fission bomb detonates, and that in turn starts the fusion of a hydrogen isotope in a second section. Diagram shows a simplified summary of ...