Fission bomb assembly methods
Two methods have been applied to induce the nuclear chain reaction that produces the explosion of an atomic bomb. The gun-type assembly uses a conventional explosive to compress from one side, while the implosion assembly compresses from all sides simultaneously.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"File:Fission bomb assembly methods.svg - Wikipedia, the free encyclopedia."
http://en.wikipedia.org/w/index.php?title=File:Fission_bomb_assembly_methods.svg&page=1
Wikipedia
Public domain.
