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[[File:Ivy Mike atmospheric nuclear test - November 1952 - Flickr - The Official CTBTO Photostream.jpg|right|thumb|Mushroom cloud from the first detonation of a Teller-Ulam staged-fusion device.]] | [[File:Ivy Mike atmospheric nuclear test - November 1952 - Flickr - The Official CTBTO Photostream.jpg|right|thumb|Mushroom cloud from the first detonation of a Teller-Ulam staged-fusion device.]] | ||
The conditions for the Twin Nuclei Problem began at the end of World War II, with the use of atomic fission bombs on the cities of [https://en.wikipedia.org/wiki/Hiroshima Hiroshima] and [https://en.wikipedia.org/wiki/Nagasaki Nagasaki] to force Japan's surrender. <!-- Duck and cover still plausible with fission, hydrogen fusion bombs change everything. 1952 Ivy Mike detonation. --> | The conditions for the Twin Nuclei Problem began at the end of World War II, with the use of atomic fission bombs on the cities of [https://en.wikipedia.org/wiki/Hiroshima Hiroshima] and [https://en.wikipedia.org/wiki/Nagasaki Nagasaki] to force Japan's surrender. <!-- Duck and cover still plausible with fission, pressure to develop a greater weapon because cold war, hydrogen fusion bombs change everything. 1952 Ivy Mike detonation. --> | ||
[[File:DNA-structure-and-bases.png|right|thumb|Structure of DNA.]] | [[File:DNA-structure-and-bases.png|right|thumb|Structure of DNA.]] |