I'm running civ3 on Mac 8.6 w/ 288 mb RAM --- it runs great.
There were changes to the game after the manual was printed. You can check the answers to your questions in the civilopedia while playing a game. I don't recall at the moment what resources are required for nukes. In order to build nukes, a civ (doesn't have to be you) must build the Manhattan Project wonder. The required tech is fission. This is all I can gather from your post.
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"What did you learn in school today, dear little boy of mine?
I learned our government must be strong. It's always right and never wrong,.....that's what I learned in school."
--- Tom Paxton song ('63)
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