Amateur pianist Edward Teller
Came to the U.S. from Hungary in 1935. Worked on implosions for atomic bombs. Wanted to build a 50-gigaton hydrogen bomb and lobbied against nuclear test bans. Early climate change alarmist.
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Telegraph messenger boy Andrew Carnegie
Came to the U.S. from Scotland in 1848; adopted the Bessemer process for making steel and grew Carnegie Steel to more than $8 billion in 2026 dollars. Donated libraries to towns all around the U.S. and founded Carnegie-Mellon University.
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