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The Astronomer. Inspired by a photograph of Dr. David Peck Todd, a noted American astronomer. He produced a complete set of photographs of the 1882 transit of Venus. https://t.co/QcdNIpAUV9
Harold Agnew and the Plutonium Core. Harold Agnew was an American physicist who flew as a scientific observer on the Hiroshima bombing mission. https://t.co/Zs7WHWxu8e