Science history: Carbon-14 is discovered, opening a window into past civilizations — Feb. 27, 1940

Martin Kamen and Samuel Ruben's discovery of the radioactive isotope carbon-14 in 1940 helped usher in a new era of dating ...
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Portable Power: Inventor Samuel Ruben and the Birth of Duracell

Hintz, Eric S. 2009. "Portable Power: Inventor Samuel Ruben and the Birth of Duracell." Technology and Culture, 50, (1) 24–57. https://doi.org/10.1353/tech.0.0203 ...