Otto Hahn - German Physicist
(1879-1968)
December 1938
After Fermi's experiments, scientists try to identify the products of the neutron bombardment of uranium but can not. Hahn and Fritz Strassman finally show that two of the products are Barium-139 and Lanthanum-140. They suspect that the uranium atom has been split, but are reluctant to propose such a radical idea.

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