Rostov-on-Don
Scientists and adventurers

Scientists and explorers include, doctors N. Bogoraz and S. Fedosov, scientists Dmitri Mendeleev, A. S. Popov, and I. P. Pavlov, George Sedov, the Arctic Sea explorer, Yakov Frenkel (1894–1952), a solid-state physicist, Svyatoslav Fyodorov (1927–2000), ophthalmologist, Sabina Spielrein (1885–1942), psychoanalyst, and Yuri Oganessian (a nuclear physicist who is the namesake of oganesson (element 118)).
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