Yakov Perelman
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Yakov Isidorovich Perelman was a Russian and Soviet science writer and author of many popular science books, including Physics Can Be Fun and Mathematics Can Be Fun.
Yakov Perelman around 1910.
Physics for Entertainment, 1913
Grigori Perelman
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Grigori Yakovlevich Perelman is a Russian mathematician and geometer who is known for his contributions to the fields of geometric analysis, Riemannian geometry, and geometric topology. In 2005, Perel
Yakov Perelman
…casualties (1,117,000). His older brother Yosif was a writer who published under the pseudonym Osip Dymov. He is not related to the Russian mathematician Grigori Perelman, who was born in 1966 to a different Yakov Perelman. However, Grigori Perelman told The New Yorker that his father gave him Physics for Entertainment…
Perelman in 1993