Louis-Christophe Zaleski-Zamenhof Esperanto on behalf of the Zamenhof family, Louis-Christophe Zaleski-Zamenhof has nevertheless been disinclined to assume a leading role in the Esperanto movement. Though he had no plans to write an autobiography, Polish journalist Roman Dobrzyński persuaded him to participate in a series of conversations over a ten-year period, which resulted in "La Zamenhof-strato" ("Zamenhof Street", 2003), a book detailing his life during the Nazi occupation of Poland, including his experiences in the Warsaw Ghetto and the Polish Resistance. Beyond an account of his own life, the book also relates the philosophy, history and tribulations of the Esperanto movement pioneered by
Ludwik Silberstein structures ("struts", "ropes", or "membranes") that are responsible for holding masses against the attractive force of gravity in a static configuration. According to Martin Claussen, Ludwik Silberstein initiated a line of thought involving eddy currents in the atmosphere, or fluids generally. He says that Silberstein anticipated foundational work by Vilhelm Bjerknes (1862 – 1951). Ludwik Silberstein Ludwik Silberstein (1872 – 1948) was a Polish-American physicist who helped make special relativity and general relativity staples of university coursework. His textbook "The Theory of Relativity" was published by Macmillan in 1914 with a second edition, expanded to include general relativity, in 1924.