The Life of Zamenhof to be intimately acquainted with this spirit, the most humane in the last century, the faithful disciple introduces it to us through masterful eloquence in his work." (Jobo, L M 1922, page 20). Appeared in English (1931) and Dutch (1934) translations. The English version of the book is supplied with many black-and-white photographs, most of them of full-page size. The Life of Zamenhof The Life of Zamenhof is a biography of L. L. Zamenhof, the founder of Esperanto, written in Esperanto by Edmond Privat. The first edition was in 1920 with 208 pages, and the second edition was in 1923
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.