1462 Zamenhof (). According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Zamenhof" measures between 25.91 and 27.645 kilometers in diameter and its surface has an albedo between 0.087 and 0.121. The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0891 and a diameter of 25.62 kilometers based on an absolute magnitude of 11.2. This minor planet was named after L. L. Zamenhof (1859–1917), a Polish-Jewish ophthalmologist and creator of Esperanto, a constructed international language. This asteroid and 1421 Esperanto are considered to be the most remote Zamenhof-Esperanto objects (a
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.