Concept

1911 in science

Summary
The year 1911 in science and technology involved some significant events, listed below. June 28 – The Nakhla meteorite (from Mars) lands in the area of Alexandria, Egypt, purportedly killing a dog. May 19 – Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior. July 7 – The United States, Russia, the United Kingdom and Japan, meeting in Washington, D.C., sign the North Pacific Fur Seal Convention of 1911, prohibiting open-water seal hunting of the endangered fur seal in the North Pacific Ocean, the first international treaty to address wildlife conservation issues. In the next six years, the seal population increases by 30%. January 3 – 1911 Kebin earthquake: An earthquake of 7.7 moment magnitude strikes near Almaty in Russian Turkestan. July 24 – American explorer Hiram Bingham III rediscovers the Inca citadel of Machu Picchu, Peru, and introduces it to the world. December 14 – Norwegian explorer Roald Amundsen and a team of four become the first people to reach the South Pole. Robert Remak's doctoral dissertation Über die Zerlegung der endlichen Gruppen in indirekte unzerlegbare Faktoren establishes that any two decompositions of a finite group into a direct product are related by a central automorphism. Traian Lalescu publishes Introduction to the Theory of Integral Equations, the first ever monograph on the subject of integral equations. Eugen Bleuler expands on his definition of schizophrenia as a condition distinct from Dementia praecox, in Dementia Praecox oder Gruppe der Schizophrenien. April 8 – Heike Kamerlingh Onnes discovers the phenomenon of superconductivity. June 24–30 – Domenico Pacini runs a series of measurements of underwater ionization in the Gulf of Genoa, demonstrating that the radiation later recognised as cosmic rays cannot be originated by the Earth's crust. October – The first Solvay Congress of physicists convenes. Ernest Rutherford explains the Geiger–Marsden experiment and derives the Rutherford cross section by deducing the existence of a compact atomic nucleus from scattering experiments.
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