Charles Richter, Inventor of the Richter Magnitude Scale
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The Richter Magnitude Scale was invented in 1935 by Charles Richter of the California Institute of Technology as a mathematical device to compare the sizes of earthquakes.
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CEEOL - Article Detail
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Charles Richter - Linda Hall Library
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Charles Francis Richter Biography - Seismologist and mathematician
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Pasadena History: Caltech professor gave earthquakes a number – Pasadena Star News
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Charles F. Richter Worksheets
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Charles Richter and the Story of the Richter Scale by Susan Zannos
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What Ever Happened to the Richter Scale?, Earthquakes
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Charles Richter - Linda Hall Library
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Richter's Scale Princeton University Press
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Charles F. Richter Earth 520: Plate Tectonics and People: Foundations of Solid Earth Science
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Richter Scale & Magnitude
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National Richter Scale Day - Awareness Days Events Calendar 2024
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Charles F. Richter
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NATIONAL RICHTER SCALE DAY - April 26 - National Day Calendar