Baer-Babinet law

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The Baer-Babinet law (or sometimes, the law of Baer)[1] is a concept in geology which states that the process of formation of rivers is influenced by the rotation of the earth. According to the hypothesis, because of the rotation of the earth, erosion occurs mostly on the right banks of rivers in the Northern Hemisphere, and in the Southern Hemisphere on the left banks.[2] Albert Einstein wrote a paper explaining the causes of the phenomenon in 1926.[3]

The concept was originally introduced by a French physicist Jacques Babinet in 1859 using mathematical deduction and Coriolis force. A more definitive explanation was given by an Estonian scientist Karl Ernst von Baer in 1860.[1]

Although it is possible that an aggregate measurement of all rivers would lead to a correlation, the Coriolis force is orders of magnitude weaker than the local forces on the river channel from its flow. Therefore, this is unlikely to be important in any given river.[4]

See also


  1. 1.0 1.1 Fairbridge, Rhodes W. (1968). "Baer-babinet law". Encyclopedia of Earth Science: Geomorphology. New York: Reinhold Book Corp. p. 49. doi:10.1007/3-540-31060-6_22. ISBN 978-3-540-31060-0.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. Goudie, Andrew (2004). "Baer's Law of Stream Deflection". Earth Sciences History. 23 (2): 278–282. doi:10.17704/eshi.23.2.q2345815206m5812.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. Alpher, R. A. (1960). "Tea Leaves, Baer's Law, and Albert Einstein". American Journal of Physics. 28 (8): 748. doi:10.1119/1.1935976.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. Martínez-Frías, J; Hochberg, D; Rull, F (Feb 2006). "A review of the contributions of Albert Einstein to earth sciences—in commemoration of the World Year of Physics". Die Naturwissenschaften. 93 (2): 66–71. doi:10.1007/s00114-005-0076-8. PMID 16453104.CS1 maint: multiple names: authors list (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

Further reading