Template:Selected anniversaries/February 18: Difference between revisions

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||1745: Alessandro Volta born ... physicist, chemist, and a pioneer of electricity and power, who is credited as the inventor of the electrical battery and the discoverer of methane. Pic.
||1745: Alessandro Volta born ... physicist, chemist, and a pioneer of electricity and power, who is credited as the inventor of the electrical battery and the discoverer of methane. Pic.


||1766: A mutiny by captive Malagasy begins at sea on the slave ship ''Meermin'', leading to the ship's destruction on Cape Agulhas in present-day South Africa and the recapture of the instigators.
||1766: A mutiny by captive Malagasy begins at sea on the slave ship ''Meermin'', leading to the ship's destruction on Cape Agulhas in present-day South Africa and the recapture of the instigators. Pic: similar ship.


||1772 the Royal Danish Academy of Sciences and Letters presented Alexander Wilson with a gold medal for his work on sunspots. Wilson was a Scottish surgeon, type-founder, astronomer, mathematician and meteorologist and the first scientist to record the use of kites in meteorological investigations. Wilson noted that sunspots viewed near the edge of the Sun's visible disk appear depressed below the solar surface, a phenomenon referred to as the Wilson effect. When the Royal Danish Academy of Sciences and Letters announced a prize to be awarded for the best essay on the nature of solar spots, Wilson submitted an entry which won.  https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-18.html Pic.
||1772 the Royal Danish Academy of Sciences and Letters presented Alexander Wilson with a gold medal for his work on sunspots. Wilson was a Scottish surgeon, type-founder, astronomer, mathematician and meteorologist and the first scientist to record the use of kites in meteorological investigations. Wilson noted that sunspots viewed near the edge of the Sun's visible disk appear depressed below the solar surface, a phenomenon referred to as the Wilson effect. When the Royal Danish Academy of Sciences and Letters announced a prize to be awarded for the best essay on the nature of solar spots, Wilson submitted an entry which won.  https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-18.html Pic.
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||1856: Baron Wilhelm von Biela dies ... military officer and amateur astronomer. Pic.
||1856: Baron Wilhelm von Biela dies ... military officer and amateur astronomer. Pic.


||1871: Harry Brearley born ... inventor.
||1871: Harry Brearley born ... inventor, stainless steel. Pic.


||1871: George Udny Yule born ... statistician. He will make important contributions to the theory and practice of correlation, regression, and association, as well as to time series analysis. He pioneered the use of preferential attachment stochastic processes to explain the origin of power law distribution. The Yule distribution, a discrete power law, is named after him. Pic.
||1871: George Udny Yule born ... statistician. He will make important contributions to the theory and practice of correlation, regression, and association, as well as to time series analysis. He pioneered the use of preferential attachment stochastic processes to explain the origin of power law distribution. The Yule distribution, a discrete power law, is named after him. Pic.
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File:Marius Sophus Lie.jpg|link=Marius Sophus Lie (nonfiction)|1899: Mathematician and academic [[Marius Sophus Lie (nonfiction)|Marius Sophus Lie]] dies. He largely created the theory of continuous symmetry and applied it to the study of geometry and differential equations.
File:Marius Sophus Lie.jpg|link=Marius Sophus Lie (nonfiction)|1899: Mathematician and academic [[Marius Sophus Lie (nonfiction)|Marius Sophus Lie]] dies. He largely created the theory of continuous symmetry and applied it to the study of geometry and differential equations.


||1900: Eugenio Beltrami dies ... mathematician notable for his work concerning differential geometry and mathematical physics. His work was noted especially for clarity of exposition.  
||1900: Eugenio Beltrami dies ... mathematician notable for his work concerning differential geometry and mathematical physics. His work was noted especially for clarity of exposition. Pic.


||1913: Chemist Frederick Soddy introduced the term "isotope". Soddy was an English chemist and physicist who received the Nobel Prize for Chemistry in 1921 for investigating radioactive substances. He suggested that different elements produced in different radioactive transformations were capable of occupying the same place on the Periodic Table, and on 18 Feb 1913 he named such species "isotopes" from Greek words meaning "same place." He is credited, along with others, with the discovery of the element protactinium in 1917. *TIS https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-18.html Pic.
||1913: Chemist Frederick Soddy introduced the term "isotope". Soddy was an English chemist and physicist who received the Nobel Prize for Chemistry in 1921 for investigating radioactive substances. He suggested that different elements produced in different radioactive transformations were capable of occupying the same place on the Periodic Table, and on 18 Feb 1913 he named such species "isotopes" from Greek words meaning "same place." He is credited, along with others, with the discovery of the element protactinium in 1917. *TIS https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-18.html Pic.

Revision as of 10:26, 28 March 2019