Template:Selected anniversaries/February 22: Difference between revisions

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||1857: Heinrich Rudolf Hertz born ... physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. The unit of frequency — cycle per second — was named the "hertz" in his honor.
||1857: Heinrich Rudolf Hertz born ... physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. The unit of frequency — cycle per second — was named the "hertz" in his honor.


||Sir Charles Lyell (d. 22 February 1875) was a Scottish geologist who popularized the revolutionary work of James Hutton. He wrote ''Principles of Geology'', which presented uniformitarianism–the idea that the Earth was shaped by the same scientific processes still in operation today–to the broad general public.  
||1868: David Devant born ... magician, shadowgraphist and film exhibitor. He is regarded by magicians as a consummate exponent of suave and witty presentation of stage illusion. Pic.
 
||1875: Sir Charles Lyell dies ... geologist who popularized the revolutionary work of James Hutton. He wrote ''Principles of Geology'', which presented uniformitarianism–the idea that the Earth was shaped by the same scientific processes still in operation today–to the broad general public.  


||1879: Johannes Nicolaus Brønsted born ... chemist and academic.
||1879: Johannes Nicolaus Brønsted born ... chemist and academic.

Revision as of 07:29, 10 January 2019