Template:Selected anniversaries/March 4: Difference between revisions

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||1909 – George Edward Holbrook, American chemist and engineer (d. 1987)
||1909 – George Edward Holbrook, American chemist and engineer (d. 1987)
||Knut Johan Ångström (d. 4 March 1910) was a Swedish physicist.  He investigated the radiation of heat from the sun, and terrestrial nocturnal emission and its absorption by the Earth's atmosphere; to that end devised various delicate methods and instruments, including his electric compensation pyrheliometer, invented in 1893, apparatus for obtaining a photographic representation of the infra-red spectrum (1895) and pyrgeometer (circa 1905) Pic.


||1914 – Ward Kimball, American animator, producer, and screenwriter (d. 2002)
||1914 – Ward Kimball, American animator, producer, and screenwriter (d. 2002)

Revision as of 06:14, 27 March 2018