Template:Selected anniversaries/January 1: Difference between revisions

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||1931 – Martinus Beijerinck, Dutch microbiologist and botanist (b. 1851)
||1931 – Martinus Beijerinck, Dutch microbiologist and botanist (b. 1851)
||1933: Henry Harrison Chase Dunwoody dies. Known in his own time for his work with the Army’s Weather Bureau, Dunwoody invented the carborundum radio detector in 1906. It was the first practical mineral radio wave detector and the first commercial semiconductor device. Pic.


||1971 – Cigarette advertisements are banned on American television.
||1971 – Cigarette advertisements are banned on American television.

Revision as of 08:11, 18 February 2018