Template:Selected anniversaries/February 15: Difference between revisions

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||1972 – Sound recordings are granted U.S. federal copyright protection for the first time.
||1972 – Sound recordings are granted U.S. federal copyright protection for the first time.
||Conel Hugh O'Donel Alexander (d. 15 February 1974), known as Hugh Alexander and C. H. O'D. Alexander as a pen name, was an Irish-born British cryptanalyst, chess player, and chess writer. He worked on the German Enigma machine at Bletchley Park during the Second World War, and was later the head of the cryptanalysis division at GCHQ for 25 years. Pic.


File:Richard Feynman.jpg|link=Richard Feynman (nonfiction)|1988:  Theoretical physicist and academic [[Richard Feynman (nonfiction)|Richard Feynman]] dies. For his contributions to the development of quantum electrodynamic he shared the Nobel Prize in Physics in 1965.
File:Richard Feynman.jpg|link=Richard Feynman (nonfiction)|1988:  Theoretical physicist and academic [[Richard Feynman (nonfiction)|Richard Feynman]] dies. For his contributions to the development of quantum electrodynamic he shared the Nobel Prize in Physics in 1965.

Revision as of 05:10, 1 April 2018