Today in Tech History – February 23, 2018

1893 – Germany’s Imperial Patent Office granted Rudolph Diesel Patent No. 67207 for “a new efficient thermal engine”. We just call it, the Diesel engine.
http://cr4.globalspec.com/blogentry/1295/February-23-1893-Rudolph-Diesel-s-Patent/

1927 – US President Calvin Coolidge signed Public Law no. 632 establishing the Federal Radio Commission which was later replaced by the Federal Communications Commission.
http://www.oswego.edu/~messere/FRCpage.html/

1927 – German physicist Werner Heisenberg wrote a letter to Wolfgang Pauli, describing the uncertainty principle for the first time. He submitted a paper on the principle for publication the following March.

http://www.aps.org/publications/apsnews/200802/physicshistory.cfm/

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