Template:Selected anniversaries/February 6: Difference between revisions

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||1959: Jack Kilby of Texas Instruments files the first patent for an integrated circuit.
||1959: Jack Kilby of Texas Instruments files the first patent for an integrated circuit.
||1965: Ernst Erich Jacobsthal dies ... mathematician.  his dissertation, ''Anwendung einer Formel aus der Theorie der quadratischen Reste'' ("Application of a Formula from the Theory of Quadratic Remainders"), provided a proof that prime numbers of the form 4n + 1 are the sum of two square numbers. Pic: https://archiv.pressestelle.tu-berlin.de/doku/200jahre/ausstellung/2.etage/flure/nr.20/set20.3.htm


||1991: Salvador Luria  dies ... biologist and physician, Nobel Prize laureate.
||1991: Salvador Luria  dies ... biologist and physician, Nobel Prize laureate.

Revision as of 10:53, 16 October 2018