Template:Selected anniversaries/April 11: Difference between revisions

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||1977: Mauro Picone dies ... mathematician. He is known for the Picone identity, and the Sturm-Picone comparison theorem. He was also an outstanding teacher of mathematical analysis: some of the best Italian mathematicians were among his pupils. Pic.
||1977: Mauro Picone dies ... mathematician. He is known for the Picone identity, and the Sturm-Picone comparison theorem. He was also an outstanding teacher of mathematical analysis: some of the best Italian mathematicians were among his pupils. Pic.
||1979: Siegfried Knemeyer dies ... German aeronautical engineer, aviator and the Head of Technical Development at the Reich Ministry of Aviation of Nazi Germany during World War II. Pic.


File:Viking orbiter.jpg|link=Viking 2 (nonfiction)|1980: Viking program: After operating on the surface of Mars for 1316 days (1281 sols), the [[Viking 2 (nonfiction)|Viking 2]] lander is turned off when its batteries fail.
File:Viking orbiter.jpg|link=Viking 2 (nonfiction)|1980: Viking program: After operating on the surface of Mars for 1316 days (1281 sols), the [[Viking 2 (nonfiction)|Viking 2]] lander is turned off when its batteries fail.

Revision as of 16:18, 7 October 2018