Template:Selected anniversaries/April 11: Difference between revisions

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||1970 – Apollo 13 is launched.
||1970 – Apollo 13 is launched.
||Mauro Picone (d. 11 April 1977) was an Italian 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.


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 11:40, 1 April 2018