Template:Selected anniversaries/February 26: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 19: | Line 19: | ||
||1842 – Camille Flammarion, French astronomer and author (d. 1925) | ||1842 – Camille Flammarion, French astronomer and author (d. 1925) | ||
||Fr. Pietro Angelo Secchi SJ (d. 26 February 1878) was an Italian astronomer. He was Director of the Observatory at the Pontifical Gregorian University (then called the Roman College) for 28 years. He was a pioneer in astronomical spectroscopy, and was one of the first scientists to state authoritatively that the Sun is a star. | |||
||1880 – Kenneth Edgeworth, Irish astronomer (d. 1972) | ||1880 – Kenneth Edgeworth, Irish astronomer (d. 1972) | ||
Revision as of 11:28, 29 October 2017
1638: Mathematician and linguist Claude Gaspard Bachet de Méziriac dies. He was the earliest writer who discussed the solution of indeterminate equations by means of continued fractions. He also did work in number theory and found a method of constructing magic squares.
1648: Niels Steensen uses Gnomon algorithm techniques to locate fossils.
1963: Brainiac Explains lecture series nominated for Manhattan Project award.
2005: Computer scientist Jef Raskin dies. He was a human–computer interface expert best known for conceiving and starting the Macintosh project for Apple in the late 1970s.
2012: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.