Template:Selected anniversaries/June 29: Difference between revisions

Revision as of 10:47, 4 February 2018

1868: Astronomer and journalist George Ellery Hale born. He will discover magnetic fields in sunspots, and be leader or key figure in the planning or construction of several world-leading telescopes.
1869: Niles Cartouchian and Egon Rhodomunde Confront Gnotilus wins Pulitzer Prize for Most Astonishing Illustration of the Year.
1895: Biologist Thomas Henry Huxley dies. He is known as "Darwin's Bulldog" for his advocacy of Charles Darwin's theory of evolution.
1896: Physicist Boris Yakovlevich Podolsky born. He will work with Albert Einstein and Nathan Rosen on entangled wave functions and the EPR paradox.
1963: Physicist and educator Nikolay Basov uses new theory of quantum electronics to detect and prevent crimes against mathematical constants.

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 ||1793 – Josef Ressel, Czech-Austrian inventor, invented the propeller (d. 1857)
+||Moritz Abraham Stern (b. 29 June 1807) was a German mathematician. Stern was interested in primes that cannot be expressed as the sum of a prime and twice a square (now known as Stern primes). He is known for formulating Stern's diatomic series, which counts the number of ways to write a number as a sum of powers of two with no power used more than twice. Pic.
 ||1818 – Angelo Secchi, Italian astronomer and academic (d. 1878) Fr. Pietro Angelo Secchi SJ (Italian pronunciation: [ˈpjɛːtro ˈandʒelo ˈsekki]; 29 June 1818 – 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.