Template:Selected anniversaries/June 29: Difference between revisions
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||1793 – Josef Ressel, Czech-Austrian inventor, invented the propeller (d. 1857) | ||1793 – Josef Ressel, Czech-Austrian inventor, invented the propeller (d. 1857) | ||
||1818 – Angelo Secchi, Italian astronomer and academic (d. 1878) | ||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. | ||
File:George Ellery Hale.jpg|link=George Ellery Hale (nonfiction)|1868: Astronomer and journalist [[George Ellery Hale (nonfiction)|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. | File:George Ellery Hale.jpg|link=George Ellery Hale (nonfiction)|1868: Astronomer and journalist [[George Ellery Hale (nonfiction)|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. |
Revision as of 11:27, 29 October 2017
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.
1963: Physicist and educator Nikolay Basov uses new theory of quantum electronics to detect and prevent crimes against mathematical constants.