Template:Selected anniversaries/March 25: Difference between revisions
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||1800: Ernst Heinrich Karl von Dechen born ... geologist and academic. He studied the coal-formation of Westphalia and northern Europe generally, and contributed to the theory and practice of mining and metallurgical works in Rhenish Prussia. Pic. | ||1800: Ernst Heinrich Karl von Dechen born ... geologist and academic. He studied the coal-formation of Westphalia and northern Europe generally, and contributed to the theory and practice of mining and metallurgical works in Rhenish Prussia. Pic. | ||
||1818: Caspar Wessel born ... mathematician and cartographer. | ||1818: Caspar Wessel born ... mathematician and cartographer. Pic search yes: https://www.google.com/search?q=caspar+wessel | ||
File:Edouard-Léon Scott de Martinville.jpg|link=Édouard-Léon Scott de Martinville (nonfiction)|1857: Printer, bookseller, and inventor [[Édouard-Léon Scott de Martinville (nonfiction)|Édouard-Léon Scott de Martinville]] is receives a patent for the phonoautograph, which records an audio signal as a photographic image. | File:Edouard-Léon Scott de Martinville.jpg|link=Édouard-Léon Scott de Martinville (nonfiction)|1857: Printer, bookseller, and inventor [[Édouard-Léon Scott de Martinville (nonfiction)|Édouard-Léon Scott de Martinville]] is receives a patent for the phonoautograph, which records an audio signal as a photographic image. | ||
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||1900: John Henry "Professor" Pepper dies ... scientist and inventor who toured the English-speaking world with his scientific demonstrations. He entertained the public, royalty, and fellow scientists with a wide range of technological innovations. He is primarily remembered for developing the projection technique known as Pepper's ghost, building a large-scale version of the concept by Henry Dircks. Pic. | ||1900: John Henry "Professor" Pepper dies ... scientist and inventor who toured the English-speaking world with his scientific demonstrations. He entertained the public, royalty, and fellow scientists with a wide range of technological innovations. He is primarily remembered for developing the projection technique known as Pepper's ghost, building a large-scale version of the concept by Henry Dircks. Pic. | ||
||1912: Melita Norwood born ... English civil servant and spy. | ||1912: Melita Norwood born ... English civil servant and spy. Pic search yes: https://www.google.com/search?q=Melita+Norwood | ||
File:John Logie Baird 1917.jpg|link=John Logie Baird (nonfiction)|1925: John Logie Baird gives the first public demonstration of moving silhouette images by television at Selfridges department store in London in the first of a three-week series of demonstrations. | File:John Logie Baird 1917.jpg|link=John Logie Baird (nonfiction)|1925: John Logie Baird gives the first public demonstration of moving silhouette images by television at Selfridges department store in London in the first of a three-week series of demonstrations. | ||
Revision as of 06:52, 25 March 2019
1655: Saturn's largest moon, Titan, is discovered by Christiaan Huygens.
1857: Printer, bookseller, and inventor Édouard-Léon Scott de Martinville is receives a patent for the phonoautograph, which records an audio signal as a photographic image.
1860: Surgeon and gentleman scientist James Braid dies. He was an important and influential pioneer of hypnotism and hypnotherapy.
1862: Mathematician and engineer Philbert Maurice d’Ocagne born. He will found the field of nomography, the graphic computation of algebraic equations, on charts which he will called nomograms.
1925: John Logie Baird gives the first public demonstration of moving silhouette images by television at Selfridges department store in London in the first of a three-week series of demonstrations.
1927: Miniaturized version of John Ambrose Fleming delivers lecture on numbered cake algorithms.