Template:Selected anniversaries/March 25: Difference between revisions
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File:Christiaan Huygens.jpg|link=Christiaan Huygens (nonfiction)|1655: Saturn's largest moon, Titan, is discovered by [[Christiaan Huygens (nonfiction)|Christiaan Huygens]]. | File:Christiaan Huygens.jpg|link=Christiaan Huygens (nonfiction)|1655: Saturn's largest moon, Titan, is discovered by [[Christiaan Huygens (nonfiction)|Christiaan Huygens]]. | ||
||1681: Gabriele Manfredi born ... mathematician who undertook important work in the field of calculus. | ||1681: Gabriele Manfredi born ... mathematician who undertook important work in the field of calculus. Pic. | ||
||1712: Nehemiah Grew dies ... anatomist and physiologist ... Father plant anatomy. Pic. | ||1712: Nehemiah Grew dies ... anatomist and physiologist ... Father plant anatomy. Pic. | ||
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||1807: The Slave Trade Act becomes law, abolishing the slave trade in the British Empire. | ||1807: The Slave Trade Act becomes law, abolishing the slave trade in the British Empire. | ||
||1800: Ernst Heinrich Karl von Dechen born ... geologist and academic. | ||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. | ||
Revision as of 06:50, 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.