Template:Selected anniversaries/March 25: Difference between revisions
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File:Maurice d'Ocagne.jpg|link=Philbert Maurice d’Ocagne (nonfiction)|1862: Mathematician and engineer [[Philbert Maurice d’Ocagne (nonfiction)|Philbert Maurice d’Ocagne]] born. He will found the field of nomography, the graphic computation of algebraic equations, on charts which he will called [[Nomogram (nonfiction)|nomograms]]. | File:Maurice d'Ocagne.jpg|link=Philbert Maurice d’Ocagne (nonfiction)|1862: Mathematician and engineer [[Philbert Maurice d’Ocagne (nonfiction)|Philbert Maurice d’Ocagne]] born. He will found the field of nomography, the graphic computation of algebraic equations, on charts which he will called [[Nomogram (nonfiction)|nomograms]]. | ||
||1865: Pierre-Ernest Weiss born ... physicist specialized in magnetism. He developed the domain theory of ferromagnetism in 1907. Weiss domains and the Weiss magneton are named after him. Weiss also developed the molecular or mean field theory, which is often called Weiss-mean-field theory, that lead to the discovery of the Curie-Weiss law. Alongside Auguste Picard, Pierre Weiss is considered one of the first discoverers of the magnetocaloric effect in 1917. Pierre Weiss made several experimental discoveries that led to the development of the strongest electromagnets of the beginning of the 20th century. 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. | ||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. | ||
Revision as of 09:16, 29 December 2018
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.