Template:Selected anniversaries/September 24: Difference between revisions
No edit summary |
No edit summary |
||
| Line 28: | Line 28: | ||
||1870: Georges Claude born ... chemist and engineer, invented Neon lighting. Pic. | ||1870: Georges Claude born ... chemist and engineer, invented Neon lighting. Pic. | ||
||1884: Hugo Schmeisser born ... weapons designer and engineer. Pic search | ||1884: Hugo Schmeisser born ... weapons designer and engineer. Pic search. | ||
||1885: Viggo Brun born ... professor, mathematician and number theorist. In 1915, he introduced a new method, based on Legendre's version of the sieve of Eratosthenes, now known as the Brun sieve, which addresses additive problems such as Goldbach's conjecture and the twin prime conjecture. He used it to prove that there exist infinitely many integers n such that n and n+2 have at most nine prime factors, and that all large even integers are the sum of two numbers with at most nine prime factors. Pic. | ||1885: Viggo Brun born ... professor, mathematician and number theorist. In 1915, he introduced a new method, based on Legendre's version of the sieve of Eratosthenes, now known as the Brun sieve, which addresses additive problems such as Goldbach's conjecture and the twin prime conjecture. He used it to prove that there exist infinitely many integers n such that n and n+2 have at most nine prime factors, and that all large even integers are the sum of two numbers with at most nine prime factors. Pic. | ||
||1888: Edward | File:Harry_Hinsley,_Edward_Travis,_and_John_Tiltman_in_Washington,_November_1945.jpg|link=Edward Travis (nonfiction)|1888: Cryptographer and intelligence officer [[Edward Travis (nonfiction)|Edward Travis]] born. Travis will become the operational head of Bletchley Park during World War II, and later become the head of GCHQ. | ||
||1888: Launch of ''Gymnote'', one of the world's first all-electric submarine and the first functional submarine equipped with torpedoes. | ||1888: Launch of ''Gymnote'', one of the world's first all-electric submarine and the first functional submarine equipped with torpedoes. | ||
| Line 48: | Line 48: | ||
||1898: Howard Florey born ... pharmacologist and pathologist, Nobel Prize laureate. Pic. | ||1898: Howard Florey born ... pharmacologist and pathologist, Nobel Prize laureate. Pic. | ||
||1898: Charlotte Moore Sitterly born ... astronomer. Pic search | ||1898: Charlotte Moore Sitterly born ... astronomer. Pic search. | ||
||1900: Ham Fisher born ... cartoonist. | ||1900: Ham Fisher born ... cartoonist. | ||
| Line 54: | Line 54: | ||
||1904: Niels Ryberg Finsen dies ... physician and scientist ... awarded the Nobel Prize in Medicine and Physiology in 1903 "in recognition of his contribution to the treatment of diseases, especially lupus vulgaris, with concentrated light radiation, whereby he has opened a new avenue for medical science." Pic. | ||1904: Niels Ryberg Finsen dies ... physician and scientist ... awarded the Nobel Prize in Medicine and Physiology in 1903 "in recognition of his contribution to the treatment of diseases, especially lupus vulgaris, with concentrated light radiation, whereby he has opened a new avenue for medical science." Pic. | ||
||1904: Evan Tom Davies born ... mathematician and linguist. He studied applications of the Lie derivative as it relates to Riemannian geometry as well as absolute differential calculus. Pic search | ||1904: Evan Tom Davies born ... mathematician and linguist. He studied applications of the Lie derivative as it relates to Riemannian geometry as well as absolute differential calculus. Pic search. | ||
||1905: Severo Ochoa born ... physician and biochemist, Nobel Prize laureate. | ||1905: Severo Ochoa born ... physician and biochemist, Nobel Prize laureate. | ||
| Line 68: | Line 68: | ||
||1911: His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness. | ||1911: His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness. | ||
||1913: Astronomer and academic Lawrence Hugh Aller born. His work concentrated on the chemical composition of stars and nebulae. He was one of the first astronomers to argue that some differences in stellar and nebular spectra were caused by differences in their chemical composition. Pic search | ||1913: Astronomer and academic Lawrence Hugh Aller born. His work concentrated on the chemical composition of stars and nebulae. He was one of the first astronomers to argue that some differences in stellar and nebular spectra were caused by differences in their chemical composition. Pic search. | ||
||1916: Theodore Puck born ... geneticist. Puck was an early pioneer of "somatic cell genetics" and single-cell plating ( i.e. "cloning" .) This work allowed the genetics of human and other mammalian cells to be studied in detail. Also, Puck's team found that humans had 46 chromosomes rather than 48 which had earlier been believed. Pic search | ||1916: Theodore Puck born ... geneticist. Puck was an early pioneer of "somatic cell genetics" and single-cell plating ( i.e. "cloning" .) This work allowed the genetics of human and other mammalian cells to be studied in detail. Also, Puck's team found that humans had 46 chromosomes rather than 48 which had earlier been believed. Pic search. | ||
||1918: Michael J. S. Dewar born ... American theoretical chemist who developed the Dewar-Chatt-Duncanson model. Dewar is known most famously for the development in the 1970s and 1980s of the Semi-empirical quantum chemistry methods, MINDO, MNDO, AM1 and PM3 that are in the MOPAC computer program, and which for the first time enabled the quantitative study of the structure and mechanism of reaction (transition state) of many real (i.e. large) systems. Pic. | ||1918: Michael J. S. Dewar born ... American theoretical chemist who developed the Dewar-Chatt-Duncanson model. Dewar is known most famously for the development in the 1970s and 1980s of the Semi-empirical quantum chemistry methods, MINDO, MNDO, AM1 and PM3 that are in the MOPAC computer program, and which for the first time enabled the quantitative study of the structure and mechanism of reaction (transition state) of many real (i.e. large) systems. Pic. | ||
| Line 108: | Line 108: | ||
||1993: Bruno Pontecorvo dies ... physicist and academic. Pic. | ||1993: Bruno Pontecorvo dies ... physicist and academic. Pic. | ||
||1999: Anneli Cahn Lax dies ... mathematician, who was known for being an editor of the Mathematics Association of America's New Mathematical Library Series, and for her work in reforming mathematics education with the inclusion of language skills. Pic search | ||1999: Anneli Cahn Lax dies ... mathematician, who was known for being an editor of the Mathematics Association of America's New Mathematical Library Series, and for her work in reforming mathematics education with the inclusion of language skills. Pic search. | ||
||2004: Raja Ramanna dies ... physicist and politician. He was associated with and directed India's nuclear program for more than four decades, and also initiated industrial defence programmes for the Indian Armed Forces. Pic. | ||2004: Raja Ramanna dies ... physicist and politician. He was associated with and directed India's nuclear program for more than four decades, and also initiated industrial defence programmes for the Indian Armed Forces. Pic. | ||
||2007: Wolfgang | ||2007: Wolfgang K. H. Panofsky dies ... physicist. Pic search. | ||
||2014: Madis Kõiv dies ... physicist, philosopher, and author. | ||2014: Madis Kõiv dies ... physicist, philosopher, and author. | ||
Revision as of 12:03, 22 April 2020
1054: Composer, mathematician, and astronomer Hermann of Reichenau dies. He wrote a treatise on the science of music, several works on geometry and arithmetic, and astronomical treatises (including instructions for the construction of an astrolabe, at the time a very novel device in Western Europe).
1501: Gerolamo Cardano born. He will be one of the most influential mathematicians of the Renaissance.
1624: Renaissance-era mechanical soldier Clock Head uses Gnomon algorithm functions to fight crimes against mathematical constants.
1625: Mathematician and politician Johan de Witt born. He will derive the basic properties of quadratic forms, an important step in the field of linear algebra.
1769: Polymath and crime-fighter Johann Heinrich Lambert discovers new type of Gnomon algorithm functions which convert map projections into optical projections. These projections will quickly find applications in scrying engine technology.
1844: Mathematician Max Noether born. Noether will contribute to algebraic geometry and the theory of algebraic functions. He will be the father of mathematician Emmy Noether.
1888: Cryptographer and intelligence officer Edward Travis born. Travis will become the operational head of Bletchley Park during World War II, and later become the head of GCHQ.
1910: Astronomer, physicist, and mathematician Arthur Eddington builds new type of scrying engine which detects and prevents crimes against mathematical constants.
1934: Writer and peace activist John Brunner born.
1937: Alice Beta Paragliding published. Many experts believe that the illustration depicts Beta infiltrating the ENIAC program.
1938: Mathematician Lev Schnirelmann dies. He proved that any natural number greater than 1 can be written as the sum of not more than C prime numbers, where C is an effectively computable constant.
1991: Children's author, political cartoonist, illustrator, poet, animator, screenwriter, and filmmaker Theodor Seuss "Ted" Geisel dies. Geisel wrote and illustrated more than 60 books under the pen name Dr. Seuss, including many of the most popular children's books of all time, selling over 600 million copies and being translated into more than 20 languages.
1999: Writer, editor, and actor George Plimpton publishes his account of personally committing math crimes "for the participatory journalistic experience."
2016: Spiral 2 voted Picture of the day by the citizens of New Minneapolis, Canada.