Template:Selected anniversaries/August 23: Difference between revisions
No edit summary |
No edit summary |
||
| Line 26: | Line 26: | ||
||1797: Adhémar Jean Claude Barré de Saint-Venant born ... mechanician and mathematician who contributed to early stress analysis and also developed the unsteady open channel flow shallow water equations, also known as the Saint-Venant equations that are a fundamental set of equations used in modern hydraulic engineering. Pic. | ||1797: Adhémar Jean Claude Barré de Saint-Venant born ... mechanician and mathematician who contributed to early stress analysis and also developed the unsteady open channel flow shallow water equations, also known as the Saint-Venant equations that are a fundamental set of equations used in modern hydraulic engineering. Pic. | ||
||1806: Charles-Augustin de Coulomb dies ... physicist and engineer. | ||1806: Charles-Augustin de Coulomb dies ... physicist and engineer. Pic. | ||
||1811: Auguste Bravais born ... physicist known for his work in crystallography, the conception of Bravais lattices, and the formulation of Bravais law. Pic. | ||1811: Auguste Bravais born ... physicist known for his work in crystallography, the conception of Bravais lattices, and the formulation of Bravais law. Pic. | ||
| Line 38: | Line 38: | ||
||1842: Osborne Reynolds born ... innovator in the understanding of fluid dynamics. Separately, his studies of heat transfer between solids and fluids brought improvements in boiler and condenser design. Pic. | ||1842: Osborne Reynolds born ... innovator in the understanding of fluid dynamics. Separately, his studies of heat transfer between solids and fluids brought improvements in boiler and condenser design. Pic. | ||
||1847: Sarah Frances Whiting born ... physicist and astronomer. | ||1847: Sarah Frances Whiting born ... physicist and astronomer. Pic. | ||
||1869: Robert William Theodore Gunther born ... historian of science, zoologist, and founder of the Museum of the History of Science, Oxford. | ||1869: Robert William Theodore Gunther born ... historian of science, zoologist, and founder of the Museum of the History of Science, Oxford. | ||
Revision as of 08:12, 18 February 2019
1638: Descartes' proposal. René Descartes, in a letter to Marin Mersenne, proposed his folium (x-cubed + y-cubed = 2axy) as a test case to challenge Pierre de Fermat's differentiation techniques. To Descartes' embarrassment, Fermat's method worked.
1829: Mathematician and historian Moritz Cantor born. He will write Vorlesungen über Geschichte der Mathematik, which traces the history of mathematics up to 1799.
1946: Signed first edition of Alice and Niles Dancing sells for ten thousand dollars in charity auction to benefit victims of crimes against mathematical constants.
1966: Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
1999: Sensors on the Mir spacecraft detect patterns of electricity which reveal existence of a vast electrical intelligence in the Earth's ionosphere, now known as AESOP.
1999: Biochemist and crystallographer John Kendrew dies. He shared the 1962 Nobel Prize for chemistry with Max Perutz for determining the atomic structures of proteins using X-ray crystallography.
2017: Reality TV show Dennis Paulson of Mars wins Pulitzer Prize for Most Innovative Programming.