Template:Selected anniversaries/April 5: Difference between revisions
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File:Blaise_de_Vigenère.png|link=Blaise de Vigenère (nonfiction)|1523: Cryptographer and diplomat [[Blaise de Vigenère (nonfiction)]] born. The Vigenère cipher will be misattributed to him; Vigenère himself will devise a different, stronger cipher. | File:Blaise_de_Vigenère.png|link=Blaise de Vigenère (nonfiction)|1523: Cryptographer and diplomat [[Blaise de Vigenère (nonfiction)]] born. The Vigenère cipher will be misattributed to him; Vigenère himself will devise a different, stronger cipher. | ||
File:Albrecht Dürer self-portrait.jpg|link=Albrecht Dürer (nonfiction)|1524: Painter, engraver, mathematician, and freelance [[APTO]] journalist [[Albrecht Dürer (nonfiction)|Albrecht Dürer]] publicly accuses the [[House of Malevecchio]] of committing a wide range of [[crimes against mathematical constants]], including shape theft. | |||
||1588: Thomas Hobbes born ... philosopher, considered to be one of the founders of modern political philosophy. Hobbes is best known for his 1651 book ''Leviathan'', which expounded an influential formulation of social contract theory. In addition to political philosophy, Hobbes also contributed to a diverse array of other fields, including history, jurisprudence, geometry, the physics of gases, theology, ethics, and general philosophy. Pic. | ||1588: Thomas Hobbes born ... philosopher, considered to be one of the founders of modern political philosophy. Hobbes is best known for his 1651 book ''Leviathan'', which expounded an influential formulation of social contract theory. In addition to political philosophy, Hobbes also contributed to a diverse array of other fields, including history, jurisprudence, geometry, the physics of gases, theology, ethics, and general philosophy. Pic. | ||
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||1950: Marc Voorhoeve born ... mathematician who introduced the Voorhoeve index of a complex function in 1976. Pic: http://wwwis.win.tue.nl/~mvoorhoe/ | ||1950: Marc Voorhoeve born ... mathematician who introduced the Voorhoeve index of a complex function in 1976. Pic: http://wwwis.win.tue.nl/~mvoorhoe/ | ||
||1951: Cold War: Ethel and Julius Rosenberg are sentenced to death for spying for the Soviet Union. | ||1951: Cold War: Ethel and Julius Rosenberg are sentenced to death for spying for the Soviet Union. Pic. | ||
||1955: 1955 On the 5th of April, 1955, Nobel laureate Bertrand Russell sent a following letter to Albert Einstein along with a rough draft of what would soon be known as the Russell-Einstein Manifesto - a written warning to the world's population on the dangers of nuclear weapons, and a plea for all leaders to avoid war when faced with conflict - and asked him to be both a signatory and supporter. https://pballew.blogspot.com/2019/04/on-this-day-in-math-april-5.html | ||1955: 1955 On the 5th of April, 1955, Nobel laureate Bertrand Russell sent a following letter to Albert Einstein along with a rough draft of what would soon be known as the Russell-Einstein Manifesto - a written warning to the world's population on the dangers of nuclear weapons, and a plea for all leaders to avoid war when faced with conflict - and asked him to be both a signatory and supporter. https://pballew.blogspot.com/2019/04/on-this-day-in-math-april-5.html | ||
Revision as of 12:15, 21 May 2019
1523: Cryptographer and diplomat Blaise de Vigenère (nonfiction) born. The Vigenère cipher will be misattributed to him; Vigenère himself will devise a different, stronger cipher.
1524: Painter, engraver, mathematician, and freelance APTO journalist Albrecht Dürer publicly accuses the House of Malevecchio of committing a wide range of crimes against mathematical constants, including shape theft.
1622: Mathematician and scientist Vincenzo Viviani born. In 1660, Viviani and Giovanni Alfonso Borelli will conduct an experiment to determine the speed of sound. Timing the difference between the seeing the flash and hearing the sound of a cannon shot at a distance, they will calculate a value of 350 meters per second (m/s), considerably better than the previous value of 478 m/s obtained by Pierre Gassendi.
1827: Surgeon and scientist Joseph Lister born. He will pioneer antiseptic surgery, performing the first antiseptic surgery in 1865.
1869: Physicist, mathematician, and engineer Sergey Chaplygin born. He will be known for mathematical formulas such as Chaplygin's equation, and for a hypothetical substance in cosmology called Chaplygin gas, named after him.
1870: Adventurer Wallace War-Heels publishes autobiography.
1900: Mathematician, economist, and academic Joseph Louis François Bertrand dies. He worked in the fields of number theory, differential geometry, probability theory, economics and thermodynamics.
1910: Havelock and Nikola Tesla share Nobel Prize in Physics for research into electrical field modulation and data transmission.
1976: Businessman, investor, aviator, film director, and philanthropist Howard Hughes dies. He was known during his lifetime as one of the most financially successful individuals in the world.