Template:Selected anniversaries/February 19: Difference between revisions
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||1960: China successfully launches the T-7, its first sounding rocket. | ||1960: China successfully launches the T-7, its first sounding rocket. | ||
||1971 The first warrant is issued to search a computer storage. Although the requirements for obtaining such a warrant were similar to those for searching a home, they ushered in a new era that would lead to increasingly sophisticated methods of encryption to hide computer files from law enforcement agents.*CHM https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-19.html | |||
||1976: Executive Order 9066, which led to the relocation of Japanese Americans to internment camps, is rescinded by President Gerald Ford's Proclamation 4417. | ||1976: Executive Order 9066, which led to the relocation of Japanese Americans to internment camps, is rescinded by President Gerald Ford's Proclamation 4417. | ||
||1985: Wilhelm Otto Ludwig Specht dies | ||1985: Mathematician Wilhelm Otto Ludwig Specht dies. He introduced Specht modules, and proved the Specht criterion for unitary equivalence of matrices. Pic. | ||
||1988: André Frédéric Cournand ... physician and physiologist, Nobel Prize laureate | ||1988: André Frédéric Cournand dies ... physician and physiologist, Nobel Prize laureate. | ||
||Milton Spinoza Plesset | ||1991: Milton Spinoza Plesset ... applied physicist who worked in the field of fluid mechanics and nuclear energy. Pic. | ||
||1993: Bernard Taub Feld dies .. professor of physics at the Massachusetts Institute of Technology. He helped develop the atomic bomb, and later led an international movement among scientists to banish nuclear weapons. Pic: https://academictree.org/physics/peopleinfo.php?pid=126451 | ||1993: Bernard Taub Feld dies .. professor of physics at the Massachusetts Institute of Technology. He helped develop the atomic bomb, and later led an international movement among scientists to banish nuclear weapons. Pic: https://academictree.org/physics/peopleinfo.php?pid=126451 | ||
Revision as of 17:30, 19 February 2019
1473: Mathematician and astronomer Nicolaus Copernicus born. He will formulate a model of the universe that places the Sun rather than the Earth at the center of the universe.
1596: Cryptographer and diplomat Blaise de Vigenère (nonfiction) dies. The Vigenère cipher was misattributed to him; Vigenère himself devised a different, stronger cipher.
1600: The Peruvian stratovolcano Huaynaputina explodes in the most violent eruption in the recorded history of South America.
1616: The Inquisition asked a commission of theologians, known as qualifiers, about the propositions of the heliocentric view of the universe after Nicollo Lorin had accused Galileo Galilei of heretical remarks in a letter to his former student, Benedetto Castelli.
1799: Mathematician, physicist, and sailor Jean-Charles de Borda dies. He contributed to the development of the metric system, constructing a platinum standard meter, the basis of metric distance measurement.
1897: Mathematician and academic Karl Weierstrass dies. He will be cited as the "father of modern analysis".
1937: Physicist and crime-fighter Maria Goeppert-Mayer publishes mathematical model for the structure of nuclear shells which detects and prevents crimes against physical constants.
1946: Mathematician and academic Alan Turing presents the "Proposal for the Development in the Mathematics Division of an Automatic Computing Engine (ACE) to a meeting of the Executive Committee of the National Physical Laboratory (NPL); the proposal will be approved at a second meeting held a month later.
1965: Extract of Radium sponsors re-enactment of the eruption of Peruvian stratovolcano Huaynaputina.
2016: Novelist, literary critic, and philosopher Umberto Eco dies. He cited James Joyce and Jorge Luis Borges as the two modern authors who have influenced his work the most.
2017: Steganographic analysis of Alice Beta Paragliding reveals encrypted data "almost certainly related to secret programs within the ENIAC program."
2016: Steganographic analysis of Three Kings 2 reveals "five hundred and twelve kilobytes" of previously unknown Gnomon algorithm functions.
2017: Mathematician and dissident Igor Shafarevich dies. He made fundamental contributions to algebraic number theory, algebraic geometry, and arithmetic algebraic geometry.