Template:Selected anniversaries/October 19: Difference between revisions
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||1991: Naum Yakovlevich Vilenkin born ... mathematician, an expert in combinatorics. He is best known as the author of many books in recreational mathematics aimed at middle and high school students. Pic: https://www.goodreads.com/author/show/944039.N_Ya_Vilenkin | ||1991: Naum Yakovlevich Vilenkin born ... mathematician, an expert in combinatorics. He is best known as the author of many books in recreational mathematics aimed at middle and high school students. Pic: https://www.goodreads.com/author/show/944039.N_Ya_Vilenkin | ||
||1992: Magnus Pyke dies ... scientist and television host. | ||1992: Magnus Pyke dies ... scientist and television host. Pic. | ||
||1994: The Pentium FDIV bug error was isolated to the Pentium Pro chip by Professor Thomas R. Nicely at Lynchburg College, Virginia, USA while working on Brun's constant (the sum of the reciprocals of the odd twin primes). Nicely had noticed some inconsistencies in the calculations on June 13, 1994 shortly after adding a Pentium system to his group of computers, but was unable to eliminate other factors (such as programming errors, motherboard chipsets, etc.) until October 19, 1994. On October 24, 1994 he reported the issue to Intel. The bug was rarely encountered by average users (Byte magazine estimated that 1 in 9 billion floating point divides with random parameters would produce inaccurate results) | ||1994: The Pentium FDIV bug error was isolated to the Pentium Pro chip by Professor Thomas R. Nicely at Lynchburg College, Virginia, USA while working on Brun's constant (the sum of the reciprocals of the odd twin primes). Nicely had noticed some inconsistencies in the calculations on June 13, 1994 shortly after adding a Pentium system to his group of computers, but was unable to eliminate other factors (such as programming errors, motherboard chipsets, etc.) until October 19, 1994. On October 24, 1994 he reported the issue to Intel. The bug was rarely encountered by average users (Byte magazine estimated that 1 in 9 billion floating point divides with random parameters would produce inaccurate results) | ||
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||2000: Karl Stein dies ... mathematician. He is well known for complex analysis and cryptography. Stein manifolds and Stein factorization are named after him. Pic. | ||2000: Karl Stein dies ... mathematician. He is well known for complex analysis and cryptography. Stein manifolds and Stein factorization are named after him. Pic. | ||
||2002: Nikolay Rukavishnikov dies ... physicist and astronaut. | ||2002: Nikolay Rukavishnikov dies ... physicist and astronaut. Pic. | ||
||2002: Peter Gabriel Bergmann dies ... physicist best known for his work with Albert Einstein on a unified field theory encompassing all physical interactions. He also introduced primary and secondary constraints into mechanics. Pic: https://medium.com/@phalpern/desperately-seeking-einsteins-assistant-e68818d28f48 | ||2002: Peter Gabriel Bergmann dies ... physicist best known for his work with Albert Einstein on a unified field theory encompassing all physical interactions. He also introduced primary and secondary constraints into mechanics. Pic: https://medium.com/@phalpern/desperately-seeking-einsteins-assistant-e68818d28f48 | ||
||2007: Winifred Asprey dies ... mathematician and computer scientist. | ||2007: Winifred Asprey dies ... mathematician and computer scientist. Pic. | ||
||2013: Vladimir Keilis-Borok dies ... mathematical geophysicist and seismologist. Pic: http://dailybruin.com/2013/10/31/keilis-borok-remembered-for-earthquake-prediction-research/ | ||2013: Vladimir Keilis-Borok dies ... mathematical geophysicist and seismologist. Pic: http://dailybruin.com/2013/10/31/keilis-borok-remembered-for-earthquake-prediction-research/ | ||
Revision as of 05:05, 18 September 2019
1433: Priest, humanist philosopher, and astrologer Marsilio Ficino born. His Florentine Academy, an attempt to revive Plato's Academy, will influence the direction and tenor of the Italian Renaissance and the development of European philosophy.
1900: Max Planck discovers the law of black-body radiation (Planck's law).
1910: Astrophysicist, astronomer, and mathematician Subrahmanyan Chandrasekhar born. He will share the 1983 Nobel Prize for Physics "for his theoretical studies of the physical processes of importance to the structure and evolution of the stars".
1973: Watergate scandal: President Richard Nixon rejects an Appeals Court decision that he turn over the Watergate tapes.
2017: Robot 7 voted Picture of the Day by the citizens of New Minneapolis, Canada.