Template:Selected anniversaries/July 21: Difference between revisions

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||1575: Francesco Maurolico dies (21/22 July 1575) ... mathematician and astronomer. He made contributions to the fields of geometry, optics, conics, mechanics, music, and astronomy. Pic.
||1575: Francesco Maurolico dies (21/22 July 1575) ... mathematician and astronomer. He made contributions to the fields of geometry, optics, conics, mechanics, music, and astronomy. Pic.


File:Giuseppe Piazzi.jpg|link=Giuseppe Piazzi (nonfiction)|1766: Priest, mathematician, and astronomer [[Giuseppe Piazzi (nonfiction)|Giuseppe Piazzi]] uses [[Gnomon algorithm]] techniques to forecast the theoretical existence of the dwarf planet Ceres.
||1620: Jean Picard born ... priest and astronomer. Pic: sundial.
 
|File:Sir Sandford Fleming.jpg|link=Sandford Fleming (nonfiction)|1800: Engineer, inventor, and [[APTO]] agent [[Sandford Fleming (nonfiction)|Sandford Fleming]] ... TO DO.


File:Henri Victor Regnault 1860s.jpg|link=Henri Victor Regnault (nonfiction)|1810: Chemist and physicist [[Henri Victor Regnault (nonfiction)|Henri Victor Regnault]] born.  He will be an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s.  
File:Henri Victor Regnault 1860s.jpg|link=Henri Victor Regnault (nonfiction)|1810: Chemist and physicist [[Henri Victor Regnault (nonfiction)|Henri Victor Regnault]] born.  He will be an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s.  
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||1907: John Henry Manley born ... physicist who worked with J. Robert Oppenheimer at the University of California, Berkeley before becoming a group leader during the Manhattan Project. Pic.
||1907: John Henry Manley born ... physicist who worked with J. Robert Oppenheimer at the University of California, Berkeley before becoming a group leader during the Manhattan Project. Pic.


File:John_Fleming_in_Fleming_tube.jpg|link=John Ambrose Fleming (nonfiction)|1910: Physicist [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] delivers lecture from within giant novelty Fleming tube.
File:Marshall McLuhan.jpg|link=Marshall McLuhan (nonfiction)|1911: Professor of English and philosopher of communication theory [[Marshall McLuhan (nonfiction)|Marshall McLuhan]] born. He will coin the expressions "the medium is the message" and "global village".


File:Marshall McLuhan.jpg|link=Marshall McLuhan (nonfiction)|1911: Professor of English and philosopher of communication theory [[Marshall McLuhan (nonfiction)|Marshall McLuhan]] born. He will coin the expressions "the medium is the message" and "global village".
||1913: Archimedes Patti born ... was a lieutenant colonel in the United States Army and former Office of Strategic Services officer who headed operations in Kunming and Hanoi in 1945. Patti is known for having worked closely with the Viet Minh and Ho Chi Minh, leader of the Vietnamese independence movement and future president of North Vietnam. Pic search.


||1919: The dirigible Wingfoot Air Express crashes into the Illinois Trust and Savings Building in Chicago, killing 12 people.
||1919: The dirigible Wingfoot Air Express crashes into the Illinois Trust and Savings Building in Chicago, killing 12 people.
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||1925: Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100.
||1925: Scopes Trial: In Dayton, Tennessee, high school biology teacher John T. Scopes is found guilty of teaching evolution in class and fined $100.


||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory.
||1925: Giovanni Frattini dies ... mathematician, noted for his contributions to group theory. Pic.


||1926: John Leech born ... mathematician working in number theory, geometry and combinatorial group theory. He is best known for his discovery of the Leech lattice in 1965. He also discovered Ta(3) in 1957. Pic: https://alchetron.com/John-Leech-(mathematician)
||1926: John Leech born ... mathematician working in number theory, geometry and combinatorial group theory. He is best known for his discovery of the Leech lattice in 1965. He also discovered Ta(3) in 1957. Pic: https://alchetron.com/John-Leech-(mathematician)


||1959: Edmund Newton Harvey dies ... zoologist. He was acknowledged as one of the leading authorities on bioluminescence.
||1959: Edmund Newton Harvey dies ... zoologist. He was acknowledged as one of the leading authorities on bioluminescence. Pic.


||1959: NS Savannah, the first nuclear-powered cargo-passenger ship, is launched as a showcase for Dwight D. Eisenhower's "Atoms for Peace" initiative.
||1959: NS Savannah, the first nuclear-powered cargo-passenger ship, is launched as a showcase for Dwight D. Eisenhower's "Atoms for Peace" initiative.
File:Gemini-10 Agena firing.jpg|link=Gemini 10 (nonfiction)|1966: Human spaceflight: [[Gemini 10 (nonfiction)|Gemini 10]] recovered after a 70-hour mission that included docking with an orbiting Agena target vehicle.


||1966: Francesco Paolo Cantelli dies ... mathematician. Pic.
||1966: Francesco Paolo Cantelli dies ... mathematician. Pic.


||1966: Philipp Frank dies ... physicist, mathematician, and philosopher.  He was a logical-positivist, and a member of the Vienna Circle.  Pic search yes: https://www.google.com/search?q=philipp+frank+mathematician
||1966: Philipp Frank dies ... physicist, mathematician, and philosopher.  He was a logical-positivist, and a member of the Vienna Circle.  Pic search.
 
||1967: Russian journalist Dmitry Kholodov born.  He will be assassinated while investigating corruption in the armed forces. Pic.


||1969: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon.
||1969: At 02:56 UTC, astronaut Neil Armstrong becomes the first person to walk on the Moon.
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||2014: Stephen H. Schanuel dies ... mathematician working in the fields of abstract algebra and category theory, number theory, and measure theory. He stated a conjecture in the field of transcendental number theory, which remains an important open problem to this day. Schanuel was a professor emeritus of mathematics at University at Buffalo. Pic: http://rfcwalters.blogspot.com/2014/11/stephen-h-schanuel-and-dietmar.html
||2014: Stephen H. Schanuel dies ... mathematician working in the fields of abstract algebra and category theory, number theory, and measure theory. He stated a conjecture in the field of transcendental number theory, which remains an important open problem to this day. Schanuel was a professor emeritus of mathematics at University at Buffalo. Pic: http://rfcwalters.blogspot.com/2014/11/stephen-h-schanuel-and-dietmar.html


||2016: Roger Godement dies ... mathematician, known for his work in functional analysis as well as his expository books.
||2016: Roger Godement dies ... mathematician, known for his work in functional analysis as well as his expository books. Pic.
 
File:Ultravore.jpg|link=Ultravore|2016: Synthetic organism [[Ultravore]] begins consuming radioactive chemical waste at the [[Hanford Site (nonfiction)|Hanford Site]].
 
File:Dragons_Fighting.jpg|link=Dragons Fighting (nonfiction)|2018: ''[[Dragons Fighting (nonfiction)|Dragons Fighting]]'' voted Pictire of the Day by the citizens of [[New Minneapolis, Canada]].


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Latest revision as of 10:16, 7 February 2022