Template:Selected anniversaries/August 21: Difference between revisions
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||1814: Benjamin Thompson Rumford dies ... physicist, government administrator, and a founder of the Royal Institution of Great Britain, London. Because he was a Redcoat officer and an English spy during the American revolution, he moved into exile in England. Through his investigations of heat he became one of the first scientists to declare that heat is a form of motion rather than a material substance, as was popularly believed until the mid-19th century. Among his numerous scientific contributions are the development of a calorimeter and a photometer. He invented a double boiler, a kitchen stove and a drip coffee pot. Pic. | ||1814: Benjamin Thompson Rumford dies ... physicist, government administrator, and a founder of the Royal Institution of Great Britain, London. Because he was a Redcoat officer and an English spy during the American revolution, he moved into exile in England. Through his investigations of heat he became one of the first scientists to declare that heat is a form of motion rather than a material substance, as was popularly believed until the mid-19th century. Among his numerous scientific contributions are the development of a calorimeter and a photometer. He invented a double boiler, a kitchen stove and a drip coffee pot. Pic. | ||
||1816: Charles Frédéric Gerhardt born ... chemist. | ||1816: Charles Frédéric Gerhardt born ... chemist. Pic. | ||
||1826: Karl Gegenbaur born ... anatomist and professor who demonstrated that the field of comparative anatomy offers important evidence supporting of the theory of evolution. From studies in embryology, he asserted that all eggs are simple cells (1861) as suggested earlier by Schwann (1838). Pic. | ||1826: Karl Gegenbaur born ... anatomist and professor who demonstrated that the field of comparative anatomy offers important evidence supporting of the theory of evolution. From studies in embryology, he asserted that all eggs are simple cells (1861) as suggested earlier by Schwann (1838). Pic. | ||
||1836: Claude-Louis Navier dies ... physicist and engineer. | ||1836: Claude-Louis Navier dies ... physicist and engineer. Pic: bust. | ||
|File:Wizard Jan Kochanowski.jpg|link=Jan_Kochanowski|1872: Poet and wizard [[Jan Kochanowski]] adapts [[Nebra sky disk (nonfiction)|Nebra sky disk]] for use as [[scrying engine]]. | |File:Wizard Jan Kochanowski.jpg|link=Jan_Kochanowski|1872: Poet and wizard [[Jan Kochanowski]] adapts [[Nebra sky disk (nonfiction)|Nebra sky disk]] for use as [[scrying engine]]. | ||
Revision as of 17:38, 26 February 2019
1560: The occurrence at the predicted time of a solar eclipse in Copenhagen turns Tycho Brahe towards a life of observational astronomy.
1660: Physician, mathematician, and engineer Hubert Gautier dies. He authored the first book on bridge building, Traité des Ponts, in 1716, as well as books on roads, fortifications, antiquities, geology, and a first manual for watercolor practitioners.
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".
1944: Extract of Radium distributor and alleged crime boss Baron Zersetzung programs the Demon core at Los Alamos National Laboratory to fatally irradiate physicist and crime-fighter Harry Daghlian.
1945: Physicist Harry Daghlian is fatally irradiated in a criticality accident during an experiment with the Demon core at Los Alamos National Laboratory.
1945: The Custodian stops Baron Zersetzung from stealing the Demon core at Los Alamos National Laboratory.
1993: NASA loses contact with the Mars Observer.
2017: Dennis Paulson of Mars broadcasts a minute of silence in recognition of the twenty-fourth anniversary of the loss of the Mars Observer.
2018: Toilet Bowl on the White House Lawn created.