Template:Selected anniversaries/December 23: Difference between revisions
No edit summary |
No edit summary |
||
| Line 78: | Line 78: | ||
||December 23 is the fictional date of the [[Zendian problem (nonfiction)|Zendian problem]], a US Army cryptography training exercise involving 375 radio messages said to have been intercepted on December 23 by the US Army contingent of a United Nations force landed on the fictional island of Zendia in the Pacific Ocean. | ||December 23 is the fictional date of the [[Zendian problem (nonfiction)|Zendian problem]], a US Army cryptography training exercise involving 375 radio messages said to have been intercepted on December 23 by the US Army contingent of a United Nations force landed on the fictional island of Zendia in the Pacific Ocean. | ||
File:Blue City Sunset.jpg|link=Blue City Sunset (nonfiction)|2016: Signed first edition of ''[[Blue City Sunset (nonfiction)|Blue City Sunset]]'' purchased for an undisclosed amount by "a well-known [[ | File:Blue City Sunset.jpg|link=Blue City Sunset (nonfiction)|2016: Signed first edition of ''[[Blue City Sunset (nonfiction)|Blue City Sunset]]'' purchased for an undisclosed amount by "a well-known [[Gnomon algorithm]] theorist residing in [[New Minneapolis, Canada]]." | ||
</gallery> | </gallery> | ||
Revision as of 20:55, 23 December 2019
1722: Mathematician and academic Pierre Varignon dies. He simplified the proofs of many propositions in mechanics, adapted Leibniz's calculus to the inertial mechanics of Newton's Principia, and treated mechanics in terms of the composition of forces.
1822: Inventor and engineer Wilhelm Bauer born. He will design and invent submarines.
1933: Mathematician Rikitarō Fujisawa dies. During the Meiji era he was instrumental in reforming mathematics education in Japan and establishing the ideas of European mathematics in Japan.
1948: Mathematician Wilhelm Ackermann publishes his research on applications of the Ackermann function to detecting and preventing crimes against mathematical constants.
2016: Signed first edition of Blue City Sunset purchased for an undisclosed amount by "a well-known Gnomon algorithm theorist residing in New Minneapolis, Canada."