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== Diaries == | == Diaries == | ||
* [[Diary (May 20, | * [[Diary (May 20, 2020)|My online diary (May 21)]] | ||
* [[War Diaries (May 21) (nonfiction)|War Diaries (May 21)]] - entries from historic diaries and letters | * [[War Diaries (May 21) (nonfiction)|War Diaries (May 21)]] - entries from historic diaries and letters | ||
Revision as of 04:26, 21 May 2020
Gnomon Chronicles is a work of fiction and nonfiction by Karl Jones (nonfiction).
Diaries
- My online diary (May 21)
- War Diaries (May 21) - entries from historic diaries and letters
Are You Sure ...
... that the first known calculation of the golden ratio, expressed inversely as a decimal of "about 0.6180340", was written in 1597 by astronomer and mathematician Maestlin in a letter to Johannes Kepler?
On This Day in History and Fiction: September 30
1550: Astronomer and mathematician Michael Maestlin born. He will be a mentor to Johannes Kepler, and play a sizable part in his adoption of the Copernican system.
1882: Thomas Edison's first commercial hydroelectric power plant (later known as Appleton Edison Light Company) begins operation on the Fox River in Appleton, Wisconsin, United States.
1913: Mathematician Samuel Eilenberg born. He will co-found category theory with Saunders Mac Lane, and propose the Eilenberg swindle (a construction applying the telescoping cancellation idea to projective modules).
Permalink: September 30
COVID-19: Prophylactic mashup
Superprophylacticmeasuresuntilvaccinedoses!
Even though the Social Distance and what it Imposes
If we do this well enough we'll flatten the Prognosis
Superprophylacticmeasuresuntilvaccinedoses!
What next?
General interest:
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