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* [[:File:130_Sheridan_rear_exterior_(4-up)_web.jpg]]
* [[Fuel oil burner]]

Revision as of 08:34, 23 October 2020

Gnomon Chronicles is a work of fiction and nonfiction by Karl Jones.

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

Permalink: September 30

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