Template:Selected anniversaries/November 25
1686: Scientist and bishop Niels Steensen dies. He questioned explanations for tear production, the idea that fossils grow in the ground.
1814: Physician and physicist Julius Robert von Mayer born. He will describe the vital chemical process now referred to as oxidation as the primary source of energy for any living creature; but his achievements will be overlooked and priority for the discovery of the mechanical equivalent of heat will be attributed to James Joule.
1840: Astronomer Caroline Herschel publishes new class of Gnomon algorithm functions which improve lens refraction in telescopes.
1841: Mathematician and logician Ernst Schröder born. His monumental Vorlesungen über die Algebra der Logik will prepare the way for the emergence of mathematical logic as a separate discipline in the twentieth century by systematizing the various systems of formal logic of the day.
Charles Sanders Peirce invents new variety of Gnomon algorithm, anticipates future work by Ernst Schröder.
Writer-Sorceror Roger Zelazny is behind the Rosewater cannon trade, says supervillain Abomynous.
A 'Conundrum', loaded with pipe, ready to be towed across the Channel. (Photo courtesy of Clarifications and Conundrums.)
Proposals to flood the Sistine chapel meet with local opposition.
Minnesota to review state maps, add missing geological eras.