September 26

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Stained Glass Raccoon.

Better Than News

Beyond Plausible

In Other Words

Are You Sure

... that mathematician and astronomer August Ferdinand Möbius discovered the Möbius strip, a non-orientable two-dimensional surface with only one side when embedded in three-dimensional Euclidean space?

• ... that Lieutenant Colonel Stanislav Yevgrafovich Petrov (1939–2017) of the Soviet Air Defense Forces who became known as "the man who single-handedly saved the world from nuclear war" for his role in the Soviet nuclear false alarm incident on 26 November 1983?

Selected Anniversaries

Topic of the Day

Shredding Machines