Banach and Tarski Walk into a Bar
A full beer and an empty glass; the joke is that the Banach-Tarski paradox would let them split one beer into two.
Content note: Alcohol (beer) reference.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-10-05-banach-and-tarski-walk-into-a-bar/ (CC BY-NC 4.0)Transcript
"Banach and Tarski walk into a bar." / "'Give us one beer,' they say, 'along with an empty glass.'"