Kategorie:
Wissen und Wissenschaft
Kanal:
60-Second Science
Datum:
29. Dezember 2023, 21:55
Stufe:
B1-B2 (Mittelstufe)
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In 2013 a new user named Cleo took an online math forum by storm with unproved answers. Today she’s an urban legend. But who was she? A 2023 editor's pick.