It was around 250 BCE when Eratosthenes was a librarian in the famous library of Alexandria He discovered in his reading that there was a yearly festival in the town of Syene (modern Aswan) on June 20 ...

I’ve been a historian for several years. For six years, I studied the past in college. For nearly a decade, I’ve been employed in the history field. Through all that time, one takeaway ...

eine Methode, alle Primzahlen unterhalb einer gegebenen Schranke N zu finden. Man schreibt zunächst die natürlichen Zahlen von 2 bis N auf. Von diesen markiert (oder streicht) man alle Vielfachen von ...

Eratosthenes, von Kyrene, griechischer Naturforscher und Schriftsteller, * um 284 (274?) v. Chr. in Kyrene (heute Schahhat, Libyen), † um 202 (194?) v. Chr. in Alexandria; Freund von Archimedes und ...