How do you measure the world with nothing but a stick and a question? Harmonia remembers Eratosthenes of Cyrene-the ancient librarian who watched shadows, measured sunlight, and dared to calculate the circumference of the earth. In a city of scrolls and doubters, Eratosthenes' quiet curiosity changed how humanity saw itself. Through sunlit moments, doubts, and stubborn hope, this episode weaves a story of memory, courage, and the endless quest to understand our place in the universe. For the young and the curious-and anyone who's ever wondered what lies just beyond the horizon.
Transcript available at: https://harmonia.email/podcast-episode/shadow-stick
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