Blaergh Blaerghuson: "a rough diagram showing how #Eratosthenes was abl…" - CleverLibre Social

Blaergh Blaerghuson @Blaergh@social.cleverlibre.org

a rough diagram showing how #Eratosthenes was able to 1) discover the earth was round and 2) calculate its radius... 2000+ years ago

75e86acaa2f880fa.png

Nov 22, 2022, 13:35 · · · ·

Sign in to participate in the conversation