THOUGHTBOX

Remember when I said Eratosthenes was a total boss ? Well, here's the one and only Carl Sagan telling us why.  Watch the video to find out more about how Eratosthenes discovered the Earth's spherical nature in the 3rd century BC.

We're smart people. We live in a world where information is literally at our fingertips, and pretty much any answer can be found online, yet how much do we educated people know about facts and phenomenons we take for granted? Source: Wikipedia Sure, nobody's asking you to know everything - with Google, after all, you don't have to. Yet there are some things we do take for granted. Imagine you were alone in the middle of a green field - no internet, no help - and a curious child asks you a simple question: why is the Earth round ? What would you say? These little questions in life that have big implications - this is what this series is about. I've asked a few friends to answer a simple question: Why is the Earth Round? Here are some of their answers: And here are some of their (and other) answers, quoted: Andrei said: "The Earth is round because it's on an elliptical path around the Sun. Moreover, it is not completely round, it