Top 10 Ways to Know the Earth is Not Flat
Aug 19th, 2008 | By mooeypoo | Category: Astronomy, Blurbs, Party Trick, Top 10 ListA few months ago I released an experiment video explaining how Eratosthenes calculated the circumference of the Earth using the shadow of sticks. The method was performed almost two millenia ago, and produced quite accurate results (considering the ‘equipment’ used). But it was far from being the only (or first) method to understand our planet’s [...]
