How ancient astronomers measured the size of the Earth?

by A. Sokolowski Geometry (Ancient Greek:  geo- “earth“, -metron “measurement“) was originally dealing with measuring of the earth.  Today, geometry has wider meaning: it is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. Geometry arose independently in a number of early cultures as a … Continue reading How ancient astronomers measured the size of the Earth?