Why did greek scientist study the circumference of earth?

Answer 1

Greek scientists study the circumference of earth because science flourishes the Hellenistic era.

Answer 2

Eratosthenes 276 BC - 195 BC, proved that the earth was round AND calculated the earth's circumference with less than 1% error, using this method.

In Alexandria, using the shadow of a stick (like a solar clock) he saw that, at noon, on the summer solstice, the angle of elevation of the sun would be 1/50 of a full circle south of the zenith (the highest point of the Sun). In Aswan, 500 miles (5000 stadia) due South, the angle was zero.

So its 700 stadia (70 miles) per degree. 360 X 70 = 25.200 miles. Actual circumference 24.900 miles.

Answer 3

Greek scientists study the circumference of earth because science flourishes the Hellenistic era.