2007-09-13 02:36:24 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
It is not certain because many observers watching ships appear over the horizon would come to that conclusion.
Aristotle believed the earth was round, and an astronomer in India said the earth was a sphere in the 8th century BC. By 250 BC the circumference of the earth was measured in Egypt.
2007-09-13 04:27:25 · answer #1 · answered by meg 7 · 0⤊ 0⤋
I have come to that conclusion. At least close to spherical.
The idea of it being flat or cubical is just crazy.
If you mean who came to it first, probably ancient mariners who could see the curve of the earth in all directions.
2007-09-13 02:42:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Galileo Galilee.
2007-09-13 02:54:15 · answer #3 · answered by Jeremy T 2 · 0⤊ 0⤋
It was Galileo. Everyone thought the earth was flat and he told them it was round. It has gone way back to the 1500's.
2007-09-13 02:50:59 · answer #4 · answered by blazek35 5 · 0⤊ 0⤋
Eratosthenes a north african native:
Here is an easy to relate web site:
http://members.aol.com/richardbdavis1/eratosthenes.html
Here is More:
http://www-istp.gsfc.nasa.gov/stargaze/Scolumb.htm
2007-09-13 03:56:25 · answer #5 · answered by a simple man 6 · 0⤊ 0⤋
the satellite
2007-09-13 02:42:18 · answer #6 · answered by Anonymous · 0⤊ 0⤋