Eratosthenes of Cyrene was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. His work is comparable to what is now known as the study of geography, and he introduced some of the terminology still used today.
His name was lost to antiquity. Certainly the Greeks knew the world was round by 400 BCE, by that time they had measured the distance to the moon in earth radii. The trouble was, they did not know the circumference of the earth. Eratosthenes the Greek worked this out around 250 BCE from documents at the Library in Alexandria, on the coast of Egypt, which mentioned a well on the Tropic of Cancer in southern Egypt with curious properties on the summer solstice.
Eratosthenes
Ra is not greek he is the egyptian god of the sun
(mythology) The Greek name for the Egyptian mythological figure. The Egyptian name is w:Apep, Apep.(astronomy) A near-earth asteroid designated with the permanent number 99942. There is a Wikipedia article on W:99942 Apophis, 99942 Apophis.
Copernicus.
It was Ptolemy, an ancient Greek scientist, who gave his name to the theory.
He developed a better geocentric model than the one that was made before it
In Greek mythology, the goddess of the earth is Gaia Gaia is the greek goddess of earth. Geb is the Egyptian god of earth.
from Greek scientist
Eratosthenes did.
Thales of Miletus
Aristotle and Ptolemy - pick one.
No one lifted the earth, but Archimedes (a great scientist and mathematician) claimed that he could do it.
He was Greek.
She was Egyptian and Greek. I thought she was purely Greek by birth.
There is no evidence Egyptian and Greek mathematics are linked.
Greek.
No, but she though that she was Egyptian. She was actually Greek.
no the greek did not invent it . a greek scientist invented it.