This dietary pyramid was suggested by a Harvard-led group with substantial input from Greek scientists [ 13 ] .

It was a discovery made near the city of Aswan, at the bottom of an ancient well by a Greek scientist and philosopher, Eratosthanes.

These discoveries were contrary to the teachings of the ancient Greek scientist and philosopher Aristotle, many of whose ideas had for centuries been accepted without question.

The principle that is used to model a balloon that rises when it contains helium on the earth is named after a Greek scientist (Archimedes).

Anaximenes, an early Greek scientist, believed strongly that the earth was rectangular in shape.

However, not all Greek scientists accepted the geocentric (Earth-centered) model of the Universe.

"That old Greek scientist, Archimedes, didn't know what he was talking about when he said the world could be moved with a lever," Nancy murmured.

Other technologies invented by Greek scientists include the ballistae, the piston pump, and primitive analog computers like the Antikythera mechanism.

Greek scientist and philosopher Aristotle even wrote about harvesting tasty cicadas.

Since it would be a long time before astronauts could fly high enough to see the shape of the world for themselves, Greek scientists had to use their ingenuity.