who was the scientist that said: the earth ISN'T flat?

Answer 1

In classical times, educated people pretty much understood that the Earth is a sphere.

"Eratosthenes (276 BC - 194 BC) estimated Earth's circumference around 240 BC. He had heard about a place in Egypt where the Sun was directly overhead at the summer solstice and used geometry to come up with a circumference of 250,000 stades. This estimate astonishes some modern writers, as it is within 2% of the modern value of the equatorial circumference, 40,075 kilometres. However, the length of a 'stade' is not precisely known; Eratosthenes' figure falls short if we do not use a fairly generous estimate for this length." (http://en.wikipedia.org/wiki/Spherical_Earth)

Answer 2

I don't think the first person to suggest it has been documented... but most ancients (anyone educated especially) was pretty sure it was round. They would know by the lunar eclipses.

Lunar eclipses are a fairly common event, and if you look at the shadow of the earth on the moon and compare that to a shadow from one ball onto another, they are essentially the same.

Answer 3

No one ever thought the earth was/is flat its a Myth. From the earliest time Man has always know it was round(ish).

Answer 4

if the world was flat, dont u think that half of us would of fell off the edge of the world. there wouldnt even B a world 2 even live on if it was flat.

Answer 5

It was first written about by Aristotle (4th century BC, before Eratosthenes), but it was most likely know even long before him.

Answer 6

pythagoras, plato, aristotle, eratosthenes (in that order, although aristotle was the first to put forward some physical arguments).

Answer 7

wasnt it chris columbus?