Jophiel wrote:
Quote:
The Queen then insists that he can't have traveled where he says he did
She'd be right in your example as well. Columbus thought, wrongly, that the Earth was about one third its actual size and insisted that he could reach the Indies. He completely lucked out in that there was a continent right about where he would have run out of food and water. He mistakenly thought he reached the Indies because it made sense to him and told everyone it was true based on some collected trinkets and natives. But it wasn't true, he never did reach the Indies and later data collection would prove that Columbus was a lucky idiot, not a navigational mastermind.
But, hey, great analogy!
Edited, Mar 30th 2010 2:20pm by Jophiel
Jophiel is exactly right on. Actually, the ancient Greeks calculated the radius of the Earth quite accurately. It really isn't hard and it consists of an experiment which is repeatable, although it takes some patience and some coordination at two different places. There is a decent article on it at wikipedia:
http://en.wikipedia.org/wiki/Eratosthenes
There is also an article about how this was well known:
http://en.wikipedia.org/wiki/Spherical_Earth