I found this interesting:
The Earth was long known to be spherical, but I think that Ferdinand Magellan and his crew would have found the above statement especially puzzling, since they circumnavigated the world in 1521, 86 years before the "flat earth" hypothesis was apparently "disproved" by Drake.
Fun fact time: the children's story version of Columbus' discovery of the New World says that before he left, Queen Isabella's advisors were all saying that his expedition was foolish, because he would sail off the edge of the world. In fact, they didn't think the world was flat, but the story is right in one regard: they did think the expedition was foolish.
It was an established fact at the time that the Earth was round; estimates of its diameter had even been made by various methods. To make his voyage to the Orient look feasible, Columbus had fudged his numbers: he had used an estimate of the Earth's diameter that was far too small, and had already been refuted. The Queen's advisors said that he and his crew would die on the expedition: they'd run out of food and fresh water long before they reached the Orient.
And the advisors were right. The only thing that saved Columbus' life was that he stumbled upon a continent that nobody in Europe knew was there.
Yunus:…..What does science say about the shape of the Earth ?
Bob: Previously, Man thought that the Earth was flat, until Sir Frances Drake in 1607 finally proved it to be spherical. Today, the term Geoid is used to describe this spherical shape.
The Earth was long known to be spherical, but I think that Ferdinand Magellan and his crew would have found the above statement especially puzzling, since they circumnavigated the world in 1521, 86 years before the "flat earth" hypothesis was apparently "disproved" by Drake.
Fun fact time: the children's story version of Columbus' discovery of the New World says that before he left, Queen Isabella's advisors were all saying that his expedition was foolish, because he would sail off the edge of the world. In fact, they didn't think the world was flat, but the story is right in one regard: they did think the expedition was foolish.
It was an established fact at the time that the Earth was round; estimates of its diameter had even been made by various methods. To make his voyage to the Orient look feasible, Columbus had fudged his numbers: he had used an estimate of the Earth's diameter that was far too small, and had already been refuted. The Queen's advisors said that he and his crew would die on the expedition: they'd run out of food and fresh water long before they reached the Orient.
And the advisors were right. The only thing that saved Columbus' life was that he stumbled upon a continent that nobody in Europe knew was there.