How Do We Know the Earth Isn't Flat? We Asked a NASA Expert: Episode 53 - NASA

This was a magical revelation for the Greeks and the Egyptians, who were able to see from the motions of the stars and the way the Sun moved. They saw the way the Sun’s shadow worked in diffe...

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How Do We Know the Earth Isn't Flat? We Asked a NASA Expert: Episode 53 - NASA

Source: NASA

This was a magical revelation for the Greeks and the Egyptians, who were able to see from the motions of the stars and the way the Sun moved. They saw the way the Sun’s shadow worked in different places. And they figured, well, that’s only possible if the Earth is round. And they took that […]