The conversation between human and AI assistant.
Why there are people who still believe that earth is flat?
But hasn't there been scientific proof that the Earth is round?
Yes, there's plenty of scientific evidence that the Earth is round. The earliest evidence comes from around 240 B.C., when the ancient Greek mathematician Eratosthenes used the angles of shadows to calculate the Earth's circumference. Since then, numerous experiments and observations have confirmed the Earth's spherical shape, including photographs taken from space and the fact that ships disappear over the horizon due to the Earth's curvature.