Imagine an ant walking along the surface of an orange towards your vantage point. It also has the pleasant side effect of looking so beautiful. He came to this conclusion about the moon’s shape by observing the line separating its light and dark sides as it moved through its orbital cycle, a demarcation known as the lunar terminator. He reasoned that if the moon were round, then the Earth must be round as well. However, to make things simpler, we’ll refer to it as a “sphere” or “spherical” throughout this article.) Over the moon: Early theories from Pythagoras and AristotleĪround 500 BCE, the Greek philosopher and mathematician Pythagoras had an idea. Earth is actually an oblate spheroid or ellipsoid, meaning a sphere that’s ever-so-slightly flattened at the top due to its rotation. Looking for at least one reason to prove this? We can do you one better - here are seven. Now, the question is: Is it possible that after all this time, Earth is actually flat? If you were to step into a large field, for instance, you’d know that you’re standing on a flat surface, and as you walk towards the end of the field, it doesn’t feel like you’re walking on a curved or rounded surface. Waitasecond, how do we know that the earth is actually ball-shaped? If we were to believe our senses, it wouldn’t be surprising for us to think that it’s flat. If you can read this article, there’s a pretty decent chance that you’re reading it somewhere on Earth - that big, beautiful ball that we humans call home.
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