For thousands of years, we've known that the Earth is in the shape of a sphere. It's not flat like they believed in the past. However, there are still some people who don't believe that this is true. You heard that right, despite all the evidence presented throughout the years, some people still don't believe that the Earth isn't flat.
If you happen to be one of these people, that's okay. It's quite easy to prove that the Earth isn't flat. All you have to do is perform some simple experiments. Sounds interesting? Read on to learn about these simple experiments. You can easily do these yourself. Maybe after these experiments, you'll start believing that our planet is actually spherical.