Hey Shaq? Here’s how you can figure out the Earth is round for yourself
Ethan Siegel

Thanks Goncalo for the link to the looney bin aka the Flat Earth Society. I was curious about the arguments the Flat Earthers have to this well-known method of determining curvature of the Earth. They use perspective and outright denial of facts as their arguments. But hey, good news, their online shop is coming soon!

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