Flat Earther spends $20,000 on DIY experiment that accidentally proved the planet is ROUND
(www.dailymail.co.uk)
🌏 Sphere World 🌎
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A straight line on a sphere is called great circle distance. It's impossible to represent a sphere on a 2D piece without physical distortion in some way, so on paper, planes trajectory appears curved, but that's just a distortiong of their actual path. Planes don't really constantly turn in real life, they follow a mostly straight line whenever possible.