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SvennoJ said:
Bofferbrauer2 said:

Sometimes, I wish to pay a ticket into space for some influential flat-earther - and livestream the event and the entire flight on his channel. It would cost me an arm and a leg and then some, but I would consider that entirely worth it if this would punch some common sense into that person and his followers.

And one flat-earther tried something similar: He sent himself up in a rocket and landed safely afterwards. The problem: He went up a grand total of 570 meters. But since that wasn't enough to see any curvature of the earth, he declared that earth is officially flat.

Haha yeah I read that part as well. 570 meters.... The Burj Khalifa in Dubai is 828 meters tall!

They probably have their theories about ships disappearing, sinking into the horizon as well. There are so many ways to 'discover' that the Earth is round, yet once you start envisioning the sun as a spot light with shades doing circles over a flat disc... I mean, gravity is kinda hard to miss standing on the Earth, centripetal force is easily demonstrated, yet how does the spot light stay up there.

All you need is to have one on the ground floor and one at the top of a tower with clear view of the horizon, video chat, I can still see the sun, I can't anymore, how come. Even if you go with the sun as a spotlight with shades, the person on the ground should see the sun longer, not the one on top of the tower. Maybe light has a finite distance and fizzles out?

Poor education, that's the only thing I can come up with.

One of my favorite explanations for the ship sinking is that light is affected by gravity. It inverts the assumption and then you can't really prove the earth is round that way. 



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