Overcomplicated

If there is not apparent movement between two objects, why would you want to know their acceleration relative to one another?

Just look outside your window for all the visual proof you need of a flat celestial body.

that is the dumbest argument i heard.

that is the dumbest argument i heard.

Think carefully about what he said:

Just look outside your window for all the visual proof you need of a flat celestial body.

Just look outside your window for all the visual proof you need of a flat celestial body.

I repeat myself, You should put this argument in the FAQ..

Go to the ocean (near a harbour) and spend some hours there. Observe the ships are arriving when they cross the horizont (a binocular would make it easier). You see allways first the upperside of the ship when it appears on horizont..This is a very simple proof for the curvature of the earth..

This argument (believe it or not) has been brought up before. Some claim to have seen it. Some claim to have seen something else.

Thoseones who have seen something else maybe didnt have binoculars or are lying..
Try yourself the obsrvation to convince you. Dont trust what others tell..