the earth is round, we can prove by the existence of satellites, the existence of satellites means to prove that the existence of earth grativitasi.
The consequence of gravity is a round earth.
Have you ever seen a satellite dish pointing straight up ?
Have you ever seen a satellite dish with water draining holes in the middle ? (how do all manufacturers know i want be moving to a place right below the satellite, and water or sand fill up the wok and render it useless)
Have you ever lost the signal for ever because the 40 year old satellite broke because of no maintenance, no service
Have you ever lost the signal for ever because the satellite got destroyed by space debris or collided
Have you ever lost the signal for ever because the satellite malfunctioned
Have you ever lost the signal for ever because it run out of power
Car or electric, electronic manufacturers could learn a thing or two from satellite producing companies to make something last for ever without breakdowns without service or upgrade 40 year old tech