First of all i do not think it is a ball, I know for sure it is
There are many science experiment that demonstrate the earth is round, you only need sticks and sunlight to demonstrate it, there are pictures, people that went around the world (my father is one of them). Pictures from satellites. Also every other astral object we can look at is spherical, stars, moon, other planets we look at. Do you really think this is all fake? for what purpose? if the earth wasn't a sphere, why make everyone believe it is? Are you implying they built a fake sky around earth with fake stars? fake moon? fake satellite rotating around ect. I can't tell if you are seriously believing the earth is flat or if you are trolling me