Flat earth

is planet earth flat ? just askin.

How do we know the earth and others planets go around the sun and not the opposite?

this is a very good question.For some time after it was accepted that planets(includin earth) circle the sun,there wasno direct proof that is is earth that moves,and not the sun ?

1- the horizon always appears completely flat 360 degrees to the observer,regardless of how high you go up.Anycurvature you think you see is from curved airplane windows or go pro cameras and fisheye lenses(which nasa lovesto use).The reality is that the horizon never curves because we are on an endless plane.

on a globe with 25,000 miles in circumference you would see a noticeable disappearance of objects the further they are as they would be leaning away from you and dropping below the constantly curving horizon! Completly flat horizon from the stratosphere.

2-The horizon always rises to meet your eyes level never no matter how high in altitude you go.Even at 20 miles up the horizonrises to meet the observer/camera.This is only physically possible if the earth is a hugeendless flat plane.

if earth were globe,no matter how large,as you ascended the horizon would stay fixed and the observer/camera would have to tilt downward,looking down further and further to see it.