I just checked out the link. It's very disinformative he is denying the formula for curvature and the proof the Flat Earther provided by just discrediting him.
Anyone who has done the experiment themselves has already found " NO CURVATURE"
You think we Flat Earther's have no other work in life than spread fud ?
We were all taught the ball story m8.
Just do your own real research before forming opinions.
RE: Flat Earth - True World