Debunking the Flat Earth Theory

 

Proving the Earth is NOT Flat – Part 1 (The Sun) 20 minutes          

 

Proving the Earth is NOT Flat – Part 2 (The Stars) 20 minutes

 

Proving the Earth is NOT Flat – Part 3 (The Moon) 20 minutes

 

Level Theory Part 1 – (Measuring a Sphere)

 

Curvature and Refraction Engineer Survey Math – 5 minutes