1. At What Height is the Earth's Curvature Visible?
      1. It's a Simple Question.  However, the responses vary greatly depending who you ask.   
        1. At Sea-Level? 
        2. At the Flight Level of Commercial Jets? 
        3. From High Altitude Balloons? 
    2. Ships Going "Over The Curve" 
      1. This is Misleading and Demonstrably False.  
    3. The Natural Physics of Water Prove Earth Level
    4. Convergence, Vanishing Point, Perspective, Horizon
    5. Experiments measuring Earth's Curvature
    6. Earth Curvature AutoCAD Chart
    7. Gopro Curvature
    8. CGI Curvature