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  1. For Debating "Flat Earthers"
    1. Simulate Low-Altitude Photo of Horizon of Sphere
    2. Curvature of Earth's Sea-Level Horizon, to Scale
    3. See how horizon varies with viewer's altitude
    4. Formula for "Obstructed Height" on a Sphere

For Debating "Flat Earthers"

Author:JimSmithInChiapas
Topic:Trigonometry
The growth of the "Flat Earth" movement is a troubling development. The resources in this book will help you to refute their claims that involve (or ignore!) geometry.

  • Simulate Low-Altitude Photo of Horizon of Sphere

  • Curvature of Earth's Sea-Level Horizon, to Scale

  • See how horizon varies with viewer's altitude

  • Formula for "Obstructed Height" on a Sphere

Next
Simulate Low-Altitude Photo of Horizon of Sphere

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