Flat Earth Math

Shane's Presentation - The Mathematics of Celestial Observation 

https://www.youtube.com/watch?v=E1fnLTPDnF8&list=PLPn_FcWHyhmUuikk6WYsyq4UaDKxvXsT6&index=72

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Articles etc Math for a Flat Stationary Plane with the sky circling above 

https://publish.obsidian.md/spaceaudits/Articles/The_Current_State_of_Modern_Academia