earth curve calculator
theflatearthsociety.orgwelcome to the flat earth society, home of the flat earth forums and the largest library of flat earth society journals, newsletters, interviews, and books.
dizzib.github.io
earthcurvature.comaccurately calculate the curvature on the ball earth. uses a cosine function, works for all distances in both kilometers and miles. open source on github.
physicscalc.comavailable physics calculators help you to solve all basic & complex physics concepts problems easily. so use our physics online calculators during homework
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