Diwrnach
Well-known member
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Defeating flat earth is very, very simple and takes about 30 seconds.Look on youtube and see how many nutters still believe the earth is flat and nasa is lying to everybodyJust the fact of how satnavs work proves einsteins theory of relativity and proves the earth is round
They work due to the fact time runs at different speeds depending on gravity hence different distances from earth as in the satellites that they use for gps
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Find someone on the internet who is roughly the other side of the world to you, get them to take a photo of the moon for you, compare it to wqhat you see, it will be upside down to you because they are standing upside down relative to you.
Why this is never used I don't know seems so obvious to me. What possible explanation can you have for that other than we are on a ball?