The upward acceleration of the earth is Einsteins theory on gravity to counter Newtons theory of gravity. No real flat earther believes that the earth is in any type of motion,,,spinning, upwards, downwards, etc. We believe the earth is motionless and this has been proven a ton of times in experiments. https://christianflatearthmini....stry.org/2016/03/13/

 

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The Flat Earth Society Is Controlled Opposition! | Christian Flat Earth Ministry

For those who have done research on the Flat Earth Society and found their website, you may have walked away thinking, “These people are not serious!” or other such thoughts. Well, you are right, as they are the controlled opposition. The Flat Earth