The theory of Gravity is absurd in the face of common sense and thinking beings. ​ Its nothing more than a sophistry enthymeme which relies on a population of yes men.

The density dictates how fast it falls in fluid, both water and air. In air this difficult to measure, let alone in an artificial vacuum environment, especially at 9.81m/s/s" applies over 122ft (2.75 second) hence why its used to scam people you can't yet think for themselves.

Pop two spheres of same size but different density in a dive pool or controlled water environment and clearly see the denser sphere fall faster. The Gravitational constant is a joke and fall acceleration simply based on density of fluid, density and shape of 'object'.

Flat Earth as a term does not represent a model but represents free thinking and an on going investigation and understanding of where we are, who we are, what we are, when, how and why.

1 No proof for the unseen force of grabbity.
2 Bodies of water always displays level on surface.
3 No proof of axial rotation.
4 No proof that air pressure can exist without a container? love that one.
4-1 No proof whatsoever that 2 opposing pressure systems could exist side by side without physical barrier.
5 No measurable curvature (apart from a single globe biased soundly source. Made in Autocad IMHO) If it was a reality we would've all seen it and the internet would ba awash with examples.
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https://www.youtube.com/watch?v=bXxcTPlblf4