<https://forum.davidicke.com/index.php?/topic/5513-the-flat-earth-thread-the-reality-of-our-physical-plane-v2/page/7/#comment-122067>
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"That airplanes maintain level flight unless taking off or landing is fact not fiction.\n \n\n\n\t \n \n\n\n\tPeople that believe the earth is a flat plane understand the force you describe as gravity to be the relative density of materials. I don't believe in magical forces holding things down. \n \n\n\n\t \n \n\n\n\tThe plane needs thrust to overcome drag and because it is heavier than air.\n \n\n\n\t \n \n\n\n\tDensity of materials is an observable fact. Gravity is density by another name much like covid 19 is seasonal flu by another name or the firmament is the Van Allen belts. They love giving stuff new names especially to prop a failed globe model. Everything they think up has a magical formula that allows it to defy the laws of elementary physics.\n \n"
<https://forum.davidicke.com/index.php?/topic/5513-the-flat-earth-thread-the-reality-of-our-physical-plane-v2/page/7/>