You may enjoy some or all of this video clip
https://www.youtube.com/watch?v=VNqNnUJVcVs&feature=em-subs_digest
That's a pretty cool clip, Melody.......everything is indeed "relative" to one's frame of reference.......!!!
Earth isn't flat! And Earth is constantly spinning! Did you know that???
BTW, I didn't watch the video
And one more thing I'll add! If the Earth were flat, eventually you would walk of the edge and float where ever