It is visible to the blind and audible to the deaf that the earth is not flat. The ship visibility, the sun rise and its settling..its enough to prove that it s not flat.. Even Ferdinand Magellan and his crew prove to us if i could recall well from my geography that the circumnavigation of the earth in 1519-1522 proves that it is not flat or rectangular in shape.
I love this post it rejuvenated my brain back to those days in geography.. Keep up with the good works bro