Take a plane or a boat and circle all the wall that is supposedly containing the water and you will prove the earth is flat, pretty simple, how come no one has done this?
This is one of the most basic questions asked again and again. Of course the standard flatard response is nothing short of hilarious but most of their bullshit is!
PSA: If your answer to Astargath's question isn't something like the one below then you should immediately step away from the computer and seek professional assistance for your mental disorder, no seriously, you're fucking crazy...
Because anyone that could afford to do it isn't retarded enough to waste the money on trying to prove a fairy tale.