allright tom- im new here, and i can see that you live in your own little world. but to help shatter that world, i give you an experiment to help prove round earth.
You say light bends a lot as it goes through air, yes? allright. well, first, get a baromiter. measure the air pressure. then have someone stay with the baromiter, and carry a flag out to the horizon. measure the distance. when the flag dips out of view, plant it. later, when the air pressure changes, repeat the experiment. if the flag is planted at the same spot or even nearby, then your theory is debunked.