Since you pride yourself on having a lot of letters after your name, and since you wont get off a resistance forum, even though you are not a real Catholic,
would you care to explain why there is no curvature on the earth? For example in the following videos, you can see objects demonstrating a total clarity and steadiness that would not be present in refraction. Yet we see these objects and they should be beyond the horizon.
Your entire assumption that the earth is round is based on a fixed mathematical forumula, that must work always, if it is to be true. You deal with numbers all the time. If they don't add up, as you know, you must re-evaluate.
Here are the videos http://flatearthtrads.forumga.net/t17-objects-over-the-horizon-proofs