Yes and when they zoomed in on the ship, they saw the rest of the ship? Yes... that kind of test.
Keep in mind the formula for curve. It’s really a severe drop, and not that hard to prove or disprove with a good camera.
“Yes and when they zoomed in on the ship, they saw the rest of the ship?”
Except that isn’t what happened. And still doesn’t. Sailors have always known what apparently eludes you, assuming that you aren’t play acting.