How is it that when you use a pair of binoculars, a zoom camera or a telescope as you see an object "go over the curve" with your naked eye it suddenly comes back into view with the aid of such devices?
Shouldn't the object still be obscured by "the curve"?
Not true. Let's go back to 300 years ago, 1720. Back then, illiterate mariners knew that when you perceived an object on the horizon, you could first make out the topgallant masts and sails, but not the deck of a ship. Using a telescope would make the image larger, but you still couldn't see the deck. By climbing up to the crow's nest, you might be able to make out the topmast and sails, but still not the deck. Once again, a telescope would enlarge the image, but was unable to see beyond the horizon. Your statement takes human understanding back to at least to the Bronze Age when Greek and Phoenicians mariners knew this even though that they did not have telescopes. A perfect demostration of idiocracy in action.