The Horizon and air density

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The Horizon and air density
I  have been taking movies and photos over a three year period of the Golden Gate Bridge and Fort Point from a distance of 10.1 miles away and a measured height of an average of 12 feet above the water of the bay. I want to base an argument of the earth being flat on the simple fact that the Horizon simply extends for too far from the viewing height chosen for the earth to have the claimed radius by NASA and others. However I expect to be told by the believers in the globe that reason I am seeing …