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You haven't worked out that height is almost irrelevant at the distances they can be sighted. The newest lighthouses are built close to the ground.

Draw to scale. 50 miles. Then draw to the same scale a light house that is 1000 feet above sea level.

Jaimethompson, you and your husband David, aside from being sexual deviants, and cyber-stalkers. please stop following me around the Internet. I don't want to be a part of your cuckoldry. And you're ugly and demonstrably stupid to boot. Leave me alone. I don't want you in my life. You have been stalking me for eight months. Get a life you stupid hoe.