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I honestly don't think oceans are flat for several miles. There's a reason that old ships are equipped with crows nests. Why risk climbing up a crow's nest, why waste the resources on creating a crows nest, if the curvature of the earth is irrelevant at sea.
At sea, the higher up you are, the further you can see, because you can see further past the curvature. Otherwise crew on the deck would see land and ships before the scout in the crow's nest.
The examples given were canals, I think the Panama canal specifically which is several miles long without any slope which I think is really interesting.
The higher up you are resulting in seeing further would apply to a flat or round earth, objects disappearing in the distance would be due to simply going past the event horizon.
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[–] Pattoe [S] 0 points 1 point 1 point (+1|-0) ago
I honestly don't think oceans are flat for several miles. There's a reason that old ships are equipped with crows nests. Why risk climbing up a crow's nest, why waste the resources on creating a crows nest, if the curvature of the earth is irrelevant at sea.
At sea, the higher up you are, the further you can see, because you can see further past the curvature. Otherwise crew on the deck would see land and ships before the scout in the crow's nest.
[–] frankenham ago
The examples given were canals, I think the Panama canal specifically which is several miles long without any slope which I think is really interesting.
The higher up you are resulting in seeing further would apply to a flat or round earth, objects disappearing in the distance would be due to simply going past the event horizon.
[–] Pattoe [S] ago
The event horizon? You mean we live in a black hole?