How sailor going from Venice to Athens in the ancient time knew to navigate EXCTALY to the port location?
I can understand general direction by stars or even a compass but to navigate to a very specific location is other problem as I see it.
I did some foot navigation and to get to a specific point of very different then a general direction and you can’t use just general direction. If you miss your journey even in 0.5 degree you will get in totally other coast and not to the port you aimed for.
It will be even a bigger problem on the ocean travels. The Portuguese ships going to South America. How the know to land exactly at the port of Mexico or other places.
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It isn’t easy.
Before gps was a regular thing, crossing Lake Ontario in a sail boat. We were heading for a small boat harbor that was basically invisible until you were right on top of it. The trick was to purposely head just a little off. Enough so when you hit shore you knew you needed to turn left. (port) You weren’t exactly sure how far off you were, but you knew you were close and you knew which way to go along the shore.
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