this is due to the curvature of the earth.
Action and reaction , the ship is lighter from the discharged ballast- so it will float upwards with buoyancy. One assumes you are talking about submarines. Some surface ships have trim tanks to compensate for cargo compartments not being balanced- etc. but this is not a submergence device.
There are several ways to independently verify that the Earth is a globe without relying on NASA's pictures. One way is through observations of the stars and constellations, which change as you move from one hemisphere to another. Another way is through the phenomenon of ships disappearing over the horizon, where the bottom of the ship is no longer visible before the rest of it gradually disappears. Additionally, satellite images from other space agencies, such as the European Space Agency or private companies, also provide evidence of the Earth's spherical shape.
what sits on the water and warns ships of the danger coast
seaway
International Convention for the Prevention of Pollution from Ships (MARPOL)
Because the earth is round, and this effect IS NOT corrected when looking through a telescope.
I am scanning the horizon for ships at sea.
The possessive form of the plural noun ships is ships'.example: We watched the ships' outlines against the horizon.
Sink
By the ships disappearing below the horizon
No, not at all.
Keep a weather eye on the horizon means to watch the horizon or as far as you can look for ships=water, people=land or water, or an animal=land or water.
Sure ships sink. Titanic for example and hundreds of less famous boats every year. They can also disappear....it is a big ocean out there. Not all ships that go missing are found.
It is a body of water where ships & planes mysteriously disappear.
Ships stay away from the bottom of Niagara Falls.
The term you are referring to is The Bermuda Triangle.
It is said that many ships and airplanes disappear in the Bermuda Triangle it is the magnetic feild that causes the compasses to go out of control and not work. New answer: Many ships and planes disappear in many parts of the oceans, not only in the Bermuda Triangle. It is doubtful that more disappear in the Bermuda Triangle than elsewhere.