reply to post by onehuman
It can be challenging to wrap your mind around it, but it obviously works... evidenced by all the mass ocean liners and air liners.
There is a lot to be said for fluid displacement and the pressure it can apply to the displacing object.
Cruise ships require massive, massive engines to power the ship. These engines alone can make you scratch your head, as you try to imagine how they
can remain afloat as they are sitting on a massive steel foundation.
The sheer weight of the furniture, water in swimming pools, all the passengers, the fuel, the construction materials, etc., makes it seem impossible
to remain balanced and afloat.
It makes me wonder what the 'pressure per squar inch' on the boat's submergerd outer-shell is.
The outer-shell, the ship's "casing", is the point where every bit of the ships weight presses against one side, while the ocean/sea presses
against the other side, as it tries to refill the displaced water.
The pressure on this "shell", as it supports the ship's weight on one side and continues to displace the water below on the other side, has to be
so intense that it is hard to even comprehend.
I suppose, with a material strong enough to cope with extreme pressure, anything can float, as long as the base is wide enough and the hull is deep
enough. Theoretically, if the base is wide enough and deep enough, and the body of water is also deep and wide, the entire Universe could float!...
[fantasyland] Who knows? Maybe the Universe is a ship, floating upon some extreme dimension. Maybe everything in the Universe is it's cargo,
as-well-as everything else needed to make the 'ship' (universe) run...