They stay afloat the same way any ship stays afloat. The displacement of the vessel has to be less then the amount of water being displaced. The armaments have to be carefully planned to make sure that things don't get too heavy. And the balance and location have to considered as well, to make sure the ship doesn't roll over.
Its magical! :D Teehhee!!
It is not impossible. Ships do stay afloat. <><><> While they ARE heavy, they weigh less than the water they displace.
yes,it can stay afloat as it has a waterproof coverings or fibrous husk to trap air.
2
the structure of the boat allowed it to stay afloat no matter what.
Because the water pushes the boat up and the weight pushes the boat down so that it stay afloat
It is impossible
by farting gas !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
There were a bunch of them that survived, but USS Nevada and USS Saratoga are two of the more famous ones because they were commissioned before the US entered the war and still afloat when the war ended.
In an ocean.
the buoyancy
The cork will stay afloat