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Atlantis from the Stargate universe is a "city-ship" which is capable of flight and intergalactic travel. Due to the amount of power required to keep it airborne, it is frequently shown floating on water, but it could theoretically float at a fixed location in space. The Nox of Stargate SG-1 have floating cities.
Safe water mark or fairway buoys mark the entrance to a channel or nearby landfall; Sea marks aid pilotage by marking a maritime channel, hazard or administrative area to allow boats and ships to navigate safely. Some are fitted with wave-activated bells or gongs. Wreck buoys mark a wrecked ship to warn other ships to keep away because of ...
Human effort is used through a pole pushing against the bottom of shallow water, or paddles or oars operating in the surface of the water. Wind power is used by sails; Towing is used, either from the land, such as the bank of a canal, with the motive power provided by draught animals, humans or machinery, or one watercraft may tow another.
A floating building is a building unit with a flotation system at its base, to allow it to float on water. It is common to define such a building as being "permanently moored" and not usable in navigation. [1] [2] Floating buildings are usually towed into location by another ship and are unable to move under their own power.
A dockworker places a mooring line on a bollard. A mooring is any permanent structure to which a seaborne vessel (such as a boat, ship, or amphibious aircraft) may be secured. Examples include quays, wharfs, jetties, piers, anchor buoys, and mooring buoys. A ship is secured to a mooring to forestall free movement of the ship on the water.
In 1715 the first commercial wet dock, Liverpool's Old Dock, opened. [2] Early docks were of simple construction: a single lock gate isolating them from the tidal water. The gates were opened during the last hour [or two] of the rising tide, giving a short window of opportunity to let ships in on the rise and releasing outgoing ships while the tide was on the t
Floating island La Rota in Posta Fibreno lake, Italy. Natural floating islands are composed of vegetation growing on a buoyant mat of plant roots or other organic detritus. In aquatic regions of Northwestern Europe, several hundred hectares or a couple thousand acres of floating meadows (German Schwingrasen, Dutch trilveen) have been preserved, which are partly used as agricultural land ...
Pumice rafts from the eruption of Fukutoku-Okanoba submarine volcano in 1986, seen from a ship A piece of pumice. A pumice raft is a floating raft of pumice created by some eruptions of submarine volcanoes or coastal subaerial volcanoes.