Slaves, colonies
It is dangerous for a ship to be too lightly loaded because then it floats with less volume inside water. As a result,its centre of gravity is higher and it may get blown over on its side by strong winds.Therefore, an unloaded ship is filled with sand or stones,called ballast,at its bottom.This lowers its centre of gravity so that the equilibrium of ship becomes more stable.
A container ship carries packet containers that can be loaded or unloaded directly for rail , road or air transport.Tankers carry liquid products such as oil, crude petroleum etc.
As cargo is being unloaded, the weight of the ship decreases. This reduction in weight causes the ship to displace less water, resulting in a buoyant force that gradually lifts the ship higher in the water. This process continues until the ship reaches a new equilibrium where its weight is balanced by the buoyant force.
Big ships have ballast tanks to do two things: allow an unloaded or lightly loaded ship to ride lower in the water, and to change the way the ship rides in the water. The center tank is there to adjust ride height.
An empty ship has less displacement and sits higher in the water compared to a loaded ship, which has more displacement and sits lower in the water due to the added weight of cargo. This difference affects stability, maneuverability, and fuel efficiency of the ship.
a port is the place where a ship unloads and loads goods.
A ship can be 'on' a berth, which means is is moored (tied up) alongside a specific place called a berth in the dock. Or a berth is also used to describe a place for a crew member on board ship.
"Ship side" typically refers to the area or side of a ship that is adjacent to the dock or pier when the vessel is moored. It is where cargo is loaded and unloaded, and passengers embark and disembark. The term can also imply the specific side of a ship, such as port or starboard, depending on its orientation. Understanding ship side is essential for efficient maritime operations and safety during port activities.
there is a line on the side of the ship, as the cargo is loaded the ship sinks deeper into the water, when the the reaches the water, they must stop loading. That is the low tech method, nowadays with computers, shipping companies know down to the pound what has been loaded onto the ship. The computers are even smart enough to load containers that will be need first onto the top so they can be unloaded easier.
Contact the US Coast Guard - find their details on http://www.uscg.mil/The red flag is flown whenever explosives or fuel are being loaded, unloaded or moved aboard a ship.
A water line on a ship is a specific horizontal line marked on the hull of the ship to indicate the level of the water when the ship is properly loaded. It helps to ensure that the ship is loaded correctly for optimal stability and safety.