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The Titanic, showing eight lifeboats along the starboard-side boat deck (upper deck): four lifeboats near the bridge wheel house and four lifeboats near the 4th funnel. Lifeboats played a crucial role during the sinking of the Titanic on 14–15 April 1912. The ship had 20 lifeboats that, in total, could accommodate 1,178 people, a little over ...
Compartment (ship) A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight ...
The Panama Canal locks (Spanish: Esclusas del Canal de Panamá) are a lock system that lifts ships up 85 feet (26 metres) to the main elevation of the Panama Canal and down again. The original canal had a total of six steps (three up, three down) for a ship's passage. The total length of the lock structures, including the approach walls, is ...
A caisson is a form of lock gate. It consists of a large floating iron or steel box. This can be flooded to seat the caisson in the opening of the dock to close it, or pumped dry to float it and allow it to be towed clear of the dock. Graving docks at Birkenhead, closed by a variety of ship caissons and floating (sliding) caissons.
The steel gates consist of a male element (3 metres (9.8 ft) high and weighing 10 tonnes (9.8 long tons; 11 short tons)) connected to the gate, a female element (1.5 metres (4 ft 11 in) high and weighing 25 tonnes (25 long tons; 28 short tons)) fastened to the housing structure and an attachment assembly to connect the male and female elements.
The Fox Point Hurricane Barrier is a 3,000-foot (910 m) long tidal flood barrier spanning the Providence River in Providence, Rhode Island, located 750 feet (230 m) upstream from Fox Point. It was constructed between 1960 and 1966 to protect the low-lying downtown area of the city from damaging storm surge and floods associated with hurricanes ...
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The exit gates are opened and the boat moves out. [11] If the lock were empty, the boat would have had to wait 5 to 10 minutes while the lock was filled. For a boat travelling upstream, the process is reversed; the boat enters the empty lock, and then the chamber is filled by opening a valve that allows water to enter the chamber from the upper ...
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