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Byford Dolphin was a semi-submersible, column-stabilised drilling rig operated by Dolphin Drilling, a Fred Olsen Energy subsidiary. It drilled seasonally...

A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed...

A paddle steamer is a steamship or steamboat powered by a steam engine that drives paddle wheels to propel the craft through the water. In antiquity, paddle...

A driver's license, driving licence, or driving permit is a legal authorization, or the official document confirming such an authorization, for a specific...

The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer sides of the ship...

A deep-submergence rescue vehicle (DSRV) is a type of deep-submergence vehicle used for rescue of personnel from disabled submarines and submersibles....

A balloon is a flexible membrane bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. For special purposes, balloons...

The Second Industrial Revolution, also known as the Technological Revolution, was a phase of rapid scientific discovery, standardisation, mass production...

Trieste II (DSV-1) was the successor to Trieste – the United States Navy's first bathyscaphe purchased from its Swiss designers. The original Trieste design...

 Scapa  Flow Scapa Flow (/ˈskɑːpə, ˈskæpə/; from Old Norse Skalpaflói 'bay of the long isthmus') is a body of water in the Orkney Islands, Scotland, sheltered...

The Sea Pole (Hai Ji, or Chinese: 海极) class bathyscaphe is a class of bathyscaphe of the People's Republic of China (PRC). They are capable of diving up...

An aerial lift, also known as a cable car or ropeway, is a means of cable transport in which cabins, cars, gondolas, or open chairs are hauled above the...

Mystic class is a class of Deep-Submergence Rescue Vehicles (DSRVs), designed for rescue operations on submerged, disabled submarines of the United States...

A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different...

Consul-class DSV (project 1681x) is a class of two deep-submergence vehicles (DSVs) built by the Russian Navy and operated by the Navy's Main Underwater...

Sub Marine Explorer is a submersible built between 1863 and 1866 by Julius H. Kroehl and Ariel Patterson in Brooklyn, New York for the Pacific Pearl Company...

Adhesive weight is the weight on the driving wheels of a locomotive, which determines the frictional grip between wheels and rail, and hence the drawbar...

The Welfreighter was a Second World War British midget submarine developed by the Special Operations Executive (SOE) for the purpose of landing and supplying...

An interchange station or a transfer station is a train station for more than one railway route in a public transport system that allows passengers to...

The West Central Railway (abbreviated WCR), one of the 19 zones of the Indian Railways, came into existence on 1 April 2003. It is headquartered at Jabalpur...