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Star Trek Technical Manuals are a number of both official and fan-produced works detailing the technology of the fictional Star Trek universe; most pertain to starship design, though others target equipment used in the various Star Trek television series and films.
Harvest Queen was the name of two stern-wheel steamboat built and operated in Oregon. Both vessels were well known in their day and had reputations for speed, power, and efficiency.The first Harvest Queen, widely considered one of the finest steamers of its day, was constructed at Celilo, Oregon, which was then separated from the other portions of the navigable Columbia River by two stretches ...
French Army captain Cugnot was one of the first to successfully employ a device for converting the reciprocating motion of a steam piston into a rotary motion by means of a ratchet arrangement. A small version of his three-wheeled fardier à vapeur ("steam dray ") was made and used in 1769 (a fardier was a massively built two-wheeled horse ...
A typical river paddle steamer from the 1850s. Fall Line's steamer Providence, launched 1866 Finlandia Queen, a paddle-wheel ship from 1990s in Tampere, Finland [1]. A paddle steamer is a steamship or steamboat powered by a steam engine driving paddle wheels to propel the craft through the water.
A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines [1] that typically move (turn) propellers or paddlewheels. The first steamships came into practical usage during the early 19th century; however, there were exceptions that came before.
It is standard equipment on large stationary boilers and was also fitted to large steam locomotives to ease the burden of the fireman. The locomotive type has a screw conveyor (driven by an auxiliary steam engine) which feeds the coal into the firebox. The coal is then distributed across the grate by steam jets, controlled by the fireman.
An oscillating cylinder engine cannot be reversed by means of the valve linkage (as in a normal fixed cylinder) because there is none. Reversing of the engine can be achieved by reversing the steam connections between inlet and exhaust or, in the case of small engines, by shifting the trunnion pivot point so that the port in the cylinder lines up with a different pair of ports in the port face.
The earliest yan steamer dating from about 5000 BC was unearthed in the Banpo site. [1] In the lower Yangzi River , zeng pots first appeared in the Hemudu culture (5000–4500 BC) and Liangzhu culture (3200–2000 BC) and were used to steam rice; yan steamers were also unearthed in several Liangzhu sites, including 3 found at the Chuodun and ...