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Herreshoff steam generator in a Peruvian torpedo boat of 1879. A monotube steam generator is a type of steam generator consisting of a single tube, usually in a multi-layer spiral, that forms a once-through steam generator (OTSG). The first of these was the Herreshoff steam generator of 1873. [1]
The water caterpillar boat propulsion system (Popular Science Monthly, December 1918) An early uncommon means of boat propulsion was the water caterpillar. This moved a series of paddles on chains along the bottom of the boat to propel it over the water and preceded the development of tracked vehicles. [34]
Salter's duck, also known as the nodding duck or by its official name the Edinburgh duck, is a device that converts wave power into electricity. The wave impact induces rotation of gyroscopes located inside a pear-shaped "duck", and an electrical generator converts this rotation into electricity with an overall efficiency of up to 90%.
P.A.S or PAS may appear within the list of components of electric conversion kits for bicycles, which implies Pedal Assistance Sensor or sometimes Pulse Pedal Assistance Sensor. Pulse usually relates to a magnet and sensor which measures the rotational velocity of the crank. Pedal pressure sensors under the feet are possible but not common. [7]
A marine steam engine is a steam engine that is used to power a ship or boat. This article deals mainly with marine steam engines of the reciprocating type, which were in use from the inception of the steamboat in the early 19th century to their last years of large-scale manufacture during World War II .
Row boat; Rowing a trainera. Using oars individually, with both hands on a single oar, is sweep or sweep-oar rowing. [2] In this case the rowers are usually paired so that there is an oar on each side of the boat. Sweep-oared craft include: Coxless pair, Coxed pair, Coxless four, Coxed four, and Eight; Galley, Dromon, Trainera, and Trireme ...
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Pedal boat may refer to: Amphibious cycle, a pedal-powered vehicle capable of operation on both land and water; Hydrocycle, a bicycle-like watercraft with pontoons or a hydrofoil for buoyancy, and pedals for propulsion; Human-powered hydrofoil, a hydrofoil that can use pedals and various other means for propulsion