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2. Paddle wheel - Wikipedia

   en.wikipedia.org/wiki/Paddle_wheel

   The paddle wheel is a device for converting between rotary motion of a shaft and linear motion of a fluid. In the linear-to-rotary direction, it is placed in a fluid stream to convert the linear motion of the fluid into rotation of the wheel. Such a rotation can be used as a source of power, or as an indication of the speed of flow.

3. Water aeration - Wikipedia

   en.wikipedia.org/wiki/Water_aeration

   Water aeration is the process of increasing or maintaining the oxygen saturation of water in both natural and artificial environments. Aeration techniques are commonly used in pond, lake, and reservoir management to address low oxygen levels or algal blooms. [1]

4. Paddle steamer - Wikipedia

   en.wikipedia.org/wiki/Paddle_steamer

   The paddle wheel is a large steel framework wheel. The outer edge of the wheel is fitted with numerous, regularly spaced paddle blades (called floats or buckets). The bottom quarter or so of the wheel travels under water. An engine rotates the paddle wheel in the water to produce thrust, forward or backward as required. More advanced paddle ...

5. Raceway pond - Wikipedia

   en.wikipedia.org/wiki/Raceway_pond

   Raceway pond used for the cultivation of microalgae. The water is kept in constant motion with a powered paddle wheel. A raceway pond is a shallow artificial pond used in the cultivation of algae. [1] [2] The pond is divided into a rectangular grid, with each rectangle containing one channel in the shape of an oval, like an automotive raceway ...

6. Aerated lagoon - Wikipedia

   en.wikipedia.org/wiki/Aerated_lagoon

   The ponds or basins may range in depth from 1.5 to 5.0 meters. [ 6 ] In a surface-aerated system, the aerators provide two functions: they transfer air into the basins required by the biological oxidation reactions, and they provide the mixing required for dispersing the air and for contacting the reactants (that is, oxygen, wastewater and ...

7. Faucet aerator - Wikipedia

   en.wikipedia.org/wiki/Faucet_aerator

   When an aerator is added to the faucet (or fluid stream), there is a region of high pressure created behind the aerator. Because of the higher pressure behind the aerator and the low pressure in front of it (outside the faucet), due to Bernoulli's principle there is an increase in velocity of the fluid flow.

8. P.A. Denny (ship) - Wikipedia

   en.wikipedia.org/wiki/P.A._Denny_(ship)

   P.A. Denny is a 109-foot (33 m) long three-deck paddle wheel boat that cruised the Kanawha River in the eastern United States for nearly three decades as a tour boat.It provided excursions and parties, before leaving for Ohio in August 2004.

9. Cecil Elwood Pond - Wikipedia

   en.wikipedia.org/wiki/Cecil_Elwood_Pond

   In 1954, Pond introduced his first 4-wheel lawn tractor, an event which altered substantially the lawn care manufacturing business. By 1957, his Wheel Horse Products company recorded sales over $1 million (US$10,848,341 in 2023 dollars [ 2 ] ) for the first time.