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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. 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 ...

4. Water aeration - Wikipedia

   en.wikipedia.org/wiki/Water_aeration

   Subsurface aeration seeks to release bubbles at the bottom of the water body and allow them to rise by the force of buoyancy. Diffused aeration systems utilize bubbles to aerate as well as mix the water. Water displacement from the expulsion of bubbles will cause a mixing action to occur, and the contact between the water and the bubble will ...

5. Tiny, endangered fish hinders California's Colorado River ...

   www.aol.com/news/tiny-endangered-fish-hinders...

   California, which gets the most water of all the states based on a century-old water rights priority system, agreed to give up 1.6 million acre-feet of water through 2026, with more than half ...

6. Yosemite (sidewheeler) - Wikipedia

   en.wikipedia.org/wiki/Yosemite_(sidewheeler)

   Yosemite was built in 1862 at the yard of John Gunder North, in San Francisco.For a vessel built entirely of wood, Yosemite was enormous. She was 282' long after her rebuild following the 1865 boiler explosion, when 30' was added to her length., [1] 35' beam (80' over the paddle guards) and 13' depth of hold, and rated at 1525 tons.

7. Kayakers paddle in Death Valley lake: 'Extremely uncommon ...

   www.aol.com/kayakers-paddle-death-valley-lake...

   A paddle boarder paddles through water Thursday at Badwater Basin in Death Valley National Park, Calif. Kayakers and visitors have flocked to the park to take advantage of the ephemeral waters ...