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2. Euler's pump and turbine equation - Wikipedia

   en.wikipedia.org/wiki/Euler's_pump_and_turbine...

   With the help of these equations the head developed by a pump and the head utilised by a turbine can be easily determined. As the name suggests these equations were formulated by Leonhard Euler in the eighteenth century. [1] These equations can be derived from the moment of momentum equation when applied for a pump or a turbine.

3. Centrifugal pump - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_pump

   Centrifugal pumps with an internal suction stage such as water-jet pumps or side-channel pumps are also classified as self-priming pumps. [10] Self-Priming centrifugal pumps were invented in 1935. One of the first companies to market a self-priming centrifugal pump was American Marsh in 1938. [citation needed]

4. Centrifugal pump selection and characteristics - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_pump_selection...

   While centrifugal pumps impart momentum to the fluid by motion of blades, positive displacement pumps transfer fluid by variation in the size of the pump’s chamber. Centrifugal pumps can be of rotor or propeller types, whereas positive displacement pumps may be gear-based, piston-based, diaphragm-based, etc. As a general rule, centrifugal ...

5. Turbomachinery - Wikipedia

   en.wikipedia.org/wiki/Turbomachinery

   These two types of machines are governed by the same basic relationships including Newton's second Law of Motion and Euler's pump and turbine equation for compressible fluids. Centrifugal pumps are also turbomachines that transfer energy from a rotor to a fluid, usually a liquid, while turbines and compressors usually work with a gas. [1]

6. “Rust” Director Who Survived Bullet Wound Says Resuming ...

   www.aol.com/rust-director-survived-bullet-wound...

   Alec Baldwin's movie Rust premiered at Poland's Camerimage Festival on Nov. 19, more than three years after its cinematographer Halyna Hutchins died on Oct. 21, 2021, after a prop gun Baldwin held ...

7. Sisters Separated into Forced Labor Camps During World ... - AOL

   www.aol.com/lifestyle/sisters-separated-forced...

   Sisters Helena and Barbara Stefaniak had their worlds turned upside down after the start of World War II. The sisters, who were living in Poland, were separated and put into work camps as teens ...