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  2. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    A chain pump is a type of water pump that uses a chain to move water from one place to another. It works on the principle of a continuous loop of chain moving through a series of sprockets, with attached buckets that lift water as the chain passes over the top sprocket and discharge it as the chain reaches the bottom. [12]

  3. India Mark II - Wikipedia

    en.wikipedia.org/wiki/India_Mark_II

    Durability needs to be incorporated into pump design to the handle the heavy use (and abuse). The India Mark II is a human-powered pump designed to lift water from a depth of 50–80 m. [1] The Mark II is world's most widely used water handpump. [2] The pump was designed in the 1970s to serve village water needs in developing countries and ...

  4. Water pumping - Wikipedia

    en.wikipedia.org/wiki/Water_pumping

    Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...

  5. Pump - Wikipedia

    en.wikipedia.org/wiki/Pump

    The device uses the water hammer effect to develop pressure that lifts a portion of the input water that powers the pump to a point higher than where the water started. The hydraulic ram is sometimes used in remote areas, where there is both a source of low-head hydropower, and a need for pumping water to a destination higher in elevation than ...

  6. How Polari, the ‘lost language’ of gay men, inspired much of ...

    www.aol.com/news/polari-lost-language-gay-men...

    Butch, femme, drag, camp, zhuzh and more are now in common parlance, thanks to Polari, as well as some quite spicy terms, like cherry, dish and more (but more on that later).

  7. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    In general, heat pumps work most efficiently (that is, the heat output produced for a given energy input) when the difference between the heat source and the heat sink is small. When using a heat pump for space or water heating, therefore, the heat pump will be most efficient in mild conditions, and decline in efficiency on very cold days.

  8. Gear pump - Wikipedia

    en.wikipedia.org/wiki/Gear_pump

    An exploded view of an external gear pump Fluid flow in an external gear pump Fluid flows from left to right in this internal gear pump. Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [1] They are one of the most common types of pumps for hydraulic fluid power applications.

  9. Ion pump - Wikipedia

    en.wikipedia.org/wiki/Ion_pump

    A noble diode pump is a type of ion pump used in high-vacuum applications that employs both a chemically reactive cathode, such as titanium, and an additional cathode composed of tantalum. The tantalum cathode serves as a high-inertia crystal lattice structure for the reflection and burial of neutrals, increasing pumping effectiveness of inert ...