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  2. 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 ...

  3. List of Pentax products - Wikipedia

    en.wikipedia.org/wiki/List_of_Pentax_products

    3.1.12 Film era manual focus, auto aperture, ... Download as PDF; Printable version; In other projects ... Pentax K100D with 18-55 mm zoom lens Pentax K-1 with D-BG6 ...

  4. Centrifugal pump - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_pump

    Self-priming pumps have to be capable of evacuating air from the pump suction line without any external auxiliary devices. 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.

  5. Pentax cameras - Wikipedia

    en.wikipedia.org/wiki/Pentax_cameras

    In June 2013 Pentax announced the successors to the K-30, the K-50 and K-500. Both are mid-level DSLRs, the K-500 being a stripped-down version of the K-50, having no weather seals and less-advanced electronics. [36] [37] Pentax K-500 uses 4 AA batteries (rechargeable Lithium battery is optional), while Pentax K-50 uses rechargeable Lithium ...

  6. Pentax MX - Wikipedia

    en.wikipedia.org/wiki/Pentax_MX

    It was Pentax's flagship professional SLR until the introduction of the Pentax LX. Internally, the MX is essentially a smaller, lighter version of the Pentax KX, and otherwise has little in common with the rest of the Pentax M-series. However, the MX was designed as the mechanical twin sister of the remarkably successful entry-level Pentax ME.

  7. Pentax ME Super - Wikipedia

    en.wikipedia.org/wiki/Pentax_ME_Super

    The camera was a development of (and one of two replacements for) the Pentax ME. Both feature semi-automatic (aperture priority) operation, and are part of the Pentax M series which included the manual Pentax MX and briefly the semi-automatic, automatic-focus Pentax ME F. The ME Super added a manual mode to the feature set of the ME.

  8. Electromagnetic pump - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_pump

    An electromagnetic pump is a pump that moves liquid metal, molten salt, brine, or other electrically conductive liquid using electromagnetism. A magnetic field is set at right angles to the direction the liquid moves in, and a current is passed through it. This causes an electromagnetic force that moves the liquid.

  9. Pentax MZ-S - Wikipedia

    en.wikipedia.org/wiki/Pentax_MZ-S

    The Pentax MZ-S is a 35mm single-lens reflex camera from Pentax of Japan. It was introduced in 2001 [1] and discontinued in February 2006. [2] It is closely related to the prototype MZ-D Full-frame digital SLR, which never entered production. [3] It was the top-of-the-line model of Pentax's MZ/ZX series and replaced the PZ-1p as the high-end ...