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  2. List of chord progressions - Wikipedia

    en.wikipedia.org/wiki/List_of_chord_progressions

    vii o 7 /V–V–I (common in ragtime) vii o 7 /V–V–I: 3: Major Andalusian cadence: iv–III– ♭ II–I: 4: PD Backdoor progression (front door is V7) ii– ♭ VII I: 3: Major Bird changes: I vii ø –III7 vi–II7 v–I7, IV7 iv– ♭ VII7 iii–VI7 ♭ iii– ♭ VI7, ii V7 I–VI7 ii–V: 20: Major Chromatic descending 56 ...

  3. Mechanical systems drawing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_systems_drawing

    Mechanical systems drawing is a type of technical drawing that shows information about heating, ventilating, air conditioning and transportation around the building (Elevators or Lifts and Escalator). [1]

  4. File:Space elevator structural diagram--corrected for scale ...

    en.wikipedia.org/wiki/File:Space_elevator...

    It modified that file by 1) regenerating it as an .SVG. And, 2) clarifying that the cable rotates with the Earth and remains vertical. This file obsoletes both en:File:Space_elevator_structural_diagram--corrected_for_scale+CM+etc--regenerated_as_SVG.svg and File:Space elevator structural diagram.svg.

  5. File:Space elevator structural diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Space_elevator...

    Based on the raster Image:Space elevator structural diagram.png; Earth svg from Image:Geographylogo.svg; Date: 15 November 2006 (original upload date) Source: Transferred from to Commons.

  6. Chord (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Chord_(aeronautics)

    Mean aerodynamic chord (MAC) is defined as: [6] = (), where y is the coordinate along the wing span and c is the chord at the coordinate y.Other terms are as for SMC. The MAC is a two-dimensional representation of the whole wing. The pressure distribution over the entire wing can be reduced to a single lift force

  7. Comparison of pumps - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_pumps

    Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...

  8. 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 ...

  9. File:World Trade Center Building Design with Floor and ...

    en.wikipedia.org/wiki/File:World_Trade_Center...

    File talk:World Trade Center Building Design with Floor and Elevator Arrangment.svg Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.