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  2. Grandmaster Flash - Wikipedia

    en.wikipedia.org/wiki/Grandmaster_Flash

    The completion of the Quik Mix Theory was done at 927 Fox Street in the Hunts Point Area of the Bronx. The Quick Mix Theory gave birth to techniques such as cutting, scratching, and transforming. Backspin technique (or quick-mix theory): Early New York party DJs came to understand that short drum breaks were popular with party audiences. Kool ...

  3. Turntablism - Wikipedia

    en.wikipedia.org/wiki/Turntablism

    A "chirp" is a type of scratch used by turntablists. It is made with a mix of moving the record and incorporating movement with the crossfade mixer. It was invented by DJ Jazzy Jeff. The scratch is somewhat difficult to perform because it takes a good amount of coordination. The scratch starts out with the cross-fader open.

  4. James Prescott Joule - Wikipedia

    en.wikipedia.org/wiki/James_Prescott_Joule

    James Joule was born in 1818, the son of Benjamin Joule (1784–1858), a wealthy brewer, and his wife, Alice Prescott, on New Bailey Street in Salford. [3] Joule was tutored as a young man by the famous scientist John Dalton and was strongly influenced by chemist William Henry and Manchester engineers Peter Ewart and Eaton Hodgkinson.

  5. Marketing mix - Wikipedia

    en.wikipedia.org/wiki/Marketing_mix

    The marketing mix has been defined as the "set of marketing tools that the firm uses to pursue its marketing objectives in the target market". [2] Marketing theory emerged in the early twenty-first century. The contemporary marketing mix which has become the dominant framework for marketing management decisions was first published in 1984. [3]

  6. Elephant's toothpaste - Wikipedia

    en.wikipedia.org/wiki/Elephant's_toothpaste

    Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1] How rapidly the reaction proceeds will depend on the concentration of hydrogen peroxide.

  7. Color theory - Wikipedia

    en.wikipedia.org/wiki/Color_theory

    Color theory asserts three pure primary colors that can be used to mix all possible colors. These are sometimes considered as red, yellow and blue ( RYB ) or as red, green and blue ( RGB ). [ citation needed ] Ostensibly, any failure of specific paints or inks to match this ideal performance is due to the impurity or imperfection of the colorants.

  8. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...

  9. Mixing (process engineering) - Wikipedia

    en.wikipedia.org/wiki/Mixing_(process_engineering)

    Mixing of liquids occurs frequently in process engineering. The nature of liquids to blend determines the equipment used. Single-phase blending tends to involve low-shear, high-flow mixers to cause liquid engulfment, while multi-phase mixing generally requires the use of high-shear, low-flow mixers to create droplets of one liquid in laminar, turbulent or transitional flow regimes, depending ...