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  2. Percolation test - Wikipedia

    en.wikipedia.org/wiki/Percolation_test

    A percolation test consists of digging one or more holes in the soil of the proposed leach field to a specified depth, presoaking the holes by maintaining a high water level in the holes, then running the test by filling the holes to a specific level and timing the drop of the water level as the water percolates into the surrounding soil.

  3. List of unreleased projects by Kanye West - Wikipedia

    en.wikipedia.org/wiki/List_of_unreleased...

    During an on-set interview, West expressed that the visual was inspired by his love for video games, characterizing making a video look equally good to a game as "the holy grail". [21] He explained that rather than utilizing computer-generated imagery, the "intensity" should come off the screen. [21] The music video was directed by Hype Williams.

  4. Sieve analysis - Wikipedia

    en.wikipedia.org/wiki/Sieve_analysis

    A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, [1] and chemical engineering [2] to assess the particle size distribution (also called gradation) of a granular material by allowing the material to pass through a series of sieves of progressively smaller mesh size and weighing the amount of material that is stopped by each sieve as a fraction ...

  5. Cone penetration test - Wikipedia

    en.wikipedia.org/wiki/Cone_penetration_test

    A CPT truck operated by the USGS. Symbol used in drawings Simplified version of a cone penetrometer.. The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy.

  6. Fullscreen (aspect ratio) - Wikipedia

    en.wikipedia.org/wiki/Fullscreen_(aspect_ratio)

    Fullscreen (or full screen) refers to the 4:3 (1. 33:1) aspect ratio of early standard television screens and computer monitors. [1] Widescreen ratios started to become more popular in the 1990s and 2000s. Film originally created in the 4:3 aspect ratio does not need to be altered for full-screen release.

  7. Chroma key - Wikipedia

    en.wikipedia.org/wiki/Chroma_key

    Sometimes a shadow can be used to create a visual effect. Areas of the blue screen or green screen with a shadow on them can be replaced with a darker version of the desired background video image, making it look like the person is casting a shadow on them. Any spill of the chroma key colour will make the result look unnatural.

  8. Soil physics - Wikipedia

    en.wikipedia.org/wiki/Soil_physics

    Soil physics is the study of soil's physical properties and processes. It is applied to management and prediction under natural and managed ecosystems . Soil physics deals with the dynamics of physical soil components and their phases as solids , liquids , and gases .

  9. Digital marketing - Wikipedia

    en.wikipedia.org/wiki/Digital_marketing

    Advertising revenue as a percent of US GDP shows a rise in digital advertising since 1995 at the expense of print media. [1]Digital marketing is the component of marketing that uses the Internet and online-based digital technologies such as desktop computers, mobile phones, and other digital media and platforms to promote products and services.