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  2. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    This article gives a list of conversion factors for several physical quantities.A number of different units (some only of historical interest) are shown and expressed in terms of the corresponding SI unit.

  3. Factor of safety - Wikipedia

    en.wikipedia.org/wiki/Factor_of_safety

    In engineering, a factor of safety (FoS) or safety factor (SF) expresses how much stronger a system is than it needs to be for an intended load.Safety factors are often calculated using detailed analysis because comprehensive testing is impractical on many projects, such as bridges and buildings, but the structure's ability to carry a load must be determined to a reasonable accuracy.

  4. Pulley - Wikipedia

    en.wikipedia.org/wiki/Pulley

    Thus, the block and tackle reduces the input force by the factor p. A gun tackle has a single pulley in both the fixed and moving blocks with two rope parts supporting the load W. Separation of the pulleys in the gun tackle show the force balance that results in a rope tension of W/2.

  5. Factor analysis - Wikipedia

    en.wikipedia.org/wiki/Factor_analysis

    The factor model must then be rotated for analysis. [4] Canonical factor analysis, also called Rao's canonical factoring, is a different method of computing the same model as PCA, which uses the principal axis method. Canonical factor analysis seeks factors that have the highest canonical correlation with the observed variables.

  6. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    Three is a common factor of the left denominator and right numerator and is divided out of both. Multiplying a fraction by a whole number Since a whole number can be rewritten as itself divided by 1, normal fraction multiplication rules can still apply.

  7. Five Ws - Wikipedia

    en.wikipedia.org/wiki/Five_Ws

    In the United Kingdom (excluding Scotland), the Five Ws are used in Key Stage 2 and Key Stage 3 lessons (ages 7–14). [7] In data analytics, the Five Ws are used in the first stage of the BADIR to identify the business problem and its context in an analytics request.

  8. Technical drawing - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing

    Drafter at work Copying technical drawings in 1973. Technical drawing, drafting or drawing, is the act and discipline of composing drawings that visually communicate how something functions or is constructed.

  9. Polygon - Wikipedia

    en.wikipedia.org/wiki/Polygon

    Using the formulas for simple polygons, we allow that particular regions within the polygon may have their area multiplied by a factor which we call the density of the region. For example, the central convex pentagon in the center of a pentagram has density 2.