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  2. Scale model - Wikipedia

    en.wikipedia.org/wiki/Scale_model

    A scale model of the Tower of London. This model can be found inside the tower. A scale model of a hydropower turbine. A scale model is a physical model that is geometrically similar to an object (known as the prototype). Scale models are generally smaller than large prototypes such as vehicles, buildings, or people; but may be larger than ...

  3. Scale (descriptive set theory) - Wikipedia

    en.wikipedia.org/wiki/Scale_(descriptive_set_theory)

    A scale on A is a countably infinite collection of norms < with the following properties: If the sequence x i is such that x i is an element of A for each natural number i, and x i converges to an element x in the product space X, and

  4. Scale analysis (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(mathematics)

    Scale analysis is an effective shortcut for obtaining approximate solutions to equations often too complicated to solve exactly. The object of scale analysis is to use the basic principles of convective heat transfer to produce order-of-magnitude estimates for the quantities of interest.

  5. Scaling (geometry) - Wikipedia

    en.wikipedia.org/wiki/Scaling_(geometry)

    Each iteration of the Sierpinski triangle contains triangles related to the next iteration by a scale factor of 1/2. In affine geometry, uniform scaling (or isotropic scaling [1]) is a linear transformation that enlarges (increases) or shrinks (diminishes) objects by a scale factor that is the same in all directions (isotropically).

  6. Open textbook - Wikipedia

    en.wikipedia.org/wiki/Open_textbook

    An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public.Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.

  7. Model theory - Wikipedia

    en.wikipedia.org/wiki/Model_theory

    In mathematical logic, model theory is the study of the relationship between formal theories (a collection of sentences in a formal language expressing statements about a mathematical structure), and their models (those structures in which the statements of the theory hold). [1]

  8. Category:Scale modeling - Wikipedia

    en.wikipedia.org/wiki/Category:Scale_modeling

    Articles related to scale models, physical models of an object that maintain accurate relationships between its important aspects, although absolute values of the original properties need not be preserved. This enables the model to demonstrate some behavior or property of the original object without examining the original object itself.

  9. Scale invariance - Wikipedia

    en.wikipedia.org/wiki/Scale_invariance

    The Wiener process is scale-invariant. In physics, mathematics and statistics, scale invariance is a feature of objects or laws that do not change if scales of length, energy, or other variables, are multiplied by a common factor, and thus represent a universality. The technical term for this transformation is a dilatation (also known as dilation).