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  2. Renormalization group - Wikipedia

    en.wikipedia.org/wiki/Renormalization_group

    Regularization. v. t. e. In theoretical physics, the term renormalization group ( RG) refers to a formal apparatus that allows systematic investigation of the changes of a physical system as viewed at different scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy ...

  3. Fracture mechanics - Wikipedia

    en.wikipedia.org/wiki/Fracture_mechanics

    Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture . Theoretically, the stress ahead of a sharp ...

  4. R. G. LeTourneau - Wikipedia

    en.wikipedia.org/wiki/R._G._LeTourneau

    Robert Gilmour "R. G." LeTourneau ( / lətˈərnoʊ /; November 30, 1888 – June 1, 1969), born in Richford, Vermont, was a prolific inventor of technologies related to earthmoving machinery, and founder of LeTourneau Technologies and LeTourneau University. [ 1] His factories supplied machinery which represented nearly 75 percent of the ...

  5. Radius of gyration - Wikipedia

    en.wikipedia.org/wiki/Radius_of_gyration

    Radius of gyration or gyradius of a body about the axis of rotation is defined as the radial distance to a point which would have a moment of inertia the same as the body's actual distribution of mass, if the total mass of the body were concentrated there. The radius of gyration has dimensions of distance [L] or [M 0 LT 0] and the SI unit is ...

  6. Game mechanics - Wikipedia

    en.wikipedia.org/wiki/Game_mechanics

    Game mechanics. In tabletop games and video games, game mechanics are the rules or ludemes that govern and guide the player's actions, as well as the game's response to them. A rule is an instruction on how to play, a ludeme is an element of play like the L-shaped move of the knight in chess. A game's mechanics thus effectively specify how the ...

  7. Crack growth resistance curve - Wikipedia

    en.wikipedia.org/wiki/Crack_growth_resistance_curve

    In fracture mechanics, a crack growth resistance curve shows the energy required for crack extension as a function of crack length in a given material. For materials that can be modeled with linear elastic fracture mechanics (LEFM), crack extension occurs when the applied energy release rate exceeds the material's resistance to crack extension ...

  8. Universality class - Wikipedia

    en.wikipedia.org/wiki/Universality_class

    Universality class. In statistical mechanics, a universality class is a collection of mathematical models which share a single scale-invariant limit under the process of renormalization group flow. While the models within a class may differ dramatically at finite scales, their behavior will become increasingly similar as the limit scale is ...

  9. Statistical mechanics - Wikipedia

    en.wikipedia.org/wiki/Statistical_mechanics

    In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities. Sometimes called statistical physics or statistical thermodynamics, its applications include many problems in the fields of physics, biology, [1] chemistry, neuroscience, [2] computer science, [3] [4] information theory [5] and ...