Homogeneity (physics)

Homogeneity (physics)

In general, homogeneity is defined as the quality or state of being homogeneous (of the same or similar nature, from Greek ὀμός meaning 'same'). It also means having a uniform structure throughout. For instance, a uniform electric field (which has the same strength and the same direction at each point) would be compatible with homogeneity (all points experience the same physics). A material constructed with different constituents can be described as effectively homogeneous in the electromagnetic materials domain, when interacting with a directed radiation field (light, microwave frequencies, etc.) In physics, homogeneous usually means describing a material or system that has the same properties at every point of the space; in other words, uniform without irregularities. In physics, it also describes a substance or an object whose properties do not vary with position. For example, an object of uniform density is sometimes described as homogeneous. Another related definition is simply a substance that is uniform in composition.

Mathematically, homogeneity has the connotation of invariance, as all components of the equation have the same degree of value whether or not each of these components are scaled to different values, for example, by multiplication or addition. Cumulative distribution fits this description. "The state of having identical cumulative distribution function or values".

Read more about Homogeneity (physics):  Context, Translation Invariance, Dimensional Homogeneity

Famous quotes containing the word homogeneity:

    Dissonance between family and school, therefore, is not only inevitable in a changing society; it also helps to make children more malleable and responsive to a changing world. By the same token, one could say that absolute homogeneity between family and school would reflect a static, authoritarian society and discourage creative, adaptive development in children.
    Sara Lawrence Lightfoot (20th century)