perfectly homogeneous space
71UNITED STATES OF AMERICA — UNITED STATES OF AMERICA, country in N. America. This article is arranged according to the following outline: introduction Colonial Era, 1654–1776 Early National Period, 1776–1820 German Jewish Period, 1820–1880 East European Jewish Period,… …
72Principle of relativity — In physics, the principle of relativity is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference. For example, in the framework of special relativity the Maxwell equations have… …
73Rotational symmetry — Generally speaking, an object with rotational symmetry is an object that looks the same after a certain amount of rotation. An object may have more than one rotational symmetry; for instance, if reflections or turning it over are not counted, the …
74Diffusion MRI — Diagnostics DTI Color Map MeSH D038524 Diffusion MRI is a mag …
75plain — Synonyms and related words: Attic, Bohemian, Ciceronian, Lebensraum, Mickey Mouse, Spartan, abrupt, absolute, absolutely, affable, agricultural region, air space, all embracing, all encompassing, all out, all pervading, apparent, arable land,… …
76Newmark's influence chart — Newmark’s Influence Chart is an illustration used to determine the vertical pressure at any point below a uniformly loaded flexible area of soil of any shape. This method, like others, was derived by integration of Boussinesq’s equation for a… …
77Bulgaria — /bul gair ee euh, bool /, n. a republic in SE Europe. 8,652,745; 42,800 sq. mi. (110,850 sq. km). Cap.: Sofia. * * * Bulgaria Introduction Bulgaria Background: The Bulgars, a Central Asian Turkic tribe, merged with the local Slavic inhabitants in …
78Zero set — For the album by Moebius, Plank, Neumeier, see Zero Set. In mathematics, the zero set of a real valued function f : X → R (or more generally, a function taking values in some additive group) is the subset f − 1(0) of X (the inverse image of… …
79Chaotic Inflation theory — Physical cosmology Universe · Big Bang …
80Haussmann's renovation of Paris — The Haussmann Renovations, or Haussmannisation of Paris , was a work commissioned by Napoléon III and led by the Seine prefect, Baron Georges Eugène Haussmann between 1852 and 1870, though work continued well after the Second Empire s demise in… …
