Bose–Einstein distribution. At low temperatures, bosons behave differently from fermions (which obey the Fermi–Dirac statistics) in a way that an unlimited number of them can "condense" into the same energy state.This apparently unusual property also gives rise to the special state of matter – the Bose–Einstein condensate.Fermi–Dirac and Bose–Einstein statistics apply when …

L’équation d'Einstein [1] ou équation de champ d'Einstein [2] (en anglais, Einstein field equation ou EFE), publiée par Albert Einstein, pour la première fois le 25 novembre 1915 [3], est l'équation aux dérivées partielles principale de la relativité générale.C'est une équation dynamique qui décrit comment la matière et l'énergie modifient la géométrie de l'espace-temps.

The Gödel metric, also known as the Gödel solution or Gödel universe, is an exact solution of the Einstein field equations in which the stress–energy tensor contains two terms, the first representing the matter density of a homogeneous distribution of swirling dust particles (dust solution), and the second associated with a negative cosmological constant (see …

The Friedmann equations are a set of equations in physical cosmology that govern the expansion of space in homogeneous and isotropic models of the universe within the context of general relativity.They were first derived by Alexander Friedmann in 1922 from Einstein's field equations of gravitation for the Friedmann–Lemaître–Robertson–Walker metric and a perfect …

A wormhole (Einstein-Rosen bridge) is a speculative structure connecting disparate points in spacetime, and is based on a special solution of the Einstein field equations.. A wormhole can be visualized as a tunnel with two ends at separate points in spacetime (i.e., different locations, different points in time, or both).

Germany. Born in Ulm, Einstein was a German citizen from birth.As he grew older, Einstein's pacifism often clashed with the German Empire's militant views at the time. At the age of 17, Einstein renounced his German citizenship and moved to Switzerland to attend college. The loss of Einstein's citizenship allowed him to avoid service in the military, which suited his pacifist …

Albert Einstein's religious views have been widely studied and often misunderstood. Albert Einstein stated "I believe in Spinoza’s God". He did not believe in a personal God who concerns himself with fates and actions of human beings, a view which he described as naive. He clarified however that, "I am not an atheist", preferring to call himself an agnostic, or a "religious …

History. The Euler equations first appeared in published form in Euler's article "Principes généraux du mouvement des fluides", published in Mémoires de l'Académie des Sciences de Berlin in 1757 (although Euler had previously presented his work to the Berlin Academy in 1752). The Euler equations were among the first partial differential equations to be written down, …

Luminiferous aether or ether ("luminiferous", meaning "light-bearing") was the postulated medium for the propagation of light. It was invoked to explain the ability of the apparently wave-based light to propagate through empty space (a vacuum), something that waves should not be able to do.The assumption of a spatial plenum of luminiferous aether, rather than a spatial …

In 1915, Albert Einstein developed his theory of general relativity, having earlier shown that gravity does influence light's motion.Only a few months later, Karl Schwarzschild found a solution to the Einstein field equations that describes the gravitational field of a point mass and a spherical mass. A few months after Schwarzschild, Johannes Droste, a student of Hendrik …

Overview Phase space coordinates (p,q) and Hamiltonian H. Let (,) be a mechanical system with the configuration space and the smooth Lagrangian . Select a standard coordinate system (, ˙) on . The quantities (, ˙,) = / ˙ are called momenta. (Also generalized momenta, conjugate momenta, and canonical momenta).For a time instant , the Legendre transformation of is defined as the …

In physics, a unified field theory (UFT) is a type of field theory that allows all that is usually thought of as fundamental forces and elementary particles to be written in terms of a pair of physical and virtual fields. According to the modern discoveries in physics, forces are not transmitted directly between interacting objects but instead are described and interrupted by …

Albert Einstein (alemán: ... Albert (1915) [manuscrito publicado 25 de noviembre 1915], «Die Feldgleichungen der Gravitation» [The Field Equations of Gravitation] (Online page images), Königlich Preussische Akademie der Wissenschaften ... Wikipedia® es una marca registrada de la Fundación Wikimedia, Inc., ...

En física, las ecuaciones de campo de Einstein, ecuaciones de Einstein o ecuaciones de Einstein-Hilbert (conocidas como EFE, por Einstein field equations) son un conjunto de diez ecuaciones de la teoría de la relatividad general de Albert Einstein que describen la interacción fundamental de la gravitación como resultado de que el espacio-tiempo está siendo curvado …