Concept
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Concepts associés (56)
Aether drag hypothesis
In the 19th century, the theory of the luminiferous aether as the hypothetical medium for the propagation of light waves was widely discussed. The aether hypothesis arose because physicists of that era could not conceive of light waves propagating without a physical medium in which to do so. When experiments failed to detect the hypothesized luminiferous aether, physicists conceived explanations, which preserved the hypothetical aether's existence, for the experiments' failure to detect it.
Précession de Thomas
vignette|Concept d'artiste de Gravity Probe B en orbite autour de la Terre pour mesurer l'espace-temps, une description en quatre dimensions de l'univers comprenant la hauteur, la largeur, la longueur et le temps. La précession de Thomas est le nom donné au phénomène de précession que subit le moment cinétique d'un objet, ou le spin d'une particule élémentaire quand elle possède une trajectoire accélérée non soumise aux forces gravitationnelles. La précession de Thomas doit son nom à Llewellyn Thomas qui l'a mise en évidence en 1926.
Coordinate time
In the theory of relativity, it is convenient to express results in terms of a spacetime coordinate system relative to an implied observer. In many (but not all) coordinate systems, an event is specified by one time coordinate and three spatial coordinates. The time specified by the time coordinate is referred to as coordinate time to distinguish it from proper time.
Relativistic angular momentum
In physics, relativistic angular momentum refers to the mathematical formalisms and physical concepts that define angular momentum in special relativity (SR) and general relativity (GR). The relativistic quantity is subtly different from the three-dimensional quantity in classical mechanics. Angular momentum is an important dynamical quantity derived from position and momentum. It is a measure of an object's rotational motion and resistance to changes in its rotation.
Born coordinates
In relativistic physics, the Born coordinate chart is a coordinate chart for (part of) Minkowski spacetime, the flat spacetime of special relativity. It is often used to analyze the physical experience of observers who ride on a ring or disk rigidly rotating at relativistic speeds, so called Langevin observers. This chart is often attributed to Max Born, due to his 1909 work on the relativistic physics of a rotating body. For overview of the application of accelerations in flat spacetime, see Acceleration (special relativity) and proper reference frame (flat spacetime).
Annalen der Physik
Annalen der Physik (abrégé en Ann. Phys. (Berlin)) est la plus ancienne revue scientifique de physique, publiée depuis 1799. C'est une revue à comité de lecture qui publie des articles en anglais dans tous les domaines reliés à la physique. D'après le Journal Citation Reports, le facteur d'impact de ce journal était de 3.276 en 2018. L'actuel directeur de publication est Stefan Hildebrandt.