Fpesanteur WGravitation
  • La gravitation est une des quatre forces fondamentales qui régissent l'Univers et le phénomène d'interaction physique qui cause l'attraction des corps massifs entre eux, sous l'effet de leur masse.
  • Plusieurs théories ont tenté de rendre compte de la gravitation. Aujourd'hui encore, la théorie de la relativité générale d'Albert Einstein (1915) reste la plus satisfaisante.
  • Aux échelles microscopiques, la gravitation est la plus faible des quatre interactions fondamentales de la physique ; elle devient dominante au fur et à mesure que les échelles de grandeur augmentent.

    Definition of gravity in English Dictionary

  • NomPLgravitiesPREgravi-SUF-ity
    1. Resultant force on Earth's surface, of the attraction by the Earth's masses, and the centrifugal pseudo-force caused by the Earth's rotation.
      1. It is tempting to speculate about the incentives or compulsions that might explain why anyone would take to the skies in [the] basket [of a balloon]: perhaps out of a desire to escape the gravity of this world or to get a preview of the next; […].
    2. Gravitation, universal force exercised by two bodies onto each other (In casual discussion, gravity and gravitation are often used interchangeably).
      1. Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
    3. The state or condition of having weight; weight; heaviness.
      1. Specific gravity.
        1. The state or condition of being grave (graveness).
        2. Plus d'exemples
          1. Utilisé au milieu de la phrase
            • Now orbiting Earth, Gravity Probe B is a technological tour de force.
            • A two-dimensional system of photoelastic disks subject to vertical tapping against gravity was experimentally monitored from ordered to disordered configurations by varying bidispersity.
            • There is nothing wrong with that kind of line — he’s a newly fledged ultravillain in a comic-book movie, after all — but it needs to be earned, with gravity or wit.
          2. Utilisé au début de la phrase
            • Gravity waves, while predicted by theory for decades, have been notoriously difficult to detect.
        • Partie du discours Hiérarchie
          1. Noms
            • Noms Dénombrable
              • Singularia tantum
                • Noms Indénombrable
            Liens Connexes:
            1. en gravityless
            2. en gravity bong
            3. en gravity wind
            4. en gravity cell
            5. en gravity drop
            Source: Wiktionnaire

            Meaning of gravity for the defined word.

            Grammaticalement, ce mot "gravity" est un nom, plus spécifiquement, un noms dénombrable et un singularia tantum.
            Difficulté: Niveau 2
            Facile     ➨     Difficile
            Définition: Niveau 8
            Précis    ➨     Polyvalent