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Number of Results: 406

gravitation gerâneš (#) Fr.: gravitation 1) The universal phenomenon of attraction between material bodies.
→ Verbal noun of → |

gravitational gerâneši (#) Fr.: gravitationnel Of or relating to or caused by → Adj. of → |

gravitational acceleration šetâb-e gerâneši (#) Fr.: accélération gravitationnelle The acceleration caused by the force of gravity.
At the Earth's surface it is determined by the distance of the object form the center of the
Earth: G is the
→ gravitational constant, and M and R are
the Earth's mass and radius respectively. It is approximately equal to 9.8 m s^{-2}.
The value varies slightly with latitude and elevation.
Also known as the → acceleration of gravity.→ |

gravitational attraction darkešeš-e gerâneši Fr.: attraction gravitationnelle The force that pulls material bodies toward one another because of
→ → |

gravitational collapse rombeš-e gerâneši (#) Fr.: effondrement gravitationnel Collapse of a mass of material as a result of the mutual
→ → |

gravitational constant pâyâ-ye gerâneši (#) Fr.: constante gravitationnelle A fundamental constant that appears in → → |

gravitational contraction terengeš-e gerâneši Fr.: contraction gravitationnelle Decrease in the volume of an astronomical object under the action of a dominant, central gravitational force. → |

gravitational encounter ruyâruyi-ye gerâneši Fr.: rencontre gravitationnelle An encounter in which two moving bodies alter each other's direction and velocity by
mutual → → |

gravitational energy kâruž-e gerâneši Fr.: énergie gravitationnelle Same as → → |

gravitational equilibrium tarâzmandi-ye gerâneši (#) Fr.: équilibre gravitationnel The condition in a celestial body when gravitational forces acting on each point are balanced by some outward pressure, such as radiation pressure or electron degeneracy pressure, so that no vertical motion results. → |

gravitational field meydân-e gerâneši (#) Fr.: champ gravitationnel The region of space in which → → |

gravitational force niru-ye gerâneši (#) Fr.: force gravitationnelle The weakest of the four fundamental forces of nature. Described by
→ → |

gravitational instability nâpâydâri-ye gerâneši (#) Fr.: instabilité gravitationnelle The process by which fluctuations in an infinite medium of size greater than a certain length scale (the Jeans length) grow by self-gravitation. → |

gravitational interaction andaržireš-e gerâneši Fr.: interaction gravitationnelle Mutual attraction between any two bodies that have mass. → |

gravitational lens adasi-ye gerâneši (#) Fr.: lentille gravitationnelle A concentration of matter, such as a galaxy or a cluster of galaxies, that bends light rays from a background object, resulting in production of multiple images. If the two objects and the Earth are perfectly aligned, the light from the distant object appears as a ring from Earth. This is called an Einstein Ring, since its existence was predicted by Einstein in his theory of general relativity. → |

gravitational lens equation hamugeš-e adasi-ye gerâneši Fr.: équation de lentille gravitationnelle The main equation of gravitational lens theory that sets a relation between the angular position of the point source and the observable position of its image. → |

gravitational lensing lenzeš-e gerâneši Fr.: effet de lentille gravitationelle The act of producing or the state of a → → |

gravitational lensing time delay derang-e zâyide-ye lenzeš-e gerâneši Fr.: retard dû à l'effet de lentille gravitationnelle The difference in light travel times along the various light paths from
the source to the observer when the source image is divided into several images
because of → → |

gravitational mass jerm-e gerâneši (#) Fr.: masse gravitationnelle The mass of an object measured using the effect of a gravitational field on the object. → |

gravitational potential energy kâruž-e tavand-e gerâneši Fr.: énergie potentielle gravitationnelle 1) The energy that an object possesses because of its position in a
→ G
is the → gravitational constant. 3) For a uniform sphere. It is E,
where _{P} = -(3/5)GM^{2}/RG is the gravitational constant and M is the mass contained
in the sphere of radius R.→ |

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