# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : Newton''s law
 Newton's law of cooling   قانون ِ سردش ِ نیوتن   qânun-e sardeš-e NewtonFr.: loi de refroidissement de Newton   An approximate empirical relation between the rate of → heat transfer to or from an object and the temperature difference between the object and its surrounding environment. When the temperature difference is not too large: dT/dt = -k(T - Ts), where T is the temperature of the object, Ts is that of its surroundings, t is time, and k is a constant, different for different bodies.→ Newton; → law; → cooling. Newton's law of gravitation   قانون ِ گرانش ِ نیوتن   qânun-e gerâneš-e NewtonFr.: loi newtonienne de la gravitation   The universal law which states that the force of attraction between any two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them: F = G (m1.m2)/r2, where G is the → gravitational constant.→ Newton; → law; → gravitation. Newton's laws of motion   قانونهای ِ جنبش ِ نیوتون   qânunhâ-ye jonbeš-e NewtonFr.: lois de mouvement de Newton   The three fundamental laws which are the basis of → Newtonian mechanics. They were stated in Newton's Principia (1687). → Newton's first law, → Newton's second law , → Newton's third law.→ Newton; → law; → motion.