# 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: 11 Search : mechanical
 mechanical   ساز-و-کاریک، ساز-و-کاروار   sâzokârik, sâzokârvârFr.: mécanique   1) Of, connected with, produced by → mechanics. 2) Like machines; automatic.→ mechanic; → -al. mechanical energy   کاروژ ِ مکانیکی   kâruž-e mekânikiFr.: énergie mécanique   The energy that is possessed by an object due to its motion or due to its position. It is equal to the sum of the → kinetic energy and → potential energy.→ mechanical; → energy. mechanical equilibrium   ترازمندی ِ مکانیکی   tarâzmandi-ye mekânikiFr.: équilibre mécanique   1) The state of a → rigid body if, as viewed from an → inertial frame of rest: 1) the → linear acceleration of its → center of mass is zero, and 2) its → angular acceleration about any axis fixed in this reference frame is zero. The center of mass may be moving with constant velocity and the body may be rotating about a fixed axis with constant angular velocity. 2) In → thermodynamics, the state of a system in which → pressure is the same every where with no other forces acting on the system except a uniform external pressure. mechanical equivalent of heat   هم‌ارز ِ مکانیکی ِ گرما   ham-arz-e mekâniki-ye garmâ (#)Fr.: équivalent mécanique de chaleur   Same as → Joule's constant.→ mechanical; → equivalent; → heat. mechanical mixing   آمیزش ِ مکانیکی   âmizeš-e mekânikiFr.: mélange mécanique   Any → mixing process that utilizes the → kinetic energy of relative → fluid motion.→ mechanical; → mixing. mechanical power   توان ِ مکانیکی   tavân-e mekâniki (#)Fr.: puissance mécanique   The → rate at which → work is done by a → force. In other words, → mechanical energy per unit time. Mechanical power is expressed in units of joules/sec (joules/s) or a watt (W) in the → mks system.→ mechanical; → power. mechanical system   راژمان ِ مکانیکی   râžmân-e mekânikiFr.: système mécanique   1) Any system of elements that interact according to the laws of → mechanics (as distinguished from chemical, electrical, thermal, etc.). 2) A collection of → machines functioning together to achieve the transfer of motion.→ mechanical; → system. mechanical wind   باد ِ مکانیکی   bâd-e mekânikiFr.: vent mécanique   A process in which matter is shed into a → Keplerian disk from a star rotating at the → critical velocity. The disk is probably destroyed by the pressure exerted by the stellar radiation and finally matter is lost. Such a process seems to occur around → Be stars which are stars rotating at or very near the critical limit (Meynet et al. 2007, arXiv:0709.2275).→ mechanical; → wind. mechanically   ساز-و-کاریکانه، ساز-و-کاروارانه   sâzokârikâné, sâzokârvârânéFr.: mécaniquement   1) In a mechanical manner; by a mechanism. 2) In a machine-like manner; without feeling.→ mechanical; → -ly. quantum mechanical system   راژمان ِ کو‌آنتوم مکانیکی   râžmân-e kuântom mekânikiFr.: système mécanique quantique   A → physical system that is specified by a → wave function.→ quantum; → mechanical; → system. quantum-mechanical operator   آپارگر ِ مکانیک ِ کو‌آنتومی   âpârgar-e mekânik-e kuântomiFr.: opérateur en mécanique quantique   A linear → Hermitian operator associated with a physical quantity.→ quantum; → mechanics; → operator.