An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 124 Search : ics
ultrasonics
  اولتر-صداییک، اولتر-سداییک   
ultar-sedâyik

Fr.: physique des ultra-sons   

The branch of physics dealing with elastic waves of frequencies above 20 kHz to 1010 kHz propagated in solids, liquids, and gases.

→ ultra-; sonic from L. sonus→ sound + → -ics.

wave mechanics
  مکانیک ِ موجی   
mekânik-e mowji (#)

Fr.: mécanique ondulatoire   

One of the forms of quantum mechanics, due to Louis de Broglie and extended by E. Schrödinger. It originated in the suggestion that light consists of corpuscles as well as of waves and the consequent suggestion that all elementary particles are associated with waves.

→ wave; → mechanics

wave optics
  نوریک ِ موجی   
nurik-e mowji

Fr.: optique ondulatoire   

The branch of optics that analyzes the electromagnetic radiation in terms of its wave characteristics. Also called → physical optics.

→ wave; → optics.

zeroth law of thermodynamics
  قانون ِ صفرُم ِ گرماتوانیک   
qânun-e sefrom-e garmâtavânik

Fr.: loi zéro de la thermodynamique   

Two objects that are in → thermal equilibrium with a third object will be in thermal equilibrium with each other.

→ zero; → law; → thermodynamics.


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