An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 27 Search : potential
potential well
  چاه ِ توند   
câh-e tavand

Fr.: puit de potentiel   

Region in a → field of force in which the potential decreases abruptly, and in the surrounding region of which the potential is larger.

potential; → well.

potentiality
  توندی   
tavandi

Fr.: potentialité   

1) The state or quality of being potential. Something potential.
2) According to Aristotle, what has the possibility of having → form, in contrast to → actuality; the power to effect change.

potential + → -ity.

potentially
  توندانه   
tavandâné

Fr.: potentiellement   

With a possibility of becoming actual; possibly.

potential; → -ly.

potentially hazardous asteroid (PHA)
  سیارک ِ توندانه آپه‌ناک   
seyyârak-e tavandâné âpenâk

Fr.: astéroïde potentiellement dangereux   

An asteroid that could make a threatening close approach to the Earth. In technical terms a PHA is defined as having an → absolute magnitude of 22 or brighter and an → Earth Minimum Orbit Intersection Distance (MOID) of less than 0.05 → astronomical unit or 7.5 million km.

potentially; → hazardous; → asteroid.

retarded potential
  توند ِ دیررس   
tavand-e dirras

Fr.: potentiel retardé   

The → electromagnetic potential at an instant in time and a point in space as a function of the charges and currents that existed at earlier times.

Retarded, adj. of → retard; → potential.

thermodynamic potential
  توند ِ گرماتوانیک   
tavand-e garmâtavânik

Fr.: potentiel thermodynaique   

A measure of the energy level of a → thermodynamic system. It represents the amount of → work obtainable when the system undergoes a → change. The main types of thermodynamic potential are: → internal energy, → enthalpy, the → Helmholtz free energy, and the → Gibbs free energy.

thermodynamic; → potential.

Yukawa potential
  توند ِ یوکاوا   
tavand-e Yukawa

Fr.: potentiel de Yukawa   

The potential function that is associated with the strong, short-ranged force resulting from the exchange of massive particles between two → nucleons in the same atomic nucleus. The potential has the form of V(r) = C. (1/r) exp (-K.r), where r is the distance between the nucleons and C and K are constants, giving measures of the strength and range of the force respectively.

In honor of the Japanese physicist Hideki Yukawa (1907-1981), winner of the 1949 Nobel Prize in Physics; → potential.

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