Mizar (ζ Ursae Majoris)
A star of visual magnitude 2.3 in the constellation → Ursa Major, which is the second star from the end of the → Big Dipper's handle. It forms a naked-eye double with → Alcor, lying at an angular separation of about 12 minutes of arc. Mizar is resolved into a 14''.4 → binary star (denoted A and B) with a probable period of thousands of years. Mizar A is a nearly equal-mass, → double-lined spectroscopic binary with period 20.54 days and → eccentricity of 0.53. The two components of Mizar A (denoted Aa and Ab) are both about 35 times as luminous as the Sun, and revolve around each other in about 20 days. Similarly, Mizar B is a → spectroscopic binary with a period of 175.57 days and an eccentricity of 0.46. Recent results suggest that Alcor is actually a binary and apparently → gravitationally bound to the Mizar system. This would make the Mizar-Alcor system a probable → sextuplet, lying at about 78 → light-years from Sun and the second closest such multiple known, after → Castor (Mamajek et al., 2010, AJ 139, 919).
Mizar, from Ar. al-Mi'zar (
Fr.: système MKS
The system of → MKS units.
Fr.: unités MKS
yâdsepâr (#), yâdsepârik
1) (adj.) Assisting or intended to assist the
From Gk. mnemonikos "of or pertaining to memory," from mnemon "remembering, mindful," from mnasthai "remember," from PIE base *men- "to think;" cf. Pers. man-, -mân, minu, → idea.
Yâdsepâr, stem of Yâdsepârdan "memorize," from yâd "remembrance, recollection, memory" (Mid.Pers. ayâd) + sepârdan, sepor- "to yield, give, hand over" (Mid.Pers. abespâr- "to hand over, entrust;" cf. O.N. spara, O.H.G. sparon, O.E. sparian, E. spare); yâdsepârik, → mnemonics.
Something capable of assisting one's memory. The process or technique of improving the memory.
1) Capable of moving or being moved readily.
From M.Fr. mobile, from L. mobilis "movable, easy to move; loose, not firm," contraction of *movibilis, from movere "to → move."
Miyâvâ verval adj. and agent noun from miyâvidan, → move.
Of or relating to mode, manner, or form.
The quality or state of being → modal.
1) Physics: Any of the distinct patterns of oscillation that a
given periodically varying system can have.
Mode, from Fr. mode, from L. modus "measure, rhythm, song, manner," from PIE base *med- "to measure, limit, judge, advise;" cf. L. meditari "to think or reflect upon, consider;" Av. mad- "to measure out, apportion, allot;" Gk. medein "to rule;" O.E. metan "to measure out."
Tarz "manner, mode," Arabicized as
1) (n.) model, tarzâl; 2) (v.) model sâxtan, tarzâlidan
Fr.: 1) modèle; 2) modéliser
1a) A mathematical representation of a process, system, or object
developed to understand its behavior or to make predictions. The
representation always involves certain simplifications and
assumptions. See also → theory,
1) Model, from Fr. modèle.
Tarzâl, from tarz, → mode + -âl,
vâbastegi bé model, ~ ~ tarzâl
Fr.: dépendance du modèle
In a theoretical analysis, the solution that does not correctly treat the intervening parameters, or neglects some crucial factors.
The simulation of a process, concept, or operation of a system often implemented by a computer program and making use of a mathematical treatment.
Verbal noun of → model
1) Relating or belonging to present and recent time.
→ modern physics.
From M.Fr. moderne, from L.L. modernus, from L. modo "lately, just now," from modo "to the measure," ablative of modus "manner, measure," → mode.
Novin, from now, → new, + -in adj. suffix, as in dirin, pasin, barin, kehin, mehin, behin, zirin, zabarin, pâyin, bâlâyin.
fizik-e novin (#)
Fr.: physique moderne
The physics developed since about 1900, which includes Einstein's → relativity theory and → quantum mechanics, as distinguished from → classical physics. Much of modern physics is concerned with the behavior of matter and energy under extreme conditions or on the very small scale.
1) Modern spirit or character.
1) An admirer of modern ideas, ways, etc.
1) The quality of being → modern.
1) The act of modernizing; the state of being modernized; something modernized.