Tendency of a body to preserve its state of rest or uniform motion in a straight line.
Inertia, from L. inertia "un-skillfulness, idleness," from iners (gen. inertis) "unskilled, inactive;" → inert.
Laxti "sluggishness, inertia."
Fr.: ellipsoïde d'inertie
An ellipsoid used in describing the motion of a rotating rigid body. It is stationary with respect to the rotating body, and is determined by the body's moments of inertia.
Fr.: inertiel, d'inertie
Of or relating to inertia.
Laxt, adj. of laxti, → inertia
niru-ye laxtinâk, ~ laxtimand
Fr.: force inertielle
cârcub-e laxtinâk, ~ laxtimand
Fr.: référentiel galiléen
jerm-e laxtinâk, ~ laxtimand
Fr.: masse inertielle
The mass of a body as determined from the acceleration of the body when it is subjected to a force that is not due to gravity.
jonbeš-e laxtinâk, ~ laxtimand
Fr.: mouvement inertiel
Motion free of any force, with constant velocity.
naveš-e laxtinâk, ~ laxtimand
Fr.: oscillation inertielle
1) A periodic motion of a particle that moves, free from external forces, over
the surface of a rotating sphere, such the Earth.
Inertial oscillations result from the → Coriolis force.
For example, a hockey puck launched on a big enough lake in the northern hemisphere
would turn to the right (east) and eventually loop back to nearly the initial
point (actually west of that point). The time it takes for the huckey puck
to return can be computed with the → Coriolis frequency.
inertial reference frame
cârcub-e bâzbord-e laxtinâk, ~ ~ laxtimand
Fr.: référentiel galiléen
A → reference frame or coordinate system in which there are no accelerations, only zero or uniform motion in a straight line. According to the special theory of relativity, it is impossible to distinguish between such frames by means of any internal measurement.
Fr.: chute vers le centre
The fall of matter toward the center of a region of gravitational influence.
1) The act or process of deriving logical conclusions from premises known or assumed
to be true.
From M.L. inferentia, from inferre, from → in- "in" + ferre "to carry, bear," cognate with Pers. bordan "to carry, bear," as below.
Darbord (on the models of daryâft "perception" and peybord "understanding, finding;" see also bâzbord, → reference), from dar-, → in-, + bord past stem of bordan "to carry, bear;" (Mid.Pers. burdan; O.Pers./Av. bar- "to bear, carry," Av. barəθre "to bear (infinitive);" Skt. bharati "he carries;" Gk. pherein; L. fero "to carry;" PIE base *bher- "to carry").
From L. inferior "lower," comp. form of inferus (adj.) "that is below or beneath," from infra "below" (→ infrared), cognate with Pers. zir, as below.
Zirin, adj. from zir "below, down," Mid.Pers. azêr "below, under," êr "below, down; low, under," adar "low;" Av. aδara- (adj.), aδairi- (prep.) "below;" cf. Skt. ádhara- "lower;" L. infra (adv., prep.) "below, underneath, beneath," inferus "lower;" O.E. under "under, among"); PIE base *ndher.
Fr.: conjonction inférieure
The conjunction of an inferior planet with the Sun when the planet is between the Sun and the Earth. → superior conjunction.
Fr.: culmination inférieure
sayyâre-ye zirin (#)
Fr.: planète inférieure
A planet that orbits between the Earth and the Sun. Mercury and Venus are the only two inferior planets in the Solar System.
Unlimited or unmeasurable in extent of space, duration of time, etc.
Fr.: population infinie
A → statistical population consisting of individuals or items which either possesses the infinite property through some limiting process or is non-enumerable. For example, the population of all → real numbers between 0 and 1 and the population of all → integers are examples of infinite population. In case of random sampling with replacement, any population is always infinite.
seri-ye bikarân (#)
Fr.: série infinie
A series with infinitely many terms, in other words a series that has no last term, such as 1 + 1/4 + 1/9 + 1/16 + · · · + 1/n2 + ... . The idea of infinite series is familiar from decimal expansions, for instance the expansion π = 3.14159265358979... can be written as π = 3 + 1/10 + 4/102 + 1/103 + 5/104 + 9/105 + 2/106 + 6/107 + 5/108 + 3/109 + 5/1010 + 8/1011 + ... , so π is an "infinite sum" of fractions. See also → finite series.
Fr.: ensemble infini
A set which can be put in a one-to-one correspondence with part of itself.
General: Indefinitely or exceedingly small.
Infinitesimal, coined by Ger. philosopher and mathematician Baron Gottfried Wilhelm von Leibniz (1646-1716) from N.L. infinitesim(us) "infinite in rank," from infinit(us), → infinite, + -esimus suffix of ordinal numerals + → -al.
Bikarânxord, from bikarân "unbounded, unlimited, infinite," from bi- "without" + karân "boundary, side, end" (variants karâné, kenâr, from Mid.Pers. karân, karânak, kenâr "edge, limit, boundary," Av. karana- "side, boundary, end") + xord "minute, little, small" (from Mid.Pers. xvart, xôrt "small, insignificant;" Av. ādra- "weak, dependent;" Skt. ādhrá- "small, weak, poor," nādh "to be oppressed;" Gk. nothros "sluggish;" PIE base *nhdhro-).