| slovo | definícia |
rotation
(mass) | rotation
- otočenie |
rotation
(encz) | rotation,oběh n: RNDr. Pavel Piskač |
rotation
(encz) | rotation,otáčení n: Zdeněk Brož |
rotation
(encz) | rotation,otočení n: Zdeněk Brož |
rotation
(encz) | rotation,rotace n: Zdeněk Brož |
Rotation
(gcide) | Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster] |
Rotation
(gcide) | Rotation \Ro*ta"tion\, a.
Pertaining to, or resulting from, rotation; of the nature of,
or characterized by, rotation; as, rotational velocity.
[1913 Webster] |
rotation
(wn) | rotation
n 1: the act of rotating as if on an axis; "the rotation of the
dancer kept time with the music" [syn: rotation, {rotary
motion}]
2: (mathematics) a transformation in which the coordinate axes
are rotated by a fixed angle about the origin
3: a single complete turn (axial or orbital); "the plane made
three rotations before it crashed"; "the revolution of the
earth about the sun takes one year" [syn: rotation,
revolution, gyration]
4: a planned recurrent sequence (of crops or personnel etc.);
"crop rotation makes a balanced demand on the fertility of
the soil"; "the manager had only four starting pitchers in
his rotation" |
| | podobné slovo | definícia |
clockwise rotation
(encz) | clockwise rotation, n: |
counterclockwise rotation
(encz) | counterclockwise rotation, n: |
crop rotation
(encz) | crop rotation, |
dextrorotation
(encz) | dextrorotation,pravotočivost n: Zdeněk Brož |
levorotation
(encz) | levorotation, n: |
orbital rotation
(encz) | orbital rotation, n: |
post-rotational nystagmus
(encz) | post-rotational nystagmus, n: |
rotation speed
(encz) | rotation speed,otáčky n: Zdeněk Brož |
rotational
(encz) | rotational,otáčivý adj: Zdeněk Brož |
rotational latency
(encz) | rotational latency, n: |
rotational nystagmus
(encz) | rotational nystagmus, n: |
rotational speed
(encz) | rotational speed,otáčky n: Zdeněk Brož |
rotationally
(encz) | rotationally, |
rotations
(encz) | rotations,rotace pl. Zdeněk Brož |
Circumrotation
(gcide) | Circumrotation \Cir`cum*ro*ta"tion\, n.
The act of rolling or revolving round, as a wheel;
circumvolution; the state of being whirled round. --J.
Gregory.
[1913 Webster] |
Contrarotation
(gcide) | Contrarotation \Con`tra*ro*ta"tion\, n.
Circular motion in a direction contrary to some other
circular motion.
[1913 Webster] |
Instantaneous axis of rotation
(gcide) | Instantaneous \In`stan*ta"ne*ous\, a. [Cf. F. instantan['e].]
[1913 Webster]
1. Done or occurring in an instant, or without any
perceptible duration of time; as, the passage of
electricity appears to be instantaneous.
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His reason saw
With instantaneous view, the truth of things.
--Thomson.
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2. At or during a given instant; as, instantaneous
acceleration, velocity, etc.
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Instantaneous center of rotation (Kinematics), in a plane
or in a plane figure which has motions both of translation
and of rotation in the plane, is the point which for the
instant is at rest.
Instantaneous axis of rotation (Kinematics), in a body
which has motions both of translation and rotation, is a
line, which is supposed to be rigidly united with the
body, and which for the instant is at rest. The motion of
the body is for the instant simply that of rotation about
the instantaneous axis. -- In`stan*ta"ne*ous*ly, adv. --
In`stan*ta"ne*ous*ness, n.
[1913 Webster] |
Instantaneous center of rotation
(gcide) | Instantaneous \In`stan*ta"ne*ous\, a. [Cf. F. instantan['e].]
[1913 Webster]
1. Done or occurring in an instant, or without any
perceptible duration of time; as, the passage of
electricity appears to be instantaneous.
[1913 Webster]
His reason saw
With instantaneous view, the truth of things.
--Thomson.
[1913 Webster]
2. At or during a given instant; as, instantaneous
acceleration, velocity, etc.
[1913 Webster]
Instantaneous center of rotation (Kinematics), in a plane
or in a plane figure which has motions both of translation
and of rotation in the plane, is the point which for the
instant is at rest.
Instantaneous axis of rotation (Kinematics), in a body
which has motions both of translation and rotation, is a
line, which is supposed to be rigidly united with the
body, and which for the instant is at rest. The motion of
the body is for the instant simply that of rotation about
the instantaneous axis. -- In`stan*ta"ne*ous*ly, adv. --
In`stan*ta"ne*ous*ness, n.
[1913 Webster] |
Irrotational
(gcide) | Irrotational \Ir`ro*ta"tion*al\, a. (Physics)
Not rotatory; passing from one point to another by a movement
other than rotation; -- said of the movement of parts of a
liquid or yielding mass. --Sir W. Thomson.
[1913 Webster] |
laevorotation
(gcide) | Levorotation \Le`vo*ro*ta"tion\, n. [Written also
l[ae]vorotation.] [Levo- + rotation.] (Physics & Chem.)
Rotation in the direction of an outgoing right-handed screw;
counter-clockwise rotation; -- applied chiefly to the turning
of the plane of polarization of light.
[Webster 1913 Suppl.] |
Levorotation
(gcide) | Levorotation \Le`vo*ro*ta"tion\, n. [Written also
l[ae]vorotation.] [Levo- + rotation.] (Physics & Chem.)
Rotation in the direction of an outgoing right-handed screw;
counter-clockwise rotation; -- applied chiefly to the turning
of the plane of polarization of light.
[Webster 1913 Suppl.] |
moment of rotation
(gcide) | Moment \Mo"ment\, n. [F. moment, L. momentum, for movimentum
movement, motion, moment, fr. movere to move. See Move, and
cf. Momentum, Movement.]
1. A minute portion of time; a point of time; an instant; as,
at that very moment.
[1913 Webster]
In a moment, in the twinkling of an eye. --1 Cor.
xv. 52.
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2. Impulsive power; force; momentum.
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The moments or quantities of motion in bodies.
--Berkley.
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Touch, with lightest moment of impulse,
His free will. --Milton.
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3. Importance, as in influence or effect; consequence; weight
or value; consideration.
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Matters of great moment. --Shak.
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It is an abstruse speculation, but also of far less
moment and consequence of us than the others.
--Bentley.
[1913 Webster]
4. An essential element; a deciding point, fact, or
consideration; an essential or influential circumstance.
[1913 Webster]
5. (Math.) An infinitesimal change in a varying quantity; an
increment or decrement. [Obs.]
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6. (Mech.) Tendency, or measure of tendency, to produce
motion, esp. motion about a fixed point or axis.
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Moment of a couple (Mech.), the product of either of its
forces into the perpendicular distance between them.
Moment of a force. (Mech.)
(a) With respect to a point, the product of the intensity
of the force into the perpendicular distance from the
point to the line of direction of the force.
(b) With respect to a line, the product of that component
of the force which is perpendicular to the plane
passing through the line and the point of application
of the force, into the shortest distance between the
line and this point.
(c) With respect to a plane that is parallel to the force,
the product of the force into the perpendicular
distance of its point of application from the plane.
Moment of inertia, of a rotating body, the sum of the mass
of each particle of matter of the body into the square of
its distance from the axis of rotation; -- called also
moment of rotation and moment of the mass.
Statical moment, the product of a force into its leverage;
the same as moment of a force with respect to a point,
line, etc.
Virtual moment. See under Virtual.
[1913 Webster]
Syn: Instant; twinkling; consequence; weight; force; value;
consideration; signification; avail.
[1913 Webster]Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster] |
Moment of rotation
(gcide) | Moment \Mo"ment\, n. [F. moment, L. momentum, for movimentum
movement, motion, moment, fr. movere to move. See Move, and
cf. Momentum, Movement.]
1. A minute portion of time; a point of time; an instant; as,
at that very moment.
[1913 Webster]
In a moment, in the twinkling of an eye. --1 Cor.
xv. 52.
[1913 Webster]
2. Impulsive power; force; momentum.
[1913 Webster]
The moments or quantities of motion in bodies.
--Berkley.
[1913 Webster]
Touch, with lightest moment of impulse,
His free will. --Milton.
[1913 Webster]
3. Importance, as in influence or effect; consequence; weight
or value; consideration.
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Matters of great moment. --Shak.
[1913 Webster]
It is an abstruse speculation, but also of far less
moment and consequence of us than the others.
--Bentley.
[1913 Webster]
4. An essential element; a deciding point, fact, or
consideration; an essential or influential circumstance.
[1913 Webster]
5. (Math.) An infinitesimal change in a varying quantity; an
increment or decrement. [Obs.]
[1913 Webster]
6. (Mech.) Tendency, or measure of tendency, to produce
motion, esp. motion about a fixed point or axis.
[1913 Webster]
Moment of a couple (Mech.), the product of either of its
forces into the perpendicular distance between them.
Moment of a force. (Mech.)
(a) With respect to a point, the product of the intensity
of the force into the perpendicular distance from the
point to the line of direction of the force.
(b) With respect to a line, the product of that component
of the force which is perpendicular to the plane
passing through the line and the point of application
of the force, into the shortest distance between the
line and this point.
(c) With respect to a plane that is parallel to the force,
the product of the force into the perpendicular
distance of its point of application from the plane.
Moment of inertia, of a rotating body, the sum of the mass
of each particle of matter of the body into the square of
its distance from the axis of rotation; -- called also
moment of rotation and moment of the mass.
Statical moment, the product of a force into its leverage;
the same as moment of a force with respect to a point,
line, etc.
Virtual moment. See under Virtual.
[1913 Webster]
Syn: Instant; twinkling; consequence; weight; force; value;
consideration; signification; avail.
[1913 Webster]Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster] |
Negative rotation
(gcide) | Negative \Neg"a*tive\ (n[e^]g"[.a]*t[i^]v), a. [F. n['e]gatif,
L. negativus, fr. negare to deny. See Negation.]
1. Denying; implying, containing, or asserting denial,
negation or refusal; returning the answer no to an inquiry
or request; refusing assent; as, a negative answer; a
negative opinion; -- opposed to affirmative.
[1913 Webster]
If thou wilt confess,
Or else be impudently negative. --Shak.
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Denying me any power of a negative voice. --Eikon
Basilike.
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Something between an affirmative bow and a negative
shake. --Dickens.
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2. Not positive; without affirmative statement or
demonstration; indirect; consisting in the absence of
something; privative; as, a negative argument; negative
evidence; a negative morality; negative criticism.
[1913 Webster]
There in another way of denying Christ, . . . which
is negative, when we do not acknowledge and confess
him. --South.
[1913 Webster]
3. (Logic) Asserting absence of connection between a subject
and a predicate; as, a negative proposition.
[1913 Webster]
4. (Photog.) Of or pertaining to a picture upon glass or
other material, in which the lights and shades of the
original, and the relations of right and left, are
reversed.
[1913 Webster]
5. (Chem.) Metalloidal; nonmetallic; -- contrasted with
positive or basic; as, the nitro group is negative.
[1913 Webster]
Note: This word, derived from electro-negative, is now
commonly used in a more general sense, when acidiferous
is the intended signification.
[1913 Webster]
Negative crystal.
(a) A cavity in a mineral mass, having the form of a
crystal.
(b) A crystal which has the power of negative double
refraction. See refraction.
negative electricity (Elec.), the kind of electricity which
is developed upon resin or ebonite when rubbed, or which
appears at that pole of a voltaic battery which is
connected with the plate most attacked by the exciting
liquid; -- formerly called resinous electricity. Opposed
to positive electricity. Formerly, according to
Franklin's theory of a single electric fluid, negative
electricity was supposed to be electricity in a degree
below saturation, or the natural amount for a given body.
See Electricity.
Negative eyepiece. (Opt.) see under Eyepiece.
Negative quantity (Alg.), a quantity preceded by the
negative sign, or which stands in the relation indicated
by this sign to some other quantity. See Negative sign
(below).
Negative rotation, right-handed rotation. See
Right-handed, 3.
Negative sign, the sign -, or minus (opposed in
signification to +, or plus), indicating that the
quantity to which it is prefixed is to be subtracted from
the preceding quantity, or is to be reckoned from zero or
cipher in the opposite direction to that of quanties
having the sign plus either expressed or understood; thus,
in a - b, b is to be substracted from a, or regarded as
opposite to it in value; and -10[deg] on a thermometer
means 10[deg] below the zero of the scale.
[1913 Webster] |
Positive rotation
(gcide) | Positive \Pos"i*tive\, a. [OE. positif, F. positif, L.
positivus. See Position.]
1. Having a real position, existence, or energy; existing in
fact; real; actual; -- opposed to negative. "Positive
good." --Bacon.
[1913 Webster]
2. Derived from an object by itself; not dependent on
changing circumstances or relations; absolute; -- opposed
to relative; as, the idea of beauty is not positive, but
depends on the different tastes individuals.
[1913 Webster]
3. Definitely laid down; explicitly stated; clearly
expressed; -- opposed to implied; as, a positive
declaration or promise.
[1913 Webster]
Positive words, that he would not bear arms against
King Edward's son. --Bacon.
[1913 Webster]
4. Hence: Not admitting of any doubt, condition,
qualification, or discretion; not dependent on
circumstances or probabilities; not speculative;
compelling assent or obedience; peremptory; indisputable;
decisive; as, positive instructions; positive truth;
positive proof. "'T is positive 'gainst all exceptions."
--Shak.
[1913 Webster]
5. Prescribed by express enactment or institution; settled by
arbitrary appointment; said of laws.
[1913 Webster]
In laws, that which is natural bindeth universally;
that which is positive, not so. --Hooker.
[1913 Webster]
6. Fully assured; confident; certain; sometimes,
overconfident; dogmatic; overbearing; -- said of persons.
[1913 Webster]
Some positive, persisting fops we know,
That, if once wrong, will needs be always. --Pope.
[1913 Webster]
7. Having the power of direct action or influence; as, a
positive voice in legislation. --Swift.
[1913 Webster]
8. (Photog.) Corresponding with the original in respect to
the position of lights and shades, instead of having the
lights and shades reversed; as, a positive picture.
[1913 Webster]
9. (Chem.)
(a) Electro-positive.
(b) Hence, basic; metallic; not acid; -- opposed to
negative, and said of metals, bases, and basic
radicals.
[1913 Webster]
10. (Mach. & Mech.)
(a) Designating, or pertaining to, a motion or device in
which the movement derived from a driver, or the grip
or hold of a restraining piece, is communicated
through an unyielding intermediate piece or pieces;
as, a claw clutch is a positive clutch, while a
friction clutch is not.
(b) Designating, or pertaining to, a device giving a
to-and-fro motion; as, a positive dobby.
[Webster 1913 Suppl.]
11. (Vehicles) Designating a method of steering or turning in
which the steering wheels move so that they describe
concentric arcs in making a turn, to insure freedom from
side slip or harmful resistance.
[Webster 1913 Suppl.]
Positive crystals (Opt.), a doubly refracting crystal in
which the index of refraction for the extraordinary ray is
greater than for the ordinary ray, and the former is
refracted nearer to the axis than the latter, as quartz
and ice; -- opposed to negative crystal, or one in which
this characteristic is reversed, as Iceland spar,
tourmaline, etc.
Positive degree (Gram.), that state of an adjective or
adverb which denotes simple quality, without comparison or
relation to increase or diminution; as, wise, noble.
Positive electricity (Elec), the kind of electricity which
is developed when glass is rubbed with silk, or which
appears at that pole of a voltaic battery attached to the
plate that is not attacked by the exciting liquid; --
formerly called vitreous electricity; -- opposed to
negative electricity.
Positive eyepiece. See under Eyepiece.
Positive law. See Municipal law, under Law.
Positive motion (Mach.), motion which is derived from a
driver through unyielding intermediate pieces, or by
direct contact, and not through elastic connections, nor
by means of friction, gravity, etc.; definite motion.
Positive philosophy. See Positivism.
Positive pole.
(a) (Elec.) The pole of a battery or pile which yields
positive or vitreous electricity; -- opposed to
negative pole.
(b) (Magnetism) The north pole. [R.]
Positive quantity (Alg.), an affirmative quantity, or one
affected by the sign plus [+].
Positive rotation (Mech.), left-handed rotation.
Positive sign (Math.), the sign [+] denoting plus, or more,
or addition.
[1913 Webster] |
Rotation
(gcide) | Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster]Rotation \Ro*ta"tion\, a.
Pertaining to, or resulting from, rotation; of the nature of,
or characterized by, rotation; as, rotational velocity.
[1913 Webster] |
Rotation in office
(gcide) | Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster] |
Rotation of crops
(gcide) | Rotation \Ro*ta"tion\, n. [L. rotatio: cf. F. rotation.]
1. The act of turning, as a wheel or a solid body on its
axis, as distinguished from the progressive motion of a
revolving round another body or a distant point; thus, the
daily turning of the earth on its axis is a rotation; its
annual motion round the sun is a revolution.
[1913 Webster]
2. Any return or succesion in a series.
[1913 Webster]
Moment of rotation. See Moment of inertia, under
Moment.
Rotation in office, the practice of changing public
officers at frequent intervals by discharges and
substitutions.
Rotation of crops, the practices of cultivating an orderly
succession of different crops on the same land.
[1913 Webster] |
axial rotation
(wn) | axial rotation
n 1: rotary motion of an object around its own axis; "wheels in
axial rotation" [syn: axial rotation, axial motion,
roll] |
axis of rotation
(wn) | axis of rotation
n 1: the center around which something rotates [syn: axis,
axis of rotation] |
clockwise rotation
(wn) | clockwise rotation
n 1: rotation to the right [syn: dextrorotation, {clockwise
rotation}] [ant: counterclockwise rotation,
levorotation] |
counterclockwise rotation
(wn) | counterclockwise rotation
n 1: rotation to the left [syn: levorotation,
counterclockwise rotation] [ant: clockwise rotation,
dextrorotation] |
dextrorotation
(wn) | dextrorotation
n 1: rotation to the right [syn: dextrorotation, {clockwise
rotation}] [ant: counterclockwise rotation,
levorotation] |
levorotation
(wn) | levorotation
n 1: rotation to the left [syn: levorotation,
counterclockwise rotation] [ant: clockwise rotation,
dextrorotation] |
orbital rotation
(wn) | orbital rotation
n 1: motion of an object in an orbit around a fixed point;
"satellites in orbital rotation" [syn: orbital rotation,
orbital motion] |
post-rotational nystagmus
(wn) | post-rotational nystagmus
n 1: nystagmus caused by suddenly stopping the rapid rotation of
the body; large slow movements of the eyeballs are in the
direction opposite to the direction of rotation |
rotational
(wn) | rotational
adj 1: of or pertaining to rotation; "rotational inertia" |
rotational latency
(wn) | rotational latency
n 1: (computer science) the time it takes for a specific block
of data on a data track to rotate around to the read/write
head [syn: rotational latency, latency] |
rotational nystagmus
(wn) | rotational nystagmus
n 1: nystagmus caused by the body rotating rapidly; large slow
movements of the eyeballs are in the direction of rotation |
rotationally
(wn) | rotationally
adv 1: in a rotational manner; "the required influence lines are
found by subjecting the model to small displacements
horizontally, vertically and rotationally" |
backup rotation
(foldoc) | backup rotation
Any system for re-using backup media,
e.g. magnetic tape. One extreme would be to use the same
media for every backup (e.g. copy disk A to disk B), the other
extreme would be to use new media every time. The trade-off
is between the cost of buying and storing media and the
ability to restore any version of any file. One example is
the Grandfather, Father, Son (GFS) scheme.
(2004-10-08)
|
rotational latency
(foldoc) | rotational latency
The time for the start of the required
sector on a disk to appear underneath the {read/write
head}. The worst case is where it has just passed the head
when the request is received. For a disk drive with N heads
per surface, rotating at R revolutions per minute, the average
rotational latency will be
L = 30/NR seconds.
Rotational latency is one component of access time.
(2009-11-06)
|
rotations per minute
(foldoc) | revolutions per minute
rotations per minute
rpm
(rpm, rarely: rotations per minute) A unit of {angular
velocity} equal to 1/60 of a revolution per second.
(2015-02-26)
|
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