| slovo | definícia |
conical
(encz) | conical,kuželový adj: Zdeněk Brož |
Conical
(gcide) | Conic \Con"ic\, Conical \Con"ic*al\, a. [Gr. ?: cf. F. conique.
See Cone.]
1. Having the form of, or resembling, a geometrical cone;
round and tapering to a point, or gradually lessening in
circumference; as, a conic or conical figure; a conical
vessel.
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2. Of or pertaining to a cone; as, conic sections.
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Conic section (Geom.), a curved line formed by the
intersection of the surface of a right cone and a plane.
The conic sections are the parabola, ellipse, and
hyperbola. The right lines and the circle which result
from certain positions of the plane are sometimes, though
not generally included.
Conic sections, that branch of geometry which treats of the
parabola, ellipse, and hyperbola.
Conical pendulum. See Pendulum.
Conical projection, a method of delineating the surface of
a sphere upon a plane surface as if projected upon the
surface of a cone; -- much used by makers of maps in
Europe.
Conical surface (Geom.), a surface described by a right
line moving along any curve and always passing through a
fixed point that is not in the plane of that curve.
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conical
(wn) | conical
adj 1: relating to or resembling a cone; "conical mountains";
"conelike fruit" [syn: conic, conical, conelike,
cone-shaped] |
| | podobné slovo | definícia |
conical
(encz) | conical,kuželový adj: Zdeněk Brož |
conical buoy
(encz) | conical buoy, n: |
conical projection
(encz) | conical projection, n: |
conically
(encz) | conically, |
laconically
(encz) | laconically,lakonicky adv: Zdeněk Brož |
Conical pendulum
(gcide) | Pendulum \Pen"du*lum\, n.; pl. Pendulums. [NL., fr. L.
pendulus hanging, swinging. See Pendulous.]
A body so suspended from a fixed point as to swing freely to
and fro by the alternate action of gravity and momentum. It
is used to regulate the movements of clockwork and other
machinery.
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Note: The time of oscillation of a pendulum is independent of
the arc of vibration, provided this arc be small.
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Ballistic pendulum. See under Ballistic.
Compensation pendulum, a clock pendulum in which the effect
of changes of temperature of the length of the rod is so
counteracted, usually by the opposite expansion of
differene metals, that the distance of the center of
oscillation from the center of suspension remains
invariable; as, the mercurial compensation pendulum, in
which the expansion of the rod is compensated by the
opposite expansion of mercury in a jar constituting the
bob; the gridiron pendulum, in which compensation is
effected by the opposite expansion of sets of rods of
different metals.
Compound pendulum, an ordinary pendulum; -- so called, as
being made up of different parts, and contrasted with
simple pendulum.
Conical pendulum or Revolving pendulum, a weight
connected by a rod with a fixed point; and revolving in a
horizontal circle about the vertical from that point.
Pendulum bob, the weight at the lower end of a pendulum.
Pendulum level, a plumb level. See under Level.
Pendulum wheel, the balance of a watch.
Simple pendulum or Theoretical pendulum, an imaginary
pendulum having no dimensions except length, and no weight
except at the center of oscillation; in other words, a
material point suspended by an ideal line.
[1913 Webster]Conic \Con"ic\, Conical \Con"ic*al\, a. [Gr. ?: cf. F. conique.
See Cone.]
1. Having the form of, or resembling, a geometrical cone;
round and tapering to a point, or gradually lessening in
circumference; as, a conic or conical figure; a conical
vessel.
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2. Of or pertaining to a cone; as, conic sections.
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Conic section (Geom.), a curved line formed by the
intersection of the surface of a right cone and a plane.
The conic sections are the parabola, ellipse, and
hyperbola. The right lines and the circle which result
from certain positions of the plane are sometimes, though
not generally included.
Conic sections, that branch of geometry which treats of the
parabola, ellipse, and hyperbola.
Conical pendulum. See Pendulum.
Conical projection, a method of delineating the surface of
a sphere upon a plane surface as if projected upon the
surface of a cone; -- much used by makers of maps in
Europe.
Conical surface (Geom.), a surface described by a right
line moving along any curve and always passing through a
fixed point that is not in the plane of that curve.
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Conical projection
(gcide) | Projection \Pro*jec"tion\, n. [L. projectio: cf. F. projection.]
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1. The act of throwing or shooting forward.
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2. A jutting out; also, a part jutting out, as of a building;
an extension beyond something else.
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3. The act of scheming or planning; also, that which is
planned; contrivance; design; plan. --Davenant.
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4. (Persp.) The representation of something; delineation;
plan; especially, the representation of any object on a
perspective plane, or such a delineation as would result
were the chief points of the object thrown forward upon
the plane, each in the direction of a line drawn through
it from a given point of sight, or central point; as, the
projection of a sphere. The several kinds of projection
differ according to the assumed point of sight and plane
of projection in each.
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5. (Geog.) Any method of representing the surface of the
earth upon a plane.
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Conical projection, a mode of representing the sphere, the
spherical surface being projected upon the surface of a
cone tangent to the sphere, the point of sight being at
the center of the sphere.
Cylindric projection, a mode of representing the sphere,
the spherical surface being projected upon the surface of
a cylinder touching the sphere, the point of sight being
at the center of the sphere.
Globular, Gnomonic, Orthographic, projection,etc. See
under Globular, Gnomonic, etc.
Mercator's projection, a mode of representing the sphere in
which the meridians are drawn parallel to each other, and
the parallels of latitude are straight lines whose
distance from each other increases with their distance
from the equator, so that at all places the degrees of
latitude and longitude have to each other the same ratio
as on the sphere itself.
Oblique projection, a projection made by parallel lines
drawn from every point of a figure and meeting the plane
of projection obliquely.
Polar projection, a projection of the sphere in which the
point of sight is at the center, and the plane of
projection passes through one of the polar circles.
Powder of projection (Alchemy.), a certain powder cast into
a crucible or other vessel containing prepared metal or
other matter which is to be thereby transmuted into gold.
Projection of a point on a plane (Descriptive Geom.), the
foot of a perpendicular to the plane drawn through the
point.
Projection of a straight line of a plane, the straight line
of the plane connecting the feet of the perpendiculars let
fall from the extremities of the given line.
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Syn: See Protuberance.
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[1913 Webster]Conic \Con"ic\, Conical \Con"ic*al\, a. [Gr. ?: cf. F. conique.
See Cone.]
1. Having the form of, or resembling, a geometrical cone;
round and tapering to a point, or gradually lessening in
circumference; as, a conic or conical figure; a conical
vessel.
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2. Of or pertaining to a cone; as, conic sections.
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Conic section (Geom.), a curved line formed by the
intersection of the surface of a right cone and a plane.
The conic sections are the parabola, ellipse, and
hyperbola. The right lines and the circle which result
from certain positions of the plane are sometimes, though
not generally included.
Conic sections, that branch of geometry which treats of the
parabola, ellipse, and hyperbola.
Conical pendulum. See Pendulum.
Conical projection, a method of delineating the surface of
a sphere upon a plane surface as if projected upon the
surface of a cone; -- much used by makers of maps in
Europe.
Conical surface (Geom.), a surface described by a right
line moving along any curve and always passing through a
fixed point that is not in the plane of that curve.
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Conical pulley
(gcide) | Pulley \Pul"ley\, n.; pl. Pulleys. [F. poulie, perhaps of
Teutonic origin (cf. Poll, v. t.); but cf. OE. poleine,
polive, pulley, LL. polanus, and F. poulain, properly, a
colt, fr. L. pullus young animal, foal (cf. Pullet,
Foal). For the change of sense, cf. F. poutre beam,
originally, a filly, and E. easel.] (Mach.)
A wheel with a broad rim, or grooved rim, for transmitting
power from, or imparting power to, the different parts of
machinery, or for changing the direction of motion, by means
of a belt, cord, rope, or chain.
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Note: The pulley, as one of the mechanical powers, consists,
in its simplest form, of a grooved wheel, called a
sheave, turning within a movable frame or block, by
means of a cord or rope attached at one end to a fixed
point. The force, acting on the free end of the rope,
is thus doubled, but can move the load through only
half the space traversed by itself. The rope may also
pass over a sheave in another block that is fixed. The
end of the rope may be fastened to the movable block,
instead of a fixed point, with an additional gain of
power, and using either one or two sheaves in the fixed
block. Other sheaves may be added, and the power
multiplied accordingly. Such an apparatus is called by
workmen a block and tackle, or a fall and tackle.
See Block. A single fixed pulley gives no increase of
power, but serves simply for changing the direction of
motion.
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Band pulley, or Belt pulley, a pulley with a broad face
for transmitting power between revolving shafts by means
of a belt, or for guiding a belt.
Cone pulley. See Cone pulley.
Conical pulley, one of a pair of belt pulleys, each in the
shape of a truncated cone, for varying velocities.
Fast pulley, a pulley firmly attached upon a shaft.
Loose pulley, a pulley loose on a shaft, to interrupt the
transmission of motion in machinery. See {Fast and loose
pulleys}, under Fast.
Parting pulley, a belt pulley made in semicircular halves,
which can be bolted together, to facilitate application
to, or removal from, a shaft.
Pulley block. Same as Block, n. 6.
Pulley stile (Arch.), the upright of the window frame into
which a pulley is fixed and along which the sash slides.
Split pulley, a parting pulley.
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Conical refraction
(gcide) | Refraction \Re*frac"tion\ (r?*fr?k"sh?n), n. [F. r['e]fraction.]
1. The act of refracting, or the state of being refracted.
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2. The change in the direction of ray of light, heat, or the
like, when it enters obliquely a medium of a different
density from that through which it has previously moved.
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Refraction out of the rarer medium into the denser,
is made towards the perpendicular. --Sir I.
Newton.
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3. (Astron.)
(a) The change in the direction of a ray of light, and,
consequently, in the apparent position of a heavenly
body from which it emanates, arising from its passage
through the earth's atmosphere; -- hence distinguished
as atmospheric refraction, or astronomical refraction.
(b) The correction which is to be deducted from the
apparent altitude of a heavenly body on account of
atmospheric refraction, in order to obtain the true
altitude.
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Angle of refraction (Opt.), the angle which a refracted ray
makes with the perpendicular to the surface separating the
two media traversed by the ray.
Conical refraction (Opt.), the refraction of a ray of light
into an infinite number of rays, forming a hollow cone.
This occurs when a ray of light is passed through crystals
of some substances, under certain circumstances. Conical
refraction is of two kinds; external conical refraction,
in which the ray issues from the crystal in the form of a
cone, the vertex of which is at the point of emergence;
and internal conical refraction, in which the ray is
changed into the form of a cone on entering the crystal,
from which it issues in the form of a hollow cylinder.
This singular phenomenon was first discovered by Sir W. R.
Hamilton by mathematical reasoning alone, unaided by
experiment.
Differential refraction (Astron.), the change of the
apparent place of one object relative to a second object
near it, due to refraction; also, the correction required
to be made to the observed relative places of the two
bodies.
Double refraction (Opt.), the refraction of light in two
directions, which produces two distinct images. The power
of double refraction is possessed by all crystals except
those of the isometric system. A uniaxial crystal is said
to be optically positive (like quartz), or optically
negative (like calcite), or to have positive, or negative,
double refraction, according as the optic axis is the axis
of least or greatest elasticity for light; a biaxial
crystal is similarly designated when the same relation
holds for the acute bisectrix.
Index of refraction. See under Index.
Refraction circle (Opt.), an instrument provided with a
graduated circle for the measurement of refraction.
Refraction of latitude, longitude, declination, {right
ascension}, etc., the change in the apparent latitude,
longitude, etc., of a heavenly body, due to the effect of
atmospheric refraction.
Terrestrial refraction, the change in the apparent altitude
of a distant point on or near the earth's surface, as the
top of a mountain, arising from the passage of light from
it to the eye through atmospheric strata of varying
density.
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Conical surface
(gcide) | Conic \Con"ic\, Conical \Con"ic*al\, a. [Gr. ?: cf. F. conique.
See Cone.]
1. Having the form of, or resembling, a geometrical cone;
round and tapering to a point, or gradually lessening in
circumference; as, a conic or conical figure; a conical
vessel.
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2. Of or pertaining to a cone; as, conic sections.
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Conic section (Geom.), a curved line formed by the
intersection of the surface of a right cone and a plane.
The conic sections are the parabola, ellipse, and
hyperbola. The right lines and the circle which result
from certain positions of the plane are sometimes, though
not generally included.
Conic sections, that branch of geometry which treats of the
parabola, ellipse, and hyperbola.
Conical pendulum. See Pendulum.
Conical projection, a method of delineating the surface of
a sphere upon a plane surface as if projected upon the
surface of a cone; -- much used by makers of maps in
Europe.
Conical surface (Geom.), a surface described by a right
line moving along any curve and always passing through a
fixed point that is not in the plane of that curve.
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Conicality
(gcide) | Conicality \Con`i*cal"i*ty\, n.
Conicalness.
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Conically
(gcide) | Conically \Con"ic*al*ly\, adv.
In the form of a cone.
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Conicalness
(gcide) | Conicalness \Con"ic*al*ness\, n.
State or quality of being conical.
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Iconical
(gcide) | Iconical \I*con"ic*al\, a.
Pertaining to, or consisting of, images, pictures, or
representations of any kind.
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Laconical
(gcide) | Laconic \La*con"ic\, Laconical \La*con"ic*al\, a. [L. Laconicus
Laconian, Gr. ??, fr. ?? a Laconian, Laced[ae]monian, or
Spartan: cf. F. laconique.]
1. Expressing much in few words, after the manner of the
Laconians or Spartans; brief and pithy; concise; brusque;
epigrammatic. In this sense laconic is the usual form.
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I grow laconic even beyond laconicism; for sometimes
I return only yes, or no, to questionary or
petitionary epistles of half a yard long. --Pope.
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His sense was strong and his style laconic.
--Welwood.
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2. Laconian; characteristic of, or like, the Spartans; hence,
stern or severe; cruel; unflinching.
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His head had now felt the razor, his back the rod;
all that laconical discipline pleased him well.
--Bp. Hall.
Syn: Short; brief; concise; succinct; sententious; pointed;
pithy.
Usage: Laconic, Concise. Concise means without irrelevant
or superfluous matter; it is the opposite of diffuse.
Laconic means concise with the additional quality of
pithiness, sometimes of brusqueness.
[1913 Webster]Laconical \La*con"ic*al\, a.
See Laconic, a.
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Laconically
(gcide) | Laconically \La*con"ic*al*ly\, adv.
In a laconic manner.
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Obconical
(gcide) | Obconic \Ob*con"ic\, Obconical \Ob*con"ic*al\, a. [Pref. ob- +
conic, conical.]
Conical, but having the apex downward; inversely conical.
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Plano-conical
(gcide) | Plano-conical \Pla"no-con"ic*al\, a. [Plano- + conical.]
Plane or flat on one side, and conical on the other. --Grew.
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Subconical
(gcide) | Subconical \Sub*con"ic*al\, a.
Slightly conical.
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conical
(wn) | conical
adj 1: relating to or resembling a cone; "conical mountains";
"conelike fruit" [syn: conic, conical, conelike,
cone-shaped] |
conical buoy
(wn) | conical buoy
n 1: a buoy resembling a cone [syn: conical buoy, nun, {nun
buoy}] |
conical projection
(wn) | conical projection
n 1: a map projection of the globe onto a cone with its point
over one of the earth's poles [syn: conic projection,
conical projection] |
conically
(wn) | conically
adv 1: in a conical manner; "conically shaped" |
laconically
(wn) | laconically
adv 1: in a dry laconic manner; "I know that," he said dryly
[syn: laconically, dryly, drily] |
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