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Dialytic telescopeDialytic Di`a*lyt"ic, a. [Gr. ?, fr. ?. See Dialysis.]
Having the quality of unloosing or separating. --Clarke.
Dialytic telescope, an achromatic telescope in which the
colored dispersion produced by a single object lens of
crown glass is corrected by a smaller concave lens, or
combination of lenses, of high dispersive power, placed at
a distance in the narrower part of the converging cone of
rays, usually near the middle of the tube. equatorial telescopeEquatorial E`qua*to"ri*al, n. (Astron.)
An instrument consisting of a telescope so mounted as to have
two axes of motion at right angles to each other, one of them
parallel to the axis of the earth, and each carrying a
graduated circle, the one for measuring declination, and the
other right ascension, or the hour angle, so that the
telescope may be directed, even in the daytime, to any star
or other object whose right ascension and declination are
known. The motion in right ascension is sometimes
communicated by clockwork, so as to keep the object
constantly in the field of the telescope. Called also an
equatorial telescope.
Note: The term equatorial, or equatorial instrument, is
sometimes applied to any astronomical instrument which
has its principal axis of rotation parallel to the axis
of the earth. Escopet
Escopet Es`co*pet", Escopette Es`co*pette", n. [Sp.
escopeta, F. escopette.]
A kind of firearm; a carbine.
Escopette
Escopet Es`co*pet", Escopette Es`co*pette", n. [Sp.
escopeta, F. escopette.]
A kind of firearm; a carbine.
Focal distance of a telescopeFocal Fo"cal, a. [Cf. F. focal. See Focus.]
Belonging to,or concerning, a focus; as, a focal point.
Focal distance, or length, of a lens or mirror (Opt.), the
distance of the focus from the surface of the lens or
mirror, or more exactly, in the case of a lens, from its
optical center.
Focal distance of a telescope, the distance of the image of
an object from the object glass. kinescopeKinetogenesis Ki*ne`to*gen"e*sis, n. [Gr. ? movable + -scope.]
An instrument for producing curves by the combination of
circular movements; -- called also kinescope. Phototelescope
Phototelescope Pho`to*tel"e*scope, n. (Astron.)
A telescope adapted for taking photographs of the heavenly
bodies.
prism telescopeTeinoscope Tei"no*scope, n. [Gr. ? to extend + -scope.]
(Physics)
An instrument formed by combining prisms so as to correct the
chromatic aberration of the light while linear dimensions of
objects seen through the prisms are increased or diminished;
-- called also prism telescope. --Sir D. Brewster. Refracting telescopeRefracting Re*fract"ing, a.
Serving or tending to refract; as, a refracting medium.
Refracting angle of a prism (Opt.), the angle of a
triangular prism included between the two sides through
which the refracted beam passes in the decomposition of
light.
Refracting telescope. (Opt.) See under Telescope. Sciotheric telescopeSciotheric Sci`o*ther"ic, a. [Cf. L. sciothericon a sundial.
See Sciatheric.]
Of or pertaining to a sundial.
Sciotheric telescope (Dialing), an instrument consisting of
a horizontal dial, with a telescope attached to it, used
for determining the time, whether of day or night. Telescope
Telescope Tel"e*scope (t[e^]l"[-e]*sk[=o]p), a.
Capable of being extended or compacted, like a telescope, by
the sliding of joints or parts one within the other;
telescopic; as, a telescope bag; telescope table, etc.
TelescopeTelescope Tel"e*scope, a. [imp. & p. p. Telescoped; p. pr. &
vb. n. Telescoping.]
To slide or pass one within another, after the manner of the
sections of a small telescope or spyglass; to come into
collision, as railway cars, in such a manner that one runs
into another. [Recent] Telescope
Telescope Tel"e*scope, v. t.
To cause to come into collision, so as to telescope. [Recent]
Telescope bag
Telescope bag Telescope bag
An adjustable traveling bag consisting of two cases, the
larger slipping over the other.
telescope or microscopeAxis Ax"is, n.; pl. Axes. [L. axis axis, axle. See Axle.]
A straight line, real or imaginary, passing through a body,
on which it revolves, or may be supposed to revolve; a line
passing through a body or system around which the parts are
symmetrically arranged.
2. (Math.) A straight line with respect to which the
different parts of a magnitude are symmetrically arranged;
as, the axis of a cylinder, i. e., the axis of a cone,
that is, the straight line joining the vertex and the
center of the base; the axis of a circle, any straight
line passing through the center.
3. (Bot.) The stem; the central part, or longitudinal
support, on which organs or parts are arranged; the
central line of any body. --Gray.
4. (Anat.)
(a) The second vertebra of the neck, or vertebra
dentata.
(b) Also used of the body only of the vertebra, which is
prolonged anteriorly within the foramen of the first
vertebra or atlas, so as to form the odontoid process
or peg which serves as a pivot for the atlas and head
to turn upon.
5. (Crystallog.) One of several imaginary lines, assumed in
describing the position of the planes by which a crystal
is bounded.
6. (Fine Arts) The primary or secondary central line of any
design.
Anticlinal axis (Geol.), a line or ridge from which the
strata slope downward on the two opposite sides.
Synclinal axis, a line from which the strata slope upward
in opposite directions, so as to form a valley.
Axis cylinder (Anat.), the neuraxis or essential, central
substance of a nerve fiber; -- called also axis band,
axial fiber, and cylinder axis.
Axis in peritrochio, the wheel and axle, one of the
mechanical powers.
Axis of a curve (Geom.), a straight line which bisects a
system of parallel chords of a curve; called a principal
axis, when cutting them at right angles, in which case it
divides the curve into two symmetrical portions, as in the
parabola, which has one such axis, the ellipse, which has
two, or the circle, which has an infinite number. The two
axes of the ellipse are the major axis and the minor
axis, and the two axes of the hyperbola are the
transverse axis and the conjugate axis.
Axis of a lens, the straight line passing through its
center and perpendicular to its surfaces.
Axis of a telescope or microscope, the straight line with
which coincide the axes of the several lenses which
compose it.
Axes of co["o]rdinates in a plane, two straight lines
intersecting each other, to which points are referred for
the purpose of determining their relative position: they
are either rectangular or oblique.
Axes of co["o]rdinates in space, the three straight lines
in which the co["o]rdinate planes intersect each other.
Axis of a balance, that line about which it turns.
Axis of oscillation, of a pendulum, a right line passing
through the center about which it vibrates, and
perpendicular to the plane of vibration.
Axis of polarization, the central line around which the
prismatic rings or curves are arranged. --Brewster.
Axis of revolution (Descriptive Geom.), a straight line
about which some line or plane is revolved, so that the
several points of the line or plane shall describe circles
with their centers in the fixed line, and their planes
perpendicular to it, the line describing a surface of
revolution, and the plane a solid of revolution.
Axis of symmetry (Geom.), any line in a plane figure which
divides the figure into two such parts that one part, when
folded over along the axis, shall coincide with the other
part.
Axis of the equator, ecliptic, horizon (or other circle
considered with reference to the sphere on which it lies),
the diameter of the sphere which is perpendicular to the
plane of the circle. --Hutton.
Axis of the Ionic capital (Arch.), a line passing
perpendicularly through the middle of the eye of the
volute.
Neutral axis (Mech.), the line of demarcation between the
horizontal elastic forces of tension and compression,
exerted by the fibers in any cross section of a girder.
Optic axis of a crystal, the direction in which a ray of
transmitted light suffers no double refraction. All
crystals, not of the isometric system, are either uniaxial
or biaxial.
Optic axis, Visual axis (Opt.), the straight line passing
through the center of the pupil, and perpendicular to the
surface of the eye.
Radical axis of two circles (Geom.), the straight line
perpendicular to the line joining their centers and such
that the tangents from any point of it to the two circles
shall be equal to each other.
Spiral axis (Arch.), the axis of a twisted column drawn
spirally in order to trace the circumvolutions without.
Axis of abscissas and Axis of ordinates. See Abscissa. TelescopedTelescope Tel"e*scope, a. [imp. & p. p. Telescoped; p. pr. &
vb. n. Telescoping.]
To slide or pass one within another, after the manner of the
sections of a small telescope or spyglass; to come into
collision, as railway cars, in such a manner that one runs
into another. [Recent] Telescopic sight
Telescopic sight Tel`e*scop"ic sight`
A sight consisting of a small telescope, as on a compass or
rifle.
Telescopically
Telescopically Tel`e*scop"ic*al*ly, adv.
In a telescopical manner; by or with the telescope.
TelescopingTelescope Tel"e*scope, a. [imp. & p. p. Telescoped; p. pr. &
vb. n. Telescoping.]
To slide or pass one within another, after the manner of the
sections of a small telescope or spyglass; to come into
collision, as railway cars, in such a manner that one runs
into another. [Recent] Telescopist
Telescopist Te*les"co*pist, n.
One who uses a telescope. --R. A. Proctor.
Telescopy
Telescopy Te*les"co*py, n.
The art or practice of using or making telescopes.
Volumescope
Volumescope Vo*lu"me*scope, n. [Volume + -scope.] (Physics)
An instrument consisting essentially of a glass tube provided
with a graduated scale, for exhibiting to the eye the changes
of volume of a gas or gaseous mixture resulting from chemical
action, and the like.
Volumescope
Volumescope Vo*lu"me*scope, n. [Volume + -scope.] (Physics)
An instrument consisting essentially of a glass tube provided
with a graduated scale, for exhibiting to the eye the changes
of volume of a gas or gaseous mixture resulting from chemical
action, etc.
Water telescope
Water telescope Water telescope
1. (Optics) A telescope in which the medium between the
objective and the eye piece is water instead of air, used
in some experiments in aberration.
2. A telescope devised for looking into a body of water.
Meaning of Escop from wikipedia
