He had to arrange the size of the orbits that suited best, then the positions of their centres, both being supposed excentric with respect to the sun; but he could not get any such arrangement to work with uniform motion about the sun.
He adopted the excentric and equant of Hipparchus to explain the unequal motions of the sun and moon.
Furthermore, either system could use the excentricof Hipparchus to explain the irregular motion known as the equation of the centre.
A circle having this centre was called the equant, and he supposed that a radius drawn to the sun from the excentric passes over equal arcs on the equant in equal times.
We may look upon these epicycles of Apollonius, and the excentric of Hipparchus, as the responses of these astronomers to the demand of Plato for uniform circular motions.
He located the moon's excentric as he had done the sun's.
But Copernicus remarked that he could also use an epicycle for this purpose, or that he could use both an excentric and an epicycle for each planet, and so bring theory still closer into accord with observation.
The moon moves on an epicycle centred on a second epicycle, itself centred on a deferent, excentric to the earth.
Vickars caught the look of wonder on Arthur's face, and said, "Ah!
Give it the right name, you that are so honest, and say lying gossip.
The absurdity of his position moved him like a caricature.
Pileus= more or less excentric or regular, margin at first involute.
Stem= when present central, excentric or lateral, hard and firm, continuous with the flesh of the pileus.
Stem= excentric and lateral, obese, reticulated at the apex, blackish at the base.
The stems of some species of Clitocybe and Omphalia if growing laterally are sometimes excentric and oblique.
An excentric or an ellipse, moved directly by a toothed wheel, lifts the movable branch of the shears, and forces it to cut the iron bars presented to it.
The fan A C here represented is of the best excentric form, as constructed by Messrs.
D is the circular orifice round the axis by which the air is admitted; and C C B is the excentric channel through which the air is wafted towards the main discharge pipe E.
The same cupola may receive at a time from one to six tuyeres, through which the wind is propelled by the centrifugal action of an excentric fan or ventilator.
The line joining the centre of the earth to the excentric passes through the apses of the sun's orbit, where its distance from the earth is greatest and least.
In his planetary theory he found that the places given by his adopted excentric did not fit, being one way at apogee and the other at perigee; so that the centre of distance must be nearer the earth.
Concentro-excentric Bent forward and inclined to the other side (from the person): Suspicion.
Excentro-excentric Bent backward and inclined to the other side (from the person): Pride.
Cephalis ovate, with numerous small pores, and anexcentric conical horn of the same length.
The shell in all Circoporida exhibits a simple, excentric mouth, which corresponds to the main osculum of the central capsule.
Cephalis subspherical, with an excentric conical horn of the same length.
They are usually parallel to the main axis, which is determined by the excentric position of the mouth and the centre of the sphere (figs.
The excentric position of this shell-mouth has no influence on the regular form of the shell.
Cephalis slenderly ovate, with an excentric pyramidal horn of the same length.
The volcano of Stromboli, showing the excentric position of the crater (after a sketch by Judd).
Of course spelling and reading are two different things; the excentric visual acuity may perfectly suffice for the recognition of single letters, central and also excentric visual acuity is necessary for reading.
I have seen a case in which the squinting eye possessed a visual acuteness of 5/36 together with excentric fixation and nystagmus; however, I attach no value to isolated cases.
The best eye is covered with a red glass, so that the objects projected from the fixation point, as well as the excentric field of vision of this eye, appear red.
Does this hold good for all cases of amblyopia in squint, or do those cases only belong to amblyopia from non-use where excentric fixation takes place with an inward deviating visual axis?
As another example, suppose we have a circular cylinder whose mass-centre is at an excentric point, rolling on a horizontal plane.
Thus for a circular orbit with the centre of force at an excentric point, the hodograph is a conic with the pole as focus.
If the co-ordinate axes are the principal axes of the ellipse, the angle nt in (10) is identical with the "excentric angle.
Pileus at first resupinate; gills radiating from an excentric point; then reflexed, sessile.
It occupies an oftenexcentric position within the germinal vesicle, and is usually rendered very conspicuous by its high refrangibility.
As the ovum approaches maturity the germinal vesicle assumes an excentric position, and fuses with the peripheral layer of the egg to constitute the cicatricular lens.
Ripe ovum of Asterias glacialis enveloped in a mucilaginous envelope, and containing an excentricgerminal vesicle and germinal spot (copied from Fol).
An attempt to make yellow colder produces a green tint and checks both the horizontal and excentric movement.
The four-way cock was worked by anexcentric on the shaft, moving a lever, which was kept in contact with the excentric by a spring.
F would still be a circle, excentric from Dd by DA the radius of the epicycle.
But there are no such means, except the position of the centre of the excentric at a given distance from the sun; and I have already said, that this is beyond the power of a mere mind.
This was consequently called the excentric theory, in opposition to the former or concentric one, and was received as a great improvement.
The Nucleus is usually excentric and is always serotinous, since it only divides at a comparatively late period into spore-nuclei.
They possess a distinct membrane and an excentric nucleus, and contain numerous yellow pigment-granules in the endoplasm.
The Calymma always contains a phaeodium or peculiar voluminous excentric mass of pigment.
The Nucleus is always excentric and generally precocious, since it divides early by a peculiar process of budding into numerous small nuclei.
Each tube is divided by a series of septa into chambers, which communicate by a central or excentric opening in each septum, an arrangement resembling the siphuncle of the chambered Cephalopod shells.
There are, moreover, included four other sets of circular spaces, excentric with respect to the first, each of these sets containing five spaces.
Valves dissimilar, the upper valve with an excentric axial area, the lower with an excentric raphe.
Valve with a hyaline excentric space from which proceed, usually in six directions, rows of polygonal markings decreasing toward the narrow, coarsely striated border, the rows appearing convex toward the centre.
Valve lanceolate, linear-lanceolate or rarely elliptical, with very excentric keel; not folded; keel puncta not extended.
Valve large, slightly arcuate, with excentric keel; no longitudinal folds; keel puncta somewhat extended over the valve but much less than in the group Insignes, and often scarcely perceptible.
Valves without costae; striae moniliform; upper valve with excentric pseudoraphe or median line; otherwise as in A.
Like Grunowia, but with sharper, somewhat excentric keel; transverse section of frustule quadrangular.
Valves linear-elliptical, rounded at the ends; upper valve with excentric pseudoraphe; striae moniliform, puncta smaller than in A.
Valve withexcentric keel and long, produced apices.
Like Sigmata, with a more or less excentric keel which has in the middle a small bending to the inside; middle keel puncta somewhat more distant than the others, and between them a central nodule evident.
It has been further suggested, that the description of myexcentric Bar Press was not sufficiently explicit.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "excentric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
