This website uses cookies to ensure you get the best experience. Learn more

rings

rings Sentence Examples

  • Every time the phone rings, we jump.

    14
    8
  • Sarah had pouted for a bit about not being able to wear her rings, but recovered quickly.

    4
    0
  • After several rings, it went to the message.

    3
    0
  • Sometimes the activity of the successive cambiums simply results in the formation of concentric rings or arcs of secondary xylem and phloem.

    2
    0
  • Janet was late again and Cynthia's bedside attempt to call her mother in Indiana resulted in unanswered rings, causing her further concern.

    1
    0
  • arvensis, is probably a variety of the pasture mushroom; it grows in rings in woody places and under trees and hedges in meadows; it has a large scaly round cap, and the flesh quickly changes to buff or brown when cut or broken; the stem too is hollow.

    1
    0
  • It grows in small rings, which give it the appearance of growing in tufts, though it is really closely and evenly distributed over the whole scalp. The figures of the men are muscular and well-formed and generally pleasing; a straight, well-formed nose and jaw are by no means rare, and the young men are often distinctly good-looking.

    1
    0
  • The centric hypothesis has been applied to these rings by Bamberger and others; but as in the previous rings considered, the ordinary (3) (4) (5) representation with double and single linkages generally represents the syntheses, decompositions, &c.; exceptions, however, are known where it is necessary to assume an oscillation of the double linkage.

    1
    1
  • The centric hypothesis has been applied to these rings by Bamberger and others; but as in the previous rings considered, the ordinary (3) (4) (5) representation with double and single linkages generally represents the syntheses, decompositions, &c.; exceptions, however, are known where it is necessary to assume an oscillation of the double linkage.

    1
    1
  • You take time to think about a date, but I want to take you out tomorrow to look at engagement rings.

    0
    0
  • Don't answer the phone when it rings.

    0
    0
  • I asked his permission, and he helped me pick out the rings.

    0
    0
  • "My heart's in my mouth ever time it rings," she said and added an apology as she moved to answer it, just as Cynthia Byrne entered the room.

    0
    0
  • I still hate it when the telephone rings.

    0
    0
  • It looked like a ring box, but they had already purchased the rings.

    0
    0
  • Hamburgers, hot dogs, onion rings, French fries - you know, the usual fast food stuff.

    0
    0
  • They were pale green with silver rings that seemed to liquefy and swirl as Xander watched.

    0
    0
  • While it was huge and red from the outside, the inside resembled a boxing gym with several rings, training equipment and a wall of mirrors.

    0
    0
  • In Rhabdopleura each zooid forms its own delicate tube composed of a characteristic series of distinct rings.

    0
    0
  • The parable of the three rings is the epitome of the pragmatic position.

    0
    0
  • In 1826 he described the prismatically-coloured films of metal, known as Nobili's' rings, deposited electrolytically from solutions of lead and other salts when the anode is a polished iron plate and the cathode is a fine wire placed vertically above it.

    0
    0
  • The latter names a disengaged junction circuit, then " tests " the line of the wanted subscriber, and if she finds it free, finally completes the connexion and rings the subscriber.

    0
    0
  • One, the " upper " or ex-umbral nervering, is derived from the ectoderm on the ex-umbral side of the velum; it is the larger of the two rings, containing more numerous but smaller ganglioncells, and innervates the tentacles.

    0
    0
  • External tympaniform membranes exist, with great variations, between the specialized one or two last tracheal and some of the first bronchial rings.

    0
    0
  • The essential feature is that the proximal end of the inner membranes is attached to the last pair of tracheal rings; outer tympaniform membranes exist generally between the 2nd, 3rd and 4th bronchial semi-rings.

    0
    0
  • The lower portion of the trachea consists of thin membranes, about half a dozen of the rings being very thin or deficient.

    0
    0
  • Omitting the paired tracheo-clavicular muscles, we restrict ourselves to the syringeal proper, those which extend between tracheal and bronchial rings.

    0
    0
  • - Syrinx muscles of either side attached to the dorsal and ventral corners of the rings.

    0
    0
  • We have thus grounds for believing that the original nebula will separate into a series of rings all revolving in the same direction with a central nebulous mass in the interior.

    0
    0
  • He obtained in 185 9 the Adams prize in Cambridge for a very original and powerful essay, " On the Stability of Saturn's Rings."

    0
    0
  • The expression has meanwhile changed: the face is pale or livid; there are dark rings under the eyes; the features are pinched and sharp, and the whole skin shrunken; the fingers are dead white, the nails blue.

    0
    0
  • The frame is crossed by four metal horizontal rods passing through holes large enough to allow them to rattle when the sistrum is shaken, the rods being prevented from slipping out altogether by little metal stops in the shape of a leaf; sometimes metal rings are threaded over the rods to increase the jingling.

    0
    0
  • The peristomium has no setae, and the setae generally are hair-like or uncinate, often forming almost complete rings.

    0
    0
  • When several rings or circles were combined representing the great circles of the heavens, the instrument became an armillary sphere.

    0
    0
  • Eratosthenes (276-196 B.C.) used most probably a solstitial armilla for measuring the obliquity of the ecliptic. Hipparchus (160-125 B.C.) probably used an armillary sphere of four rings.

    0
    0
  • They have a passion for fine clothes and ornaments, tricking themselves out with glass trinkets, rings and articles of ivory and horn.

    0
    0
  • is not large it is of considerable importance to stock-breeders, as it is a frequent occurrence for buyers for export-to Argentina, Australasia, Canada, the United States and elsewhere-to bid freely at the sale rings, and often to pay the highest prices, thus stimulating the sales and encouraging the breeding of the best types of native stock.

    0
    0
  • The park system consists of two concentric rings, the inner being the city system proper, the outer the metropolitan system undertaken by the commonwealth in co-operation with the city.

    0
    0
  • The concentric castle, with its rings of walls, began to displace the old keep and bailey with.

    0
    0
  • Let -I- B, - B, be two smaller trunnions which project out from the sides of the two strips connecting together a pair of rings CC. The rings and the connecting strips constitute the circuit which is to be rendered movable.

    0
    0
  • 5 the current is shown dividing round the two rings; but in all the balances, except those intended for the largest currents, the current really circulates first round one ring and then round the other.

    0
    0
  • The fragments indicate the great 'variety of subjects discussed: the origin of the appeal to the people (provocatio); the use of elephants in the circus games; the wearing of gold rings; the introduction of the olive tree; the material for making the toga; the cultivation of the soil; certain details as to the lives of Cicero and Terence.

    0
    0
  • (For views of interior and exterior, see Architecture.) for in the entrance gateway of the Lal Darwaza or Red Gate mosque at Jaunpur, where an arch (of two rings of ogee shape) is carried by a solid wall, built under it, which is pierced with three doorways with bracket-capitals and architraves, returning therefore to trabeated construction.

    0
    0
  • Carbocyclic rings will next be treated, benzene and its allies in some detail; and finally the heterocyclic nuclei.

    0
    0
  • Perkin, junr., in 1883, that ethylene and trimethylene bromides are capable of acting in such a way on sodium acetoacetic ester as to form triand tetramethylene rings.

    0
    0
  • Baeyer supposes that in the formation of carbon, rings " the valencies become deflected from their positions, and that the tension thus introduced may be deduced from a comparison of this angle with the angles at which the strained valencies would meet.

    0
    0
  • Similar considerations will apply to rings containing other elements besides carbon.

    0
    0
  • Other hydrocarbon nuclei generally classed as aromatic in character result from the union of two or more benzene nuclei joined by one or two valencies with polymethylene or oxidized polymethylene rings; instances of such nuclei are indene, hydrindene, fluorene, and fluoranthene.

    0
    0
  • Hitherto we have generally restricted ourselves to syntheses which result in the production of a true benzene ring; but there are many reactions by which reduced benzene rings are synthesized, and from the compounds so obtained true benzenoid compounds may be prepared.

    0
    0
  • Restricting ourselves to compounds resulting from the fusion of benzene rings, we have first to consider naphthalene, C10H8, which consists of two benzene rings having a pair of carbon atoms in common.

    0
    0
  • (7) (2) In the first symbol it is assumed that one of the affinities of each of the two central carbon atoms common to the two rings acts into both rings, an assumption involving a somewhat wide departure from all ordinary views as to the manner in which affinity acts.

    0
    0
  • This symbol harmonizes with the fact that the two rings are in complete sympathy, the one responding to every change made in the other.

    0
    0
  • Then, on account of the relatively slight - because divided - influence which would be exercised upon the two rings by the two affinities common to both, the remaining four centric affinities of each ring would presumably be less attracted into the ring than in the case of benzene; consequently they would be more active outwards, and combination would set in more readily.

    0
    0
  • The centric formula proposed by Bamberger represents naphthalene as formed by the fusion of two benzene rings, this indicates that it is a monocyclic composed of ten atoms of carbon.

    0
    0
  • benzenoid rings as represented by the symbols: - Anthracene Phenanthrene In both cases the medial ring is most readily attacked; and various formulae have been devised which are claimed by their authors to represent this and other facts.

    0
    0
  • For general purposes, however, the symbol (2), in which the lateral rings are benzenoid and the medial ring fatty, represents quite adequately the syntheses, decompositions, and behaviour of anthracene.

    0
    0
  • (7) (2) Phenanthrene is regarded by Armstrong as represented by (3), the lateral rings being benzenoid, and the medial ring fatty; Bamberger, however, regards it as (4), the molecule being (3) (4) entirely aromatic. An interesting observation by Baeyer, viz.

    0
    0
  • Fiveand six-membered rings are the most stable and important, the last-named group resulting from the polymerization of many substances; threeand four-membered rings are formed with difficulty, and are easily ruptured; rings containing seven or more members are generally unstable, and are relatively little known.

    0
    0
  • The elements which go to form heterocyclic rings, in addition to carbon, are oxygen, sulphur, selenium and nitrogen.

    0
    0
  • Similarly, two or more methine groups may be replaced by the same number of nitrogen atoms with the formation of rings of considerable stability.

    0
    0
  • Heterocyclic rings may be systematically surveyed from two aspects: (I) by arranging the rings with similar hetero-atoms according to the increasing number of carbon atoms, the so-called " homologous series "; or (2) by first dividing the ring systems according to the number of members constituting the ring, and then classifying these groups according to the nature of the hetero-atoms, the so-called " isologous series."

    0
    0
  • The second method possesses greater advantages, for rings of approximate stability come in one group, and, consequently, their derivatives may be expected to exhibit considerable analogies.

    0
    0
  • True ring systems, which possess the characters of organic nuclei, do not come into existence in threeand four-membered rings, their first appearance being in penta-atomic rings.

    0
    0
  • Obviously, isomeric ring-systems are possible, since the carbon atoms in the original rings are not all of equal value.

    0
    0
  • Thus furfurane yields the following rings by the introduction of one and two nitrogen atoms: CH=N N=CH..

    0
    0
  • One or two benzene nuclei may suffer condensation with the furfurane, thiophene and pyrrol rings, the common carbon atoms being vicinal to the hetero-atom.

    0
    0
  • Proceeding to the six-membered hetero-atomic rings, the benzo-, dibenzoand naphtho-derivatives are frequently of great commercial and scientific importance.

    0
    0
  • Chemie, 24, p. 468) submitted the view that fluorescence was due to the presence of certain " fluorophore " groups; such groupings are the pyrone ring and its congeners, the central rings in anthracene and acridine derivatives, and the paradiazine ring in safranines.

    0
    0
  • The proboscis bears rings of recurved hooks arranged in horizontal rows, and it is by means of these hooks that the animal attaches itself to the tissues of its host.

    0
    0
  • The crook is usually richly ornamented, and is divided from the shaft by a boss; the shaft is commonly separated into sections by rings, so that it can be taken to pieces.

    0
    0
  • It was lined within and without with gold, and through four golden rings were placed staves of acacia wood, by means of which it was carried.

    0
    0
  • Sheets of mica very often show coloured rings and bands (Newton's rings), due to the interference of light at the surfaces of internal cleavage cracks.

    0
    0
  • Trans., 1885, 176, 455) introduced a modification of the usual ballistic arrangement which presents the following advantages: (I) very considerable magnetizing forces can be applied with ordinary means; (2) the samples to be tested, having the form of cylindrical bars, are more easily prepared than rings or wires; (3) the actual induction at any time can be measured, and not only changes of induction.

    0
    0
  • In order to meet the objection that the phenomenon might be due to electromagnetic action between the coil and the rod, Bidwell made some experiments with iron rings, and found that the length of their diameters varied under magnetization in precisely the same manner as the length of a straight rod.

    0
    0
  • magnetization upon the dimensions of iron rings in directions perpendicular to the magnetization, and upon the volume of the rings.

    0
    0
  • Experiments on the effect of external hydrostatic pressure upon the magnetization of iron rings have also been made by F.

    0
    0
  • After one of the rings had been annealed at 840°, its maximum permeability at ordinary temperatures was 4000 for H =1.84; when it had been subsequently annealed at 1150°, the maximum permeability rose to 4680 for H =1.48, while the hysteresis loss for 2 B = t 4000 was under 500 ergs per c.cm.

    0
    0
  • It may be remarked that, whereas Fleming and Dewar employed the ballistic method, their specimens having the form of rings, Honda and Shimizu worked magnetometrically with metals shaped as ovoids.

    0
    0
  • 910-915) by the Roman poet, Lucretius (96-5555 B.C.), in which it is stated that the stone can support a chain of little rings, each adhering to the one above it, indicates that in his time the phenomenon of magnetization by induction had also been observed.

    0
    0
  • Among his other papers may be mentioned those dealing with the formation of fairy rings (1807), a synoptic scale of chemical equivalents (1814), sounds inaudible to ordinary ears (1820), the physiology of vision (1824), the apparent direction of the eyes in a portrait (1824) and the comparison of the light of the sun with that of the moon and fixed stars (1829).

    0
    0
  • It may be added that he first examined the conditions of stability of the system formed by Saturn's rings, pointed out the necessity for their rotation, and fixed for it a period (Io h 33 m) virtually identical with that established by the observations of Herschel; that he detected the existence in the solar system of an invariable plane such that the sum of the products of the planetary masses by the projections upon it of the areas described by their radii vectores in a given time is a maximum; and made notable advances in the theory of astronomical refraction (Mec. cel.

    0
    0
  • We imagine a wave-front divided o x Q into elementary rings or zones - often named after Huygens, but better after Fresnelby spheres described round P (the point at which the aggregate effect is to be estimated), the first sphere, touching the plane at 0, with a radius equal to PO, and the succeeding spheres with radii increasing at each step by IX.

    0
    0
  • the rings are at first of nearly equal area.

    0
    0
  • Let us conceive the zone in question to be divided into infinitesimal rings of equal area.

    0
    0
  • The effects due to each of these rings are equal in amplitude and of phase ranging uniformly over half a complete period.

    0
    0
  • We may usually suppose that a large number of the outer rings are incomplete, so that the integrated term at the upper limit may properly be taken to vanish.

    0
    0
  • The subsequent revivals of brightness forming the bright rings are necessarily of inferior brilliancy as compared with the central disk.

    0
    0
  • It has been found by Sir William Herschel and others that the definition of a telescope is often improved by stopping off a part of the central area of the object-glass; but the advantage to be obtained in this way is in no case great, and anything like a reduction of the aperture to a narrow annulus is attended by a development of the external luminous rings sufficient to outweigh any improvement due to the diminished diameter of the central area.'

    0
    0
  • For the dark rings Ji(z) =o; so that the fraction of illumination outside any dark ring is simply Jo 2 (z).

    0
    0
  • Thus for the first, second, third and fourth dark rings we get respectively 161, 090, 062, 047, showing that more than T 9 -,- the of the whole light is concentrated within the area of the second dark ring (Phil.

    0
    0
  • " Thus the magnitude of the central spot is diminished, and the brightness of the rings increased, by covering the central parts of the object-glass."

    0
    0
  • Hence, whatever else may happen, there must be a system of dark rings formed, the same as from a single small aperture.

    0
    0
  • In his experiments upon this subject Fraunhofer employed plates of glass dusted over with lycopodium, or studded with small metallic disks of uniform size; and he found that the diameters of the rings were proportional to the length of the waves and inversely as the diameter of the disks.

    0
    0
  • In another respect the observations of Fraunhofer appear at first sight to be in disaccord with theory; for his measures of the diameters of the red rings, visible when white light was employed, correspond with the law applicable to dark rings, and not to the different law applicable to the luminous maxima.

    0
    0
  • Verdet has, however, pointed out that the observation in this form is essentially different from that in which homogeneous red light is employed, and that the position of the red rings would correspond to the absence of blue-green light rather than to the greatest abundance of red light.

    0
    0
  • Potgieter and some companions followed the trail of Trichard's party as far as the Zoutpansberg, where they were shown gold workings by the natives and saw rings of gold made by native workmen.

    0
    0
  • RAINBOW, formerly known as the iris, the coloured rings seen in the heavens when the light from the sun or moon shines on falling rain; on a smaller scale they may be observed when sunshine falls on the spray of a waterfall or fountain.

    0
    0
  • The " Passglas," another popular drinking-glass, is cylindrical in form and marked with horizontal rings of glass, placed at regular intervals, to indicate the quantity of liquor to be taken at a draught.

    0
    0
  • It is Venetian in character, of a brownish tint, with two white enamel rings round the body.

    0
    0
  • When fighting was a part of the Sikh's duty, long hair and iron rings concealed in it protected his head from sword cuts.

    0
    0
  • The analytical treatment of such vortex rings is the same as for the electro-magnetic effect of a current circulating in each ring.

    0
    0
  • In one scene the king stands in his chariot with a curved weapon in his right hand formed of three bars of metal bound together by rings (similar, as M.

    0
    0
  • The present cone is the third, portions of two concentric crater rings remaining.

    0
    0
  • Spears, battle-axes, collars, rings, amulets, medals of gold, ornaments of silver, jet and amber, &c., have also been found in various places.

    0
    0
  • Tortrix scytale, one of the "coral-snakes" of tropical South America, is beautiful coral-red with black rings, grows to nearly a yard in length, and is said sometimes to be worn as a necklace by native ladies.

    0
    0
  • Three of the species have the body ornamented with black rings, but the fourth and most common (B.

    0
    0
  • The majority are distinguished by the beautiful arrangement of their bright and highly ornamental colours; many species of Elaps have the pattern of the so-called coral-snakes, their body being encircled by black, red and yellow rings - a pattern FIG.

    0
    0
  • These are especially conspicuous in two rings (After Hartog, from Cambridge Natural History, vol.

    0
    0
  • Buchanan, which has an arbitrary scale and can be varied in weight by placing small metal rings on the stem so as to depress the scale to any desired depth in sea-water of any salinity, the specific gravity being calculated for each reading by dividing the total weight by the immersed volume; (3) the total immersion areometer, which has no scale and the weight of which can be adjusted so that the instrument can be brought so exactly to the specific gravity of the water sample that it remains immersed, neither floating nor sinking; this has the advantage of 'eliminating the effects of surface tension and in Fridtjof Nansen's pattern is capable of great precision.

    0
    0
  • The most complete and symmetrical grass rings are formed by Marasmius oreades, the fairy ring champignon, but the mushroom and many other species occasionally form rings, both on grass-lands and in woods.

    0
    0
  • Of these methods one of the chief is the plan of tubbing, or lining the excavation with an impermeable casing of wood or iron, generally the latter, built up in segments forming rings, which are piled upon each other throughout the whole depth of the water-bearing strata.

    0
    0
  • In the north of France and Belgium wooden tubbings, built of polygonal rings, were at one time in general use.

    0
    0
  • The water-tight lining may be either a wrought iron tube, which is pressed down by jack screws as the borehole advances, or cast iron tubbing put together in short complete rings, in contradistinction to the old plan of building them up of segments.

    0
    0
  • With increase in depth, however, the thickness and weight of the cast iron tubbing in a large shaft become almost unmanageable; in one instance, at a depth of 1215 f t., the bottom rings in a shaft 142 ft.

    0
    0
  • For shaft linings steel rings of H or channel section supported by intermediate struts are also used, and cross-bearers or buntons of steel joists and rail guides are now generally substituted for wood.

    0
    0
  • This weapon embodied all the essential features which distinguish the ordnance of to-day from the cannon of the middle ages - it was built up of rings of metal shrunk upon an inner steel barrel; it was loaded at the breech; it was rifled; and it threw, not a round ball, but an elongated projectile with ogival head.

    0
    0
  • The archaeologist recovers his specimens from waste places, cave deposits, abandoned villages, caches, shell-heaps, refuse-heaps, enclosures, mounds, hut rings, earthworks, garden beds, quarries� and workshops, petroglyphs, trails, graves and cemeteries, cliff and cavate dwellings, ancient pueblos, ruined stone dwellings, forts and temples, canals or reservoirs.

    0
    0
  • Except in the bongo and elands, horns are present only in the males, and these are angulated and generally spirally twisted, and without rings.

    0
    0
  • The earliest metallic money did not consist of coins, but of unminted metal in the form of rings and other ornaments or of weapons, which were used for thousands of years by the Egyptian, Chaldean and Assyrian Empires.

    0
    0
  • Beneath the lower or fixed plate are four metallic rings furnished with holes corresponding to those in the plates, and which may be pushed round by projecting pins, so as to admit the air-current through any one or more of the series of perforations in the fixed plate.

    0
    0
  • and movable perforate plates and perforated rings, both the movable plates being driven by the same current and revolving about a common axis.

    0
    0
  • If small paper rings are put on a monochord wire they rotate through these vibrations when the wire is bowed.

    0
    0
  • 39, middle and rubbing it lengthwise FIG with a bit of cloth powdered with resin, till the rod gives a distinct note; the vibrations are communicated to the plate, which consequently vibrates transversely, and causes the sand to heap itself into one or more concentric rings.

    0
    0
  • It has yielded four bronze swords, ten socketed spear-heads, forty celts or axe-heads and sickles, fifty knives, twenty socketed chisels, four hammers and an anvil, sixty rings for the arms and legs, several highly ornate torques or twisted neck rings, and upwards of two hundred hair pins of various sizes up to 16 in.

    0
    0
  • The bridge is not continuous in width, there are arch rings on each face, each 16.4 ft.

    0
    0
  • One centering was used for the two arch rings, supported on dwarf walls which formed a slipway, along which it was moved after the first arch was built.

    0
    0
  • The axis has eight bearings, consisting of rings of live rollers 4 i 7 zin.

    0
    0
  • Some curious memorials of the superstition have survived in rings and amulets, engraven with the various signs, and worn as a kind of astral defensive armour.

    0
    0
  • It is black, with tawny rings round the eyes, and white cheeks, throat and chest.

    0
    0
  • We might thus examine a structure formed of an aggregation of very thin vortex rings, which would move across the fluid without sensibly disturbing it; on the other hand, if formed of stronger vortices, it may transport the portion of the fluid that is within, or adjacent to, its own structure along with it as if it were a solid mass, and therefore also push aside the surrounding fluid as it passes.

    0
    0
  • It is true that the theory of vortex rings in hydrodynamics is of a simpler type; but electric currents cannot be likened to permanent vortex rings, because their circuits can be broken and the element of cyclic steadiness on which the simplicity depends is thereby destroyed.

    0
    0
  • The apparatus described in the patent specification is an iron cylinder heated by gas rings below, with a narrower cylinder beneath, through which passes upwards a stout iron cathode rod cemented in place by caustic soda solidified in the narrower vessel.

    0
    0
  • 29-35), shows that the Nethinim were in charge of the rings and hooks connected with the temple service; they sheared the sheep offered for sacrifice in the temple and poured the libations.

    0
    0
  • It was a very richly decorated object of coloured threads interwoven with gold, worn outside the luxurious mantle or robe; it was kept in place by a girdle, and by shoulder-pieces (?), to which were attached brooches of onyx (fastened to the robe) and golden rings from which hung the "breastplate" (or rather pouch) containing the sacred lots, Urim and Thummim.

    0
    0
  • Dr Lewis Mott has pointed out that "Round Tables" exist in many parts of Great Britain, the name being often associated with circular trenches, or rings of stones, which were demonstrably employed in connexion with the agricultural festivals held at Pentecost, Midsummer and Michaelmas.

    0
    0
  • The animal, which reaches a length of more than 2 ft., is blackish-brown and yellow or orange, and on the thick tail these "warning colours" are arranged in alternate rings.

    0
    0
  • - The body is covered with soft skin, forming numerous rings with mere vestiges of scales.

    0
    0
  • Hultsch refers to Egyptian gold rings of Dynasty XVIII of 125 grains.

    0
    0
  • In Syria haematite weights are found (30) averaging 198.5, divided into 99.2, 49.6 and 24.8; and the same division is shown by gold rings from Egypt (38) of 24.9.

    0
    0
  • The upper side of the tail is buff, spotted with broken rings like the back, its under surface white with simple spots.

    0
    0
  • Correlated with the well-developed muscular system and sense-organs of the medusa, we find also a distinct nervous system, either, when there is no velum, in the form of concentrations of nervous matter in the vicinity of each sense-organ, or, when a velum is present, as two continuous rings running round the margin of the umbrella, one external to the velum (exumbral nerve-ring, n.r l, see fig.

    0
    0
  • Now familiarly known as "wheel 'animalcules," from the wheel-like motion produced by the rings of cilia which generally occur in the head region, the so-called rotatory organs, they were first discovered by A.

    0
    0
  • Often the head is retractile, and a constriction of flexible cuticle distal to it is termed a neck: in Philodinaceae there are a series of thin flexible rings which permit both distal and proximal ends to be telescoped into the middle; and in Taphrocampa, regular constrictions of the whole bodywall give an appearance of metemeric segmentation to the body.

    0
    0
  • A discussion of the equilibrium of Saturn's rings led him to conclude in 1855 that they must be of a fluid nature.

    0
    0
  • The upper part of the head and sides of the face are thickly marked with small black spots, and the rest of body is covered with rosettes, formed of rings of black spots, with a black spot in the centre, and ranged lengthwise along the body in five to seven rows on each side.

    0
    0
  • These black rings are heaviest along the back.

    0
    0
  • A few years ago a full-sized tree was felled in Fresno county, California, and contiguous transverse sections have been set up, one in the Museum of Natural History at New York, the other (upper one) in the British Museum of Natural History at South Kensington; the annual rings of the latter section have been carefully counted and found to indicate an age of 1335 years.

    0
    0
  • The weir is opened by joining the needles of each bay by a chain passed through the eyes at the top and a line of wire through the central rings, so that when released at the top by the tilting of the escape bar by the derrick, they float down as a raft, and are caught by a man in a boat, or, when the cur rent is strong, they are 'mopes ?o drawn to the bank by a rope attached to them previously to their release.

    0
    0
  • A more unpleasant side to the question is that he gave the king a safe conduct, which was afterwards seen by Sir Donald Stewart, before he left the palace, and presumably for a bribe; and he took an armlet and rings from the bodies of the princes.

    0
    0
  • The best kind of charcoal is that of close-grained pine or alder; it is cut in short prisms, having a flat smooth surface at right angles to the rings of growth.

    0
    0
  • Amulets, seals, talismans, relics, ear or nose rings stamped with divine emblems or otherwise hallowed, communicate their holiness to the wearers and protect from the Adversary.

    0
    0
  • The dome walls arise in a series of richly tinted rings, each 8 or io ft.

    0
    0
  • Among other ornaments we may mention hairpins, rings and ear-rings, and especially buckles which are often of elaborate workmanship. Bracelets and necklets are not very common, a fact which is rather surprising, as in early times, before the issuing of a coinage, these articles (beagas) took the place of money to a large extent.

    0
    0
  • The gimbals or rings for suspension hinged at right-angles to one another, have been erroneously attributed to Cardan, the proper term being cardine, that is hinged or pivoted.

    0
    0
  • In addition to a large number of publications in the Proceedings of the Royal Society and the Philosophical Magazine, he has published A Treatise on the Motion of Vortex Rings (1884); The Application of Dynamics to Physics and Chemistry (1886); Recent Researches in Electricity and Magnetism (1892); Elements of the Mathematical Theory of Electricity and Magnetism (18 95, 5th ed.

    0
    0
  • 1442), "A new yeare's guifte, or a posie made upon certen flowers," &c. "Posy rings," plain or engraved gold rings with a "posy" inscribed on the inside of the hoops, were very frequently in use as betrothal rings from the 16th to the 18th centuries.

    0
    0
  • There are several rings of this kind in the British Museum.

    0
    0
  • An adept will know by the ring of the pot on striking it with his knuckles whether water is wanted or not, according as it rings loud and clear or dull and heavy.

    0
    0
  • Very durable trellises for greenhouse climbers are made of slender round iron rods for standards, having a series of hooks on the inner edge, into which rings of similar metal are dropped; the rings may be graduated so as to form a broad open top, or may be all of the same size, when the trellis will assume the cylindrical form.

    0
    0
  • Uredospores, septa of Basidiomycetes), spirals, reticulations, rings, &c. (capillitium fibres of Podaxon, Calostoma, Battarrea), occur as in the vessels of higher plants, while sculptured networks, pittings and so forth are as common on fungus-spores as they are on pollen grains.

    0
    0
  • The underground mycelium in many cases spreads wider and wider each year, often in a circular manner, and the sporophores springing from it appear in the form of a ring - the so called fairy rings.

    0
    0
  • Cheetah.-Size of a small leopard and similar in colour, but has black spots in lieu of rings.

    0
    0
  • Leopards have rings only and cheetahs solid spots.

    0
    0
  • The very finest skins are chiefly used for stoles and muffs, and the general run for coachmen's capes and carriage rugs, which are very handsome when the tails, which are marked with rings of dark and light fur alternately, are left on.

    0
    0
  • Lorenz and others have employed similar methods, depending on the observation of the rate of change of temperature at certain points of bars, rings, cylinders, cubes or spheres.

    0
    0
  • The coat is long and soft, pale silvery grey or light buff in hue, marked with black on the chest and upper parts of the limbs, with transverse stripes on the loins and rings on the tail of the same hue.

    0
    0
  • The ornaments are beads, earrings, brooches, rings, bracelets, &c., thickly studded with precious stones.

    0
    0
  • A chalcedonic deposit in the form of concentric rings, on fossils and fragments of limestone in S.

    0
    0
  • When the place was a hamlet of rude huts it was called Arcioldun or "Prospect Fort," with reference to Black Hill (1003 ft.), on the top of which may yet be traced the concentric rings of the British fort by which it was crowned.

    0
    0
  • Rings of metal, gold, silver and bronze played some part in exchange, and from the Hyksos period onwards formed the usual standards by which articles of all kinds might be valued.

    0
    0
  • The reins were passed through rings attached to the collar bands or yoke, and were long enough to be tied round the waist of the charioteer in case of his having to defend himself.

    0
    0
  • Owing to differences in the character of the elements produced at the beginning and end of the season, the wood is marked out in transverse section into concentric rings, one for each season of growth - the so-called annual rings.

    0
    0
  • The fur has, however, a tawny yellow or reddishgrey ground colour, marked with black spots, aggregated in streaks and blotches, or in elongated rings enclosing areas rather darker than the general ground-colour.

    0
    0
  • The animals thus associated, the Rotifera, Chaetopoda and Arthropoda, are composed of a larger or smaller number of hollow rings, each ring possessing typically a pair of hollow lateral appendages, moved by intrinsic muscles and penetrated by blood-spaces.

    0
    0
  • This consisted of bronze swords and vases, gold jewellery with agate and other gems, bracelets, collars, a seal cylinder and two engraved gold rings, one of which, the largest known, bears a religious scene.

    0
    0
  • The coat is remarkable for its density and compactness; the general colour of the head and upper parts being clove-brown, with more or less white or whitish grey on the under parts and inner surfaces of the limbs, while there is also some white above the hoofs and on the muzzle, and there may be whitish rings round the eyes; there is a white area in the region of the tail, which includes the sides but not the upper surface of the latter; and the tarsal tuft is generally white.

    0
    0
  • A transverse section of a tree of this class shows it to consist of three distinct parts: the pith or medulla, the wood, made up of annual rings or layers, and the bark.

    0
    0
  • The pith is in the centre of the tree and around it the wood is disposed in approximately concentric rings; that part near the pith is hard and close in grain, and from its position is termed heart-wood.

    0
    0
  • The sap-wood is made up of the outer layers or rings, and these are softer than the heart and generally of more open grain.

    0
    0
  • should be converted economical method, but, as will be seen in the diagram, the quality of the boards will vary very much, some consisting almost entirely of sap-wood cut at a tangent to the annular rings such as a, b, c, whilst the centre boards contain the heartwood cut in the best way at right angles across the annual rings as d, e, f.

    0
    0
  • Deals with coarse annual rings (i.e.

    0
    0
  • The wide annual rings show that the tree was grown too quickly, probably in marshy ground.

    0
    0
  • "Cup shake" is a natural splitting in the interior of the tree between two of the annular rings.

    0
    0
  • The annual rings are well defined, each ring consisting of a hard and a soft portion, respectively dark and light in colour.

    0
    0
  • The colour of the cut wood is a very light yellowish or brownish white, the hard parts of the annual rings being of a darker shade.

    0
    0
  • The wood is a light yellowish brown in colour, fine in grain and of even texture, the annular rings being marked by a darker line.

    0
    0
  • ft.; it has a straight grain free from many knots; in colour it is of a rather deep yellow or brownish tint, with the hard portions of the annular rings marked in a darker red.

    0
    0
  • The wood is very hard, tough, with fine regular grain and close texture, the annular rings being distinct and the medullary rays well marked.

    0
    0
  • Its colour is light brown, sometimes with a greenish tint, with the annular rings of darker colour.

    0
    0
  • The wood is light brown or yellowish white, with annular rings not very distinct, often cross-grained and of uniformly coarse texture.

    0
    0
  • Under favourable conditions four concentric rings may be seen round the shadow of the observer's head, the outermost, which seldom appears, having an angular radius of 40°.

    0
    0
  • In physical science, coronae (or "glories") are the coloured rings frequently seen closely encircling the sun or moon.

    0
    0
  • It has now been firmly established, both experimentally and mathematically, that coronae are due to diffraction by the minute particles of moisture and dust suspended in the atmosphere, and the radii of the rings depend on the size of the diffracting particles.

    0
    0
  • The chromatic rings seen encircling the "spectre of the Brocken" are similarly explained.

    0
    0
  • The Akalis also wear large flat iron rings round the neck and arms (Plate II.

    0
    0
  • Subsequent photographs showed that this nebula, which consisted mainly of two incomplete rings of nebulosity, was expanding outwards at the rate of from 2" to 3" per day.

    0
    0
  • Friction of Pivots and Collars.When a shaft is acted upon b a force tending toshift it lengthways, that force must be balanced by the reaction of a bearing against a pivot at the end of the shaft; or, if that be impossible, against one or more collars, or rings projecting from the body of the shaft.

    0
    0
  • Several interesting gold rings of Saxon workmanship have been found at different times, on which the owner's name and ornamental patterns are formed in gold with a background of niello.

    0
    0
  • Traquair in 1890, in allusion to its well-developed vertebral rings; and its structure was studied in detail in 1903 by Professor and Miss Sollas, who succeeded in making enlarged models of the fossil in wax.

    0
    0
  • The vertebral axis shows a series of broad rings, with distinct neural arches, but no ribs.

    0
    0
  • From the astronomers the Stoics borrowed their picture of the universe - a plenum in the form of a series of layers or concentric rings, first the elements, then the planetary and stellar spheres, massed round the earth as centre - a picture which dominated the imagination of men from the days of Eudoxus down to those of Dante or even Copernicus.

    0
    0
  • He then, by means of rings of iron-wire, disks and other contrivances, altered the form of certain parts of the,surface of the oil.

    0
    0
  • In the later centuries also, particularly in the 14th century, they were set in seal matrices and finger rings.

    0
    0
  • In these medusae, however, the central nervous system does not form continuous rings, but occurs as four or eight separate con centrations at the margin of the umbrella, centred each round one of the sense-organs (tentaculocysts).

    0
    0
  • In its simplest form the exoskeleton of a typical somite is a ring of chitin defined from the rings in front and behind by areas of thinner integument forming moveable joints, and having a pair of appendages articulated to its ventral surface on either side of the middle line.

    0
    0
  • The velum is peculiar, being reflected backwards over the body and bearing, besides an apical tuft, three or four rings of cilia.

    0
    0
  • Laplace's mathematical theory of the form of Saturn's rings.

    0
    0
  • Of the approximate size of an English mastiff, this powerful baboon is blackish grey in colour with a tinge of green due to the yellow rings on most of the hairs.

    0
    0
  • Silver rings on fingers and also on toes are common.

    0
    0
  • Owen to the typical representative of a group of gigantic, armadillo-like, South American, extinct Edentata, characterized by having the carapace composed of a solid piece (formed by the union of a multitude of bony dermal plates) without any movable rings.

    0
    0
  • In Glyptodon (with which Schistopleurum is identical) the tailsheath consists of a series of coronet-like rings, gradually diminishing in diameter from base to tip. Daedicurus, in which the tailsheath is in the form of a huge solid club, is the largest member of the family; in Panochthus and Sclerocalyptus (Hoplophorus) the tail-sheath consists basally of a small number of smooth rings, and terminally of a tube.

    0
    0
  • mark a cessation of growth in the Diagrammatic transverse more internal meristematic rings.

    0
    0
  • rings; these are characterized by an ph, Phloem.

    0
    0
  • The annual rings in a root are often less clearly marked than in the stem, and the xylem-elements are frequently larger and thinner.

    0
    0
  • In the Araucarian type of wood (Araucaria and Agathis) the bordered pits, which occur in two or three rows on the radial walls of the tracheids, are in mutual contact and polygonal in shape, the pits of the different rows are alternate and not on the same level; in this type of wood the annual rings are often much less distinct than in Cupressus, Pinus and other genera.

    0
    0
  • of the cast-iron cylinders forming the well was provided with about 660 small orifices lined with gun-metal tubes or rings, each armed with numerous thicknesses of copper wire gauze, and temporarily closed with screwed plugs.

    0
    0
  • It attains a length of 6 ft., weighing then perhaps 30 lb, and is of a greenish colour, occasionally mixed with brown, while the tail is surrounded with alternate rings of those colours.

    0
    0
  • Before the latter plates arose, the stem had developed by the elongation and constriction of the fixed end of the theca, the gradual regularization of the plates involved, and their coalescence into rings.

    0
    0
  • It was covered with copper, was provided with "horns" at the corners (like those of Assyria), hollow in the middle, and with rings on the sides into which the staves for its transportation could be run (Ex.

    0
    0
  • The watchword rings through all the New Testament- " the Lord is at hand."

    0
    0
  • Inquiry still takes this shape, and when any part of Disraeli's career is studied, the laces and essences, the rings over gloves, the jewelled satin shirt-fronts, the guitareries and chibouqueries of his early days are never remote from memory.

    0
    0
  • We do not find in Chaetopoda that parapodia, belonging to primitively post-oral rings or body-segments (called " somites," as proposed by H.

    0
    0
  • The body of the Arthropoda is more or less clearly divided into a series of rings, segments, or somites which can be shown to be repetitions one of another, possessing identical parts and organs which may be larger or smaller, modified in shape or altogether suppressed in one somite as compared with another.

    0
    0
  • They are a fine warlike race, with remarkably clear complexions and handsome features; round wrists and ankles they wear rings of twisted hair.

    0
    0
  • Humped cattle are widely spread over Africa, Madagascar and India, and form a distinct species, Bos indicus, characterized by the presence of a fleshy hump on the shoulders, the convexity (instead of concavity) of the first part of the curve of the horns, the very large size of the dewlap, and the general presence of white rings round the fetlocks, and light circles surrounding the eyes.

    0
    0
  • In the red coati, ranging from Surinam to Paraguay, the tail is marked with from seven to nine broad fulvous or rufous rings, alternating with black ones, and tipped with black.

    0
    0
  • The Slieve Bloom Mountains are thus formed of a dome of Old Red Sandstone folded on a core of unconformable Silurian strata; while in several cases the domes are worn through, leaving rings of Old Red Sandstone hills, scarping inwards towards broad exposures of Silurian shales.

    0
    0
  • In Biot's earlier experiments the beam of light employed was nearly parallel: the phenomena of rings and brushes that are seen with a conical pencil of light were discovered by Sir David Brewster in the case of uniaxal crystals in 1813 and in that of biaxal crystals in 1815.

    0
    0
  • When light from an extended source is made to converge upon the crystal, the phenomenon of rings and brushes localized at infinity is obtained.The exact calculation of the intensity in this case is very complicated and the resulting expression is too unwieldy to be of any use, but as an approximation the formula for the case of a parallel beam may be employed, the quantities and p therein occurring being regarded as functions of the angle and plane of incidence and consequently as variables.

    0
    0
  • With a crossed polarizer and analyser the rings are interrupted by a dark hyperbolic brush that cuts the plane of the optic axes at right angles, if this plane be at 45° to the planes of polarization and analysation - the so-called diagonal position - and that becomes a rectangular cross with its arms parallel and perpendicular to the plane of the optic axes when this plane coincides with the plane of primitive or final polarization - the normal position.

    0
    0
  • When white light is employed coloured rings are obtained, provided the relative retardation of the interfering streams be not too great.

    0
    0
  • When the rings are coloured symmetrically with respect to two perpendicular lines the acute bisectrix and the plane of the optic axes are the same for all frequencies, and the colour for which the separation of the axes is the least is that on the concave side of the summit of the hyperbolic brushes.

    0
    0
  • Thus in the two cases described above the brushes disappear and the rings are continuous when the light is both polarized and analysed circularly.

    0
    0
  • Then with an uniaxal plate perpendicular to the optic axis, the black cross is replaced by two lines, on crossing which the rings are discontinuous, expansion or contraction occurring in the quadrants that contain the axis of the quarter-wave plate, according as the crystal is positive or negative.

    0
    0
  • With a biaxal plate perpendicular to the optic axis in the diagonal position, the hyperbolic brush becomes an hyperbolic line and the rings are expanded or contracted on its concave side, with a positive plate, according as the plane of the optic axes is parallel or perpendicular to the axis of the quarter-wave plate, the reverse being the case with a negative plate.

    0
    0
  • Again, a system of rings, similar to those of an uniaxal plate perpendicular to the axis, may be produced with a glass cylinder by transmitting heat from its surface to its axes by immersion in heated oil, and glass that has been raised to a red heat and then cooled rapidly at its edges gives in polarized light an interference pattern of a regular form dependent upon the shape of the contour.

    0
    0
  • When the polarizer and analyser are parallel or crossed, the pattern is the same as with inactive plates, with the exception that the brushes do not extend to the centre of the field; but as the analyser is rotated a small cross begins to appear at the centre of the field, while the rings change their form and become nearly squares with rounded corners, when the planes of polarization and analysation are at 45°.

    0
    0
  • For the observation and measurement of rings in crystals polariscopes are constructed on the following principle.

    0
    0
  • They possess two main rings of projecting tissue, and their extremities bear papillae irregularly arranged.

    0
    0
  • It is marked by a number of rings of papillae placed transversely to its long axis, the dorsal of which are pigmented like the dorsal surface of the body, and the ventral like the ventral surface.

    0
    0
  • two adjacent sharp images are formed, which become indistinct if they coincide, or one pencil produces a distinct, the other an indistinct image, or that the images are surrounded with coloured rings.

    0
    0
  • 11) mentions the dove, fish, ship, lyre, anchor, as suitable devices for Christian signet rings.

    0
    0
  • These appear first in the form of cellular rings at the base of the nucellus, which gradually spread over its surface (figs.

    0
    0
  • These cages or boxes are either constructed of metal staves held together by a number of steel rings, or consist of one cylinder having a large number of perforations.

    0
    0
  • The concentric rings of growth, which form a characteristic feature, are due to periodic variations in the size of the larger tubes.

    0
    0
  • Ortoni (Penhallow), from the Devonian of Canada, the tubes are quite uniform, and there are no spaces or concentric rings.

    0
    0
  • Lessonia) in the dimensions of the stem and its concentric rings of growth.

    0
    0
  • So Sigurd, assuming Gunnar's shape, rode through the flames on his magic horse, and in sign of troth exchanged rings with the Valkyrie, giving her the ring of Andvari.

    0
    0
  • The hypothesis of the original nebular condition of the system, with the consequent explanation of the great phenomena of planetary formations and movements of the satellites and rings, is unquestionably to be assigned to Kant.

    0
    0
  • After several rings, it went to the message.

    0
    0
  • You take time to think about a date, but I want to take you out tomorrow to look at engagement rings.

    0
    0
  • Every time the phone rings, we jump.

    0
    0
  • Janet was late again and Cynthia's bedside attempt to call her mother in Indiana resulted in unanswered rings, causing her further concern.

    0
    0
  • Don't answer the phone when it rings.

    0
    0
  • He had even gone to check out rings last week and then she drops that word… A vampire!

    0
    0
  • I asked his permission, and he helped me pick out the rings.

    0
    0
  • Sarah had pouted for a bit about not being able to wear her rings, but recovered quickly.

    0
    0
  • "My heart's in my mouth ever time it rings," she said and added an apology as she moved to answer it, just as Cynthia Byrne entered the room.

    0
    0
  • I still hate it when the telephone rings.

    0
    0
  • It looked like a ring box, but they had already purchased the rings.

    0
    0
  • Hamburgers, hot dogs, onion rings, French fries - you know, the usual fast food stuff.

    0
    0
  • They were pale green with silver rings that seemed to liquefy and swirl as Xander watched.

    0
    0
  • While it was huge and red from the outside, the inside resembled a boxing gym with several rings, training equipment and a wall of mirrors.

    0
    0
  • We visit Carrowmore, the most extensive megalithic complex in Ireland, containing dolmens, ring forts and fairy rings.

    0
    0
  • Wedding rings for men were not common until recently.

    0
    0
  • Early blight shows as distinctive dark brown spots, somewhat angular, with concentric rings and bounded by the leaf veins.

    0
    0
  • annual ringowth rings form an angle less than 45 degrees.

    0
    0
  • Spread over 15 different appellations, his range positively rings with great Burgundian names!

    0
    0
  • Timber chocking next ensured a close and continuous support for the remaining masonry arch rings.

    0
    0
  • You shall put the poles into the rings on the sides of the ark, to carry the ark with them.

    0
    0
  • eating artichokes in black leather gloves festooned with rings isn't my idea of fun.

    0
    0
  • Three rings surround the central aureole of this lunar corona imaged by Lauri Kangas (site) on 31st January 2004.

    0
    0
  • bindPrivate of the Light Infantry Company; his cap is leather bound with three rings of iron chain.

    0
    0
  • bling ' culture and men having three or four big rings.

    0
    0
  • bra straps, sleeves, watches, rings or heavy shoulder bags.

    0
    0
  • bracelet s, to rings, pendants and earrings, inspired by current fashion and trends.

    0
    0
  • bulldog types may even go to dog-fighting rings.

    0
    0
  • Starter kit includes special tungsten carbide tipped router cutter, template and three spacer rings.

    0
    0
  • cartilaginous rings of bovine trachea (the windpipe in cattle ).

    0
    0
  • chow bell rings such properties has.

    0
    0
  • chow bell rings we've got to.

    0
    0
  • The owl is shown on its rock rising from a gold circlet charged with the three red rings from the Shield.

    0
    0
  • There is a Neolithic walled citadel with three rings of walls.

    0
    0
  • Behind them came the booming clang of descending transport rings.

    0
    0
  • In this volume, you'll discover the Linking Rings, one of magic's most enduring classics.

    0
    0
  • Wedding ceremony: Giving of rings with, if you can, a tight close-up of the hands.

    0
    0
  • colorful rings and garden critters that can be sorted and stacked onto three soft flower stems.

    0
    0
  • With golden comb so lustrous, And thereby a song sings, It has a tone so wondrous, That powerful melody rings.

    0
    0
  • commutative rings is motivated by the properties of the integers.

    0
    0
  • concentric bed rings to reduce risk of access.

    0
    0
  • De la Tour's rich contralto rings out; a contrast with Sheehan's fluting, soft soprano.

    0
    0
  • counterfeiting rings have become even more sophisticated in their methods of producing A look alike @ software and components.

    0
    0
  • A mourning broach making a sad counterpoint to the mourning rings on her hands.

    0
    0
  • crazy about the ember, men's moissanite wedding rings would just be a perfect wedding gift for him.

    0
    0
  • crinkle paper are encircled by teething rings, some of which have a smiling face or chewy star hanging from them.

    0
    0
  • The Mix & Match Activity garden has colorful rings and garden critters that can be sorted and stacked onto three soft flower stems.

    0
    0
  • crumpet rings or 3 3 1/4 in plain metal pastry cutters.

    0
    0
  • Associated evidence implies their use with saggar rings to contain wig curlers in the kiln.

    0
    0
  • Starter kit includes special tungsten carbide tipped router cutter, template and three spacer rings.

    0
    0
  • defyke all great works of literature, the Lord of the Rings defies classification.

    0
    0
  • The samples were dated using dendrochronology, which uses the pattern of growth rings to age timber.

    0
    0
  • How to easy buy perfect loose diamonds, diamond rings, diamond earrings.

    0
    0
  • dolerite rings complexes near Queenstown, funded by the South African Water Resources Commission.

    0
    0
  • White rings left from either a hot drink or a wet glass should be attended to right away.

    0
    0
  • How to easy buy perfect loose diamonds, diamond rings, diamond earrings.

    0
    0
  • Made of a specially formulated conductive silicone elastomer, the sleek black rings are designed to please.

    0
    0
  • When coming down you can collect more rings and chaos emeralds, but beware of the bombs!

    0
    0
  • endomorphism rings of standard objects in this category.

    0
    0
  • getting engaged We have the etiquette lowdown on everything from popping the question to buying the rings and meeting your future in-laws!

    0
    0
  • Affirm your commitment through the beauty of moissanite engagement rings.

    0
    0
  • The use of rings as a symbol of everlasting love enshrined in marriage can be traced back thousands of years.

    0
    0
  • enumerated in a list of axioms: They are both factorization rings.

    0
    0
  • The effect of the rings of teeth can be very erotic to the wearer.

    0
    0
  • On hearing a bell ringing intermittently occupants should get ready to evacuate, and must evacuate immediately when the alarm rings continuously] .

    0
    0
  • There isn't a song on the tape that rings false.

    0
    0
  • I just wondered how you're coping with new fatherhood at the moment with all the Rings fever?

    0
    0
  • The rock has a spotted appearance due to large circular pink feldspars with inner concentric rings.

    0
    0
  • flan rings, they are easier to remove at a later stage.

    0
    0
  • Super buy flashy Super Bowl rings as party favors.

    0
    0
  • garnet cluster ring is in generally good condition, there are general scratches to all of the rings.

    0
    0
  • The standard engine gasket set for the MGB comes with the valve guide seals (" O " rings ).

    0
    0
  • As the stomach empties, these constrictor rings begin further up in the body of the stomach promoting further gastric emptying.

    0
    0
  • Hot product rings, bracelet earring, pendant with genuine gemstones.. .

    0
    0
  • They looked haggard, their chests sunken, black rings under their eyes.

    0
    0
  • hard casearMax 70 telescope comes with a 25mm CEMAX eyepiece, clamshell mounting rings, Sol Ranger sun finder, and hard travel case.

    0
    0
  • The key lies in the way in which growth rings change from being juvenile sapwood to becoming mature heartwood in later life.

    0
    0
  • heterocyclic rings with nitrogenous bases with varying functional groups.

    0
    0
  • By the same token, they also identify the positions of the rings and ring systems in the phane parent hydride.

    0
    0
  • interlinked pewter rings.

    0
    0
  • You can use petroleum jelly to hold the sealing rings in place during assembly.

    0
    0
  • Studios are similar, but have a kitchenette with two cooking rings, kettle and fridge.

    0
    0
  • kitchenette area with 2 rings, microwave, kettle, coffee maker, fridge.

    0
    0
  • As she lifted the knocker a second time, the rings on her fingers glittered in the sunlight.

    0
    0
  • lariat ethers are so flexible that they can stick their tails into their rings (nice trick!

    0
    0
  • leather bound with three rings of iron chain.

    0
    0
  • Your wedding rings were meant to last a lifetime.

    0
    0
  • With golden comb so lustrous, And thereby a song sings, It has a tone so wondrous, That powerful melody rings.

    0
    0
  • magma rings.

    0
    0
  • The young marchioness had beautiful ear-rings, and two rings, which gave me a pretext for admiring the beauty of her hands.

    0
    0
  • The rings of the running martingale should be able to touch the bottom of the jaw, no lower down the neck.

    0
    0
  • The Lord of the Rings Trilogy is a cinematic masterpiece.

    0
    0
  • This is the subject of Tolkien's epic masterpiece Lord of the Rings.

    0
    0
  • In the second phase beginning around 2800BC, the wooden posts were replaced by stone megaliths, in two concentric rings.

    0
    0
  • Material in the rings ranges in size from a few micrometers to several tens of meters.

    0
    0
  • miscounted phone rings (a la Xringd) or randomly dropped packets (a la port knocking) are not a concern.

    0
    0
  • Devotional rings have a holy name or sacred monogram on them.

    0
    0
  • napkin rings are made out of solid copper sheet.

    0
    0
  • He was well dressed, but his brilliant necktie, shining pin, and glittering rings were flamboyant in their effect.

    0
    0
  • nipple rings like everyone else, I don't know.

    0
    0
  • old lady with seven blogs who literally runs rings around me!

    0
    0
  • The rings have an O 120 o bridge, and are almost orthogonal to each other.

    0
    0
  • Some cookers use a mixture of fuels - for example, an electric oven with gas rings on the hob.

    0
    0
  • overbearoxes) as I once spent a very long time trying to fit rings from a larger overbore size onto a smaller piston.

    0
    0
  • Make-up didn't quite hide the dark rings under her eyes or the unhealthy pallor of her skin.

    0
    0
  • In all he rang peals at 288 towers, 54 of which were rings of twelve.

    0
    0
  • petroleum jelly to hold the sealing rings in place during assembly.

    0
    0
  • You can use petroleum jelly to hold the sealing rings in place during assembly.

    0
    0
  • phenyl rings [7] .

    0
    0
  • piston rings at each end.

    0
    0
  • polite manner within 6 rings.

    0
    0
  • polycyclic aromatic hydrocarbons are molecules built up of benzene rings which resemble fragments of single layers of graphite.

    0
    0
  • pornography rings has serious social and health consequences.

    0
    0
  • The research implies the moons are very porous - similar to moons orbiting just outside Saturn's rings.

    0
    0
  • prompt attention to my order - the rings arrived safely and are just right!

    0
    0
  • prostitution rings in Britain.

    0
    0
  • The three rings of indexing holes in the headstock pulley were engaged by a pointer mounted on a swinging bracket.

    0
    0
  • It rings like a gigantic gong, undergoing constant pulsations.

    0
    0
  • pyrrole rings.

    0
    0
  • They include a traditional Scottish quaich, items of crystal, business card holders, key rings, pens and more.

    0
    0
  • As becoming the youngest quarterback in NFL history to wear two championship rings.

    0
    0
  • Forget your rope rings and rubber quoits; these are the genuine article.

    0
    0
  • Everyone is a judge of taste and for me toe rings look retarded on everyone.

    0
    0
  • ribose rings.

    0
    0
  • A series of concentric rings found in sand on a beach showed very high levels of ionization.

    0
    0
  • Unique ladies right hand rings, right hand diamond rings & sterling silver right hand ring.

    0
    0
  • Well, this can be explained by the presence of three bulky benzene rings (see below ).

    0
    0
  • wedding rings Your wedding rings were meant to last a lifetime.

    0
    0
  • This type of process is applied to needle or roller bearings, gears and piston rings, gears and piston rings.

    0
    0
  • rings for eons, men have not.

    0
    0
  • Resources are traded for colony ships, trade ships, and fleet upgrades of freight rings, booster rockets, and cannon.

    0
    0
  • router cutter, template and three spacer rings.

    0
    0
  • And mercury sable of a medical these rings feature checks and paying.

    0
    0
  • The key lies in the way in which growth rings change from being juvenile sapwood to becoming mature heartwood in later life.

    0
    0
  • scud across a bright moon it is often surrounded by a bright disk and faint colored rings, a lunar corona.

    0
    0
  • Rubber rings are compressed between the fitting and the pipe in such a way as to produce a watertight seal.

    0
    0
  • A church of silent air rings loud today; hymn books stand sentry by the doors, orders of service behind them.

    0
    0
  • slice the shallots into rings and heat in the oyster sauce.

    0
    0
  • It rings alarm bells when you look at the way some gaming TV shows have turned out.

    0
    0
  • Unique ladies right hand rings, right hand diamond rings & sterling silver right hand ring.

    0
    0
  • Hard chrome snakes and tip with lined stripping rings.

    0
    0
  • We design and create many different styles of diamond rings, including many classic solitaires.

    0
    0
  • solitaire Diamond rings This is the index page for our diamond solitaire rings.

    0
    0
  • The great message that rings out from chapter 1 of Genesis to chapter 22 of Revelation is that God is totally sovereign.

    0
    0
  • speedy delivery of the rings.

    0
    0
  • squid rings to play at your own shipwreck party.

    0
    0
  • strolled across to the throng of travelers debating Bored of the Rings.

    0
    0
  • The custom was curtailed when brides began to get superstitious about taking their rings off after the ceremony.

    0
    0
  • It is not meant to promote our tanzanite rings or tanzanite gem stone jewelry.

    0
    0
  • Most engagement tanzanite rings are made in white gold with diamonds, both (tanzanite and diamonds) of which are quite expensive.

    0
    0
  • You can often find teddy bear rattles or teething rings that have teddy bears on them.

    0
    0
  • teetheain teething rings can be cooled in the fridge, which may help.

    0
    0
  • Later a raven-haired temptress, who looked awfully like Liv Tyler out of Lord Of The Rings, paid a welcome visit.

    0
    0
  • tenon rings are part silver and part gold.

    0
    0
  • tethering rings on block or bow perches breaking due to badly welded joints.

    0
    0
  • torusse two ways, are shown as the two anchor rings, or solid tori, on the screen.

    0
    0
  • tracheal rings opposite the fifth, sixth and seventh cervical vertebrae.

    0
    0
  • The clerestory continues as in the main transepts, i.e. with shaft rings.

    0
    0
  • Whatever the real reason, Lord of the Rings is a hugely popular movie trilogy.

    0
    0
  • turmoil of the ancient world, confidence in God rings out.

    0
    0
  • We have necklaces, pendants, earrings, braclets and rings, including turquoise, amber and pearls.

    0
    0
  • A single sweet pea plant is tied onto each cane using twine or sweet pea rings.

    0
    0
  • This completely unabridged version of Lord of the Rings is brought vividly to life through an assured performance by Rob Inglis.

    0
    0
  • If it rings untrue in any aspect, then it feels as tho the reality is being twisted simply to serve the comedy.

    0
    0
  • He has gorgeous hands, with some really wacky silver rings.

    0
    0
  • walled citadel with three rings of walls.

    0
    0
  • Whereas women have worn wedding rings for eons, men have not.

    0
    0
  • Such individual commissions have ranged from a silver torque to gold wedding rings and tiaras.

    0
    0
  • welkin rings!

    0
    0
  • Digital effects The Lord of the Rings films have become well-known for their brilliant use of digital effects.

    0
    0
  • A natural wonderland, visitors have flocked here to experience first hand the magical landscapes seen in The Lord of the Rings.

    0
    0
  • zirconium rings.

    0
    0
  • In Rhabdopleura each zooid forms its own delicate tube composed of a characteristic series of distinct rings.

    0
    0
  • Her final word on herself rings true, " Toujours tourmentee des choses divines."

    0
    0
  • arvensis, is probably a variety of the pasture mushroom; it grows in rings in woody places and under trees and hedges in meadows; it has a large scaly round cap, and the flesh quickly changes to buff or brown when cut or broken; the stem too is hollow.

    0
    0
  • Its natural habit is to grow in rings, and the grassy fairy-rings so frequent amongst the short grass of downs and pastures in the spring are generally caused by the nitrogenous manure applied to the soil in the previous autumn by the decay of a circle of these fungi.

    0
    0
  • Repsolds also provide two insulated sliding contact rings instead of the single ring g, so that the electric current for illuminating the lamps does not pass through the instrument itself but may come to the micrometer from the storage battery through two insulated leads.

    0
    0
  • There are several joints in general use for the best class of work which are formed with the aid of india-rubber rings or collars, any expansion being divided amongst the whole number of joints.

    0
    0
  • The parable of the three rings is the epitome of the pragmatic position.

    0
    0
  • In 1826 he described the prismatically-coloured films of metal, known as Nobili's' rings, deposited electrolytically from solutions of lead and other salts when the anode is a polished iron plate and the cathode is a fine wire placed vertically above it.

    0
    0
  • The latter names a disengaged junction circuit, then " tests " the line of the wanted subscriber, and if she finds it free, finally completes the connexion and rings the subscriber.

    0
    0
  • It grows in small rings, which give it the appearance of growing in tufts, though it is really closely and evenly distributed over the whole scalp. The figures of the men are muscular and well-formed and generally pleasing; a straight, well-formed nose and jaw are by no means rare, and the young men are often distinctly good-looking.

    0
    0
  • (I) The polyp, when present, is without the strongly developed longitudinal retractor muscles, forming ridges (taeniolae) projecting into the digestive cavity, seen in the scyphistoma or scyphopolyp. (2) The medusa, when' present, has a velum and is hence said to be craspedote; the nervous system forms two continuous rings running above and below the velum; the margin of the umbrella is not lobed (except in Narcomedusae) but entire; there are characteristic differences in the sense-organs (see below, and Scyphomedusae); and gastral filaments (phacellae), subgenital pits, &c., are absent.

    0
    0
  • One, the " upper " or ex-umbral nervering, is derived from the ectoderm on the ex-umbral side of the velum; it is the larger of the two rings, containing more numerous but smaller ganglioncells, and innervates the tentacles.

    0
    0
  • Sometimes the activity of the successive cambiums simply results in the formation of concentric rings or arcs of secondary xylem and phloem.

    0
    0
  • The trachea or windpipe is strengthened by numerous cartilaginous, often osseous, complete rings, but in the emeu several of these rings are incomplete in the medioventral line, and permit the inner lining of the trachea to bulge out into a large neck-pouch, which is used by both sexes as a resounding bag.

    0
    0
  • External tympaniform membranes exist, with great variations, between the specialized one or two last tracheal and some of the first bronchial rings.

    0
    0
  • The essential feature is that the proximal end of the inner membranes is attached to the last pair of tracheal rings; outer tympaniform membranes exist generally between the 2nd, 3rd and 4th bronchial semi-rings.

    0
    0
  • The lower portion of the trachea consists of thin membranes, about half a dozen of the rings being very thin or deficient.

    0
    0
  • Omitting the paired tracheo-clavicular muscles, we restrict ourselves to the syringeal proper, those which extend between tracheal and bronchial rings.

    0
    0
  • - Syrinx muscles of either side attached to the dorsal and ventral corners of the rings.

    0
    0
  • In the same way certain governments become famous for certain commodities, as Moscow for osier baskets, flower baskets, wicker furniture and lace; Kostroma for lace, wooden utensils, toys, wooden spoons, cups and bowls, bast sacks and mats, bast boots and garden products; Yaroslavl for furniture, brass samovars, saucepans, spurs, rings, &c.; Vladimir for furniture, osier baskets and flower-stands and sickles; NizhniyNovgorod for bast mats and sacks, knives, forks and scissors; Tver for lace, nails, sieves, anchors, fish-hooks, locks, coarse clay pottery, saddlery and harness, boots and shoes, and so on.

    0
    0
  • We have thus grounds for believing that the original nebula will separate into a series of rings all revolving in the same direction with a central nebulous mass in the interior.

    0
    0
  • He obtained in 185 9 the Adams prize in Cambridge for a very original and powerful essay, " On the Stability of Saturn's Rings."

    0
    0
  • The expression has meanwhile changed: the face is pale or livid; there are dark rings under the eyes; the features are pinched and sharp, and the whole skin shrunken; the fingers are dead white, the nails blue.

    0
    0
  • The frame is crossed by four metal horizontal rods passing through holes large enough to allow them to rattle when the sistrum is shaken, the rods being prevented from slipping out altogether by little metal stops in the shape of a leaf; sometimes metal rings are threaded over the rods to increase the jingling.

    0
    0
  • The peristomium has no setae, and the setae generally are hair-like or uncinate, often forming almost complete rings.

    0
    0
  • When several rings or circles were combined representing the great circles of the heavens, the instrument became an armillary sphere.

    0
    0
  • Eratosthenes (276-196 B.C.) used most probably a solstitial armilla for measuring the obliquity of the ecliptic. Hipparchus (160-125 B.C.) probably used an armillary sphere of four rings.

    0
    0
  • The armillary sphere survives as useful for teaching, and may be described as a skeleton celestial globe, the series of rings representing the great circles of the heavens, and revolving on an axis within a horizon.

    0
    0
  • They have a passion for fine clothes and ornaments, tricking themselves out with glass trinkets, rings and articles of ivory and horn.

    0
    0
  • is not large it is of considerable importance to stock-breeders, as it is a frequent occurrence for buyers for export-to Argentina, Australasia, Canada, the United States and elsewhere-to bid freely at the sale rings, and often to pay the highest prices, thus stimulating the sales and encouraging the breeding of the best types of native stock.

    0
    0
  • The park system consists of two concentric rings, the inner being the city system proper, the outer the metropolitan system undertaken by the commonwealth in co-operation with the city.

    0
    0
  • The concentric castle, with its rings of walls, began to displace the old keep and bailey with.

    0
    0
  • Let -I- B, - B, be two smaller trunnions which project out from the sides of the two strips connecting together a pair of rings CC. The rings and the connecting strips constitute the circuit which is to be rendered movable.

    0
    0
  • 5 the current is shown dividing round the two rings; but in all the balances, except those intended for the largest currents, the current really circulates first round one ring and then round the other.

    0
    0
  • The fragments indicate the great 'variety of subjects discussed: the origin of the appeal to the people (provocatio); the use of elephants in the circus games; the wearing of gold rings; the introduction of the olive tree; the material for making the toga; the cultivation of the soil; certain details as to the lives of Cicero and Terence.

    0
    0
  • (For views of interior and exterior, see Architecture.) for in the entrance gateway of the Lal Darwaza or Red Gate mosque at Jaunpur, where an arch (of two rings of ogee shape) is carried by a solid wall, built under it, which is pierced with three doorways with bracket-capitals and architraves, returning therefore to trabeated construction.

    0
    0
  • Carbocyclic rings will next be treated, benzene and its allies in some detail; and finally the heterocyclic nuclei.

    0
    0
  • Perkin, junr., in 1883, that ethylene and trimethylene bromides are capable of acting in such a way on sodium acetoacetic ester as to form triand tetramethylene rings.

    0
    0
  • von Baeyer has sought to explain the variations in stability manifest in the various polymethylene rings by a purely mechanical hypothesis, the " strain " or Spannungs theory (Ber., 1885, p. 2277).

    0
    0
  • Baeyer supposes that in the formation of carbon, rings " the valencies become deflected from their positions, and that the tension thus introduced may be deduced from a comparison of this angle with the angles at which the strained valencies would meet.

    0
    0
  • Markownikov, Ann., 1898, 302, p. I); and many other cases of the conversion of six-carbon rings into fivecarbon rings have been recorded (see below, Decompositions of the Benzene Ring) .

    0
    0
  • Similar considerations will apply to rings containing other elements besides carbon.

    0
    0
  • Other hydrocarbon nuclei generally classed as aromatic in character result from the union of two or more benzene nuclei joined by one or two valencies with polymethylene or oxidized polymethylene rings; instances of such nuclei are indene, hydrindene, fluorene, and fluoranthene.

    0
    0
  • Hitherto we have generally restricted ourselves to syntheses which result in the production of a true benzene ring; but there are many reactions by which reduced benzene rings are synthesized, and from the compounds so obtained true benzenoid compounds may be prepared.

    0
    0
  • Restricting ourselves to compounds resulting from the fusion of benzene rings, we have first to consider naphthalene, C10H8, which consists of two benzene rings having a pair of carbon atoms in common.

    0
    0
  • (7) (2) In the first symbol it is assumed that one of the affinities of each of the two central carbon atoms common to the two rings acts into both rings, an assumption involving a somewhat wide departure from all ordinary views as to the manner in which affinity acts.

    0
    0
  • This symbol harmonizes with the fact that the two rings are in complete sympathy, the one responding to every change made in the other.

    0
    0
  • Then, on account of the relatively slight - because divided - influence which would be exercised upon the two rings by the two affinities common to both, the remaining four centric affinities of each ring would presumably be less attracted into the ring than in the case of benzene; consequently they would be more active outwards, and combination would set in more readily.

    0
    0
  • The centric formula proposed by Bamberger represents naphthalene as formed by the fusion of two benzene rings, this indicates that it is a monocyclic composed of ten atoms of carbon.

    0
    0
  • benzenoid rings as represented by the symbols: - Anthracene Phenanthrene In both cases the medial ring is most readily attacked; and various formulae have been devised which are claimed by their authors to represent this and other facts.

    0
    0
  • For general purposes, however, the symbol (2), in which the lateral rings are benzenoid and the medial ring fatty, represents quite adequately the syntheses, decompositions, and behaviour of anthracene.

    0
    0
  • (7) (2) Phenanthrene is regarded by Armstrong as represented by (3), the lateral rings being benzenoid, and the medial ring fatty; Bamberger, however, regards it as (4), the molecule being (3) (4) entirely aromatic. An interesting observation by Baeyer, viz.

    0
    0
  • Fiveand six-membered rings are the most stable and important, the last-named group resulting from the polymerization of many substances; threeand four-membered rings are formed with difficulty, and are easily ruptured; rings containing seven or more members are generally unstable, and are relatively little known.

    0
    0
  • The elements which go to form heterocyclic rings, in addition to carbon, are oxygen, sulphur, selenium and nitrogen.

    0
    0
  • Similarly, two or more methine groups may be replaced by the same number of nitrogen atoms with the formation of rings of considerable stability.

    0
    0
  • Heterocyclic rings may be systematically surveyed from two aspects: (I) by arranging the rings with similar hetero-atoms according to the increasing number of carbon atoms, the so-called " homologous series "; or (2) by first dividing the ring systems according to the number of members constituting the ring, and then classifying these groups according to the nature of the hetero-atoms, the so-called " isologous series."

    0
    0
  • The second method possesses greater advantages, for rings of approximate stability come in one group, and, consequently, their derivatives may be expected to exhibit considerable analogies.

    0
    0
  • True ring systems, which possess the characters of organic nuclei, do not come into existence in threeand four-membered rings, their first appearance being in penta-atomic rings.

    0
    0
  • Obviously, isomeric ring-systems are possible, since the carbon atoms in the original rings are not all of equal value.

    0
    0
  • Thus furfurane yields the following rings by the introduction of one and two nitrogen atoms: CH=N N=CH..

    0
    0
  • One or two benzene nuclei may suffer condensation with the furfurane, thiophene and pyrrol rings, the common carbon atoms being vicinal to the hetero-atom.

    0
    0
  • Proceeding to the six-membered hetero-atomic rings, the benzo-, dibenzoand naphtho-derivatives are frequently of great commercial and scientific importance.

    0
    0
  • Chemie, 24, p. 468) submitted the view that fluorescence was due to the presence of certain " fluorophore " groups; such groupings are the pyrone ring and its congeners, the central rings in anthracene and acridine derivatives, and the paradiazine ring in safranines.

    0
    0
  • The proboscis bears rings of recurved hooks arranged in horizontal rows, and it is by means of these hooks that the animal attaches itself to the tissues of its host.

    0
    0
  • The crook is usually richly ornamented, and is divided from the shaft by a boss; the shaft is commonly separated into sections by rings, so that it can be taken to pieces.

    0
    0
  • It was lined within and without with gold, and through four golden rings were placed staves of acacia wood, by means of which it was carried.

    0
    0
  • Sheets of mica very often show coloured rings and bands (Newton's rings), due to the interference of light at the surfaces of internal cleavage cracks.

    0
    0
  • Trans., 1885, 176, 455) introduced a modification of the usual ballistic arrangement which presents the following advantages: (I) very considerable magnetizing forces can be applied with ordinary means; (2) the samples to be tested, having the form of cylindrical bars, are more easily prepared than rings or wires; (3) the actual induction at any time can be measured, and not only changes of induction.

    0
    0
  • In order to meet the objection that the phenomenon might be due to electromagnetic action between the coil and the rod, Bidwell made some experiments with iron rings, and found that the length of their diameters varied under magnetization in precisely the same manner as the length of a straight rod.

    0
    0
  • magnetization upon the dimensions of iron rings in directions perpendicular to the magnetization, and upon the volume of the rings.

    0
    0
  • Experiments on the effect of external hydrostatic pressure upon the magnetization of iron rings have also been made by F.

    0
    0
  • After one of the rings had been annealed at 840°, its maximum permeability at ordinary temperatures was 4000 for H =1.84; when it had been subsequently annealed at 1150°, the maximum permeability rose to 4680 for H =1.48, while the hysteresis loss for 2 B = t 4000 was under 500 ergs per c.cm.

    0
    0
  • It may be remarked that, whereas Fleming and Dewar employed the ballistic method, their specimens having the form of rings, Honda and Shimizu worked magnetometrically with metals shaped as ovoids.

    0
    0
  • 910-915) by the Roman poet, Lucretius (96-5555 B.C.), in which it is stated that the stone can support a chain of little rings, each adhering to the one above it, indicates that in his time the phenomenon of magnetization by induction had also been observed.

    0
    0
  • The tergites, or chitinized dorsal halves of the body rings, are fused to form a " prosomatic carapace," or carapace of the prosoma, in both Limulus and Scorpio (see figs, 7 and 8).

    0
    0
  • Among his other papers may be mentioned those dealing with the formation of fairy rings (1807), a synoptic scale of chemical equivalents (1814), sounds inaudible to ordinary ears (1820), the physiology of vision (1824), the apparent direction of the eyes in a portrait (1824) and the comparison of the light of the sun with that of the moon and fixed stars (1829).

    0
    0
  • In Bode's Jahrbuch (1776-1780) he discusses nutation, aberration of light, Saturn's rings and comets; in the Nova acta Helvetica (1787) he has a long paper "Sur le son des corps elastiques," in Bernoulli and Hindenburg's Magazin (1787-1788) he treats of the roots of equation and of parallel lines; and in Hindenburg's Archiv (1798-1799) he writes on optics and perspective.

    0
    0
  • It may be added that he first examined the conditions of stability of the system formed by Saturn's rings, pointed out the necessity for their rotation, and fixed for it a period (Io h 33 m) virtually identical with that established by the observations of Herschel; that he detected the existence in the solar system of an invariable plane such that the sum of the products of the planetary masses by the projections upon it of the areas described by their radii vectores in a given time is a maximum; and made notable advances in the theory of astronomical refraction (Mec. cel.

    0
    0
  • We imagine a wave-front divided o x Q into elementary rings or zones - often named after Huygens, but better after Fresnelby spheres described round P (the point at which the aggregate effect is to be estimated), the first sphere, touching the plane at 0, with a radius equal to PO, and the succeeding spheres with radii increasing at each step by IX.

    0
    0
Browse other sentences examples →