Webs Sentence Examples
The result is that no trace of " fiddling " exists, and the movable and fixed webs come sharply together in focus with the highest powers.
I've been thinking about rigging up something on the front to catch the webs.
It didn't spin webs and looked more to Evelyn like a mutated cat, but the moment she recalled Kiera's fear, she also realized that the cat-like creature would easily pass as a large spider.
One of the most essential points in a good micrometer is that all the webs shall be so nearly in the same plane as to be well in focus together under the highest powers used, and at the same time absolutely free from " fiddling."
To avoid such error Dawes used double wires, not spider webs, placing the image of the star symmetrically between these wires, as in fig.
Other astronomers use the two distance-measuring webs, placed at a convenient distance apart, for position wires.
I, 2 and 3), used to bolt the head of one of the screws, and the instrument was provided with a slipping piece, giving motion to the micrometer by screws acting on two slides, one in right ascension, the other in declination, so that " either of the, webs can be placed upon either component of a double star with ease and certainty (Mem.
But in OS measures index error can be eliminated by bisecting both stars with the same web (or different webs of known interval fixed on the same frame), and not employing the fixed web at all.
The five fixed webs are attached to the table which is secured to the bottom of the box by the screws p. The three movable webs are attached to the projections XX on the frame aa.
These furrows have apparently been cut in situ with a very accurate engine; for not the slightest departure from parallelism can be detected in any of the movable webs relative to the fixed webs.
AdvertisementThe varnish to fix the webs is applied, not on the surface T as is usual, but on a bevel for the purpose,' the position of the webs depending on their tension to keep them in their furrows.
The electric lamp a gives illumination of the webs in a dark field, nearly in the manner described for the Cape transit circle micrometer; the intensity of illumination is regulated by a carbon-resistance controlled by the screw b.
If the reading for coincidence of the movable with the fixed webs is known, we then obtain from the single reading of S the difference from coincidence of the divisions of the two scales.
The object glass of the micrometer-microscope is placed midway between the plane of the photographic plate and the plane of the micrometer webs.
The double webs composing the sides of the fixed square shall be strictly parallel, and shall form a true square of exactly ten revolutions of the screw on the side.
AdvertisementThe micrometer readings for coincidence of the movable webs with the webs of the fixed square shall be exactly 0 000R and io-000R.
The image of a normal reseau-square, as viewed in the microscope, shall exactly coincide with the square formed by the fixed webs - that is to say, the image of the sides of a normal reseau-square shall measure exactly io screw-revolutions.
By means of the quick rack motions A and B move the plate so as to bring the reseau-square into the centre of the field of the micrometer; then, by means of the screw heads o, p, perfect the coincidence of the " fixed square " of webs, with the image of the reseau-square.
Estimate the diameter of the star's image in terms of the 4" intervals of the movable webs.
In the members of the typical genus Lemur, as well as in the allied Hapalemur and Lepidolemur, none of the toes or fingers are connected by webs, and all have the hind-limbs of moderate length, and the tail long.
AdvertisementThese webs, which are typically subcircular in form, consist of a system of threads radiating from a common centre and crossed at intervals, and approximately at right angles, by a series of concentric lines, the whole being suspended in a triangular, quadrangular or polygonal framework formed of so-called foundation lines, attached to the branches or leaves of trees or other firm objects in the neighbourhood.
Perfect orbicular webs are made by many genera of Argyopidae (Zilla, Meta, Gasteracantha), the best-known example being that of the common garden spider of England, Aranea or Epeira diademata; but these webs are not associated with any tubular retreat except such as are made under an adjoining leaf or in some nook hard by.
It was formerly supposed that this custom was peculiar to a single species, which was called the "gossamer" spider from the fact that the floating webs, when brought to the earth by rain or intercepted by bushes and trees, coat the foliage or grass with a sheeting of gossamer-like silk; but the habit is now known to be practised by the newly-hatched young of a great variety of species belonging to several distinct families.
Males of the Argyopidae hang on the outskirt s of the webs of the females and signal their presence to her by jerking the radial threads in a peculiar manner.
Sometimes the shape of the spider combines with the colour to produce the same effect, as in the species of Uloborus, which as they hang in thin shabby-looking webs exactly resemble fragments of wind-blown rubbish.
AdvertisementThe fore-limbs have four toes and a rudimentary thumb, all with claws; the hind limbs are larger, with five distinct toes, united by short webs at their bases.
For an account of the courtship and dancing of spiders, of their webs and floating lines, the reader is referred to the works of M'Cook (30) and the Peckhams (31), whilst an excellent account of the nests of trap-door spiders is given by Moggridge (32).
This micrometer is provided with two pairs of parallel webs.
It was he who compared laws to spiders' webs, which catch small flies and allow bigger ones to escape.
The two centre tail feathers attain a length of 34 in., and, being destitute of webs, have a thin wire-like appearance.
In the red bird of paradise (Paradisea rubra) the same feathers are greatly elongated and destitute of webs, but differ from those in the other species, in being flattened out like ribbons.
Itl ' At first girders had soli or plate webs, but for spans o 9 over ioo ft.
The Embiidae live in warm countries, and are very retiring in their habits, hiding under stones where they spin webs formed of silk produced by glands in the basal segments of the fore-feet.
The webs and nests, &c., formed by spiders are also of silk.
It is now generally accepted that these sounds are produced by the vibration of the webs of the outer tail-feathers, the webs of which are modified.
The males are without these protective spines and are exposed to special dangers as they wander in search of the webs of the females.
The almucantar was therefore used only to observe the vertical transits of stars in different azimuths over fixed horizontal webs, without touching the telescope.
These straps shall be made of wrought-iron or steel, and shall be riveted or bolted to the flanges or to the webs of the beams or girders.
Sometimes the beams rest upon the girders, and are riveted through the flanges to it; in this case the abutting ends of beams are spliced by scarf plates placed on each side of the webs and secured by rivets.
The outer lanceolate scapulars have one-half of their webs pure white, forming a conspicuous stripe along the side of the back.
The otter has an elongated, low body, short limbs, short broad feet, with five toes on each, connected together by webs, and all with short, moderately strong, compressed, curved, pointed claws.
Other spiders weave these beautiful, symmetrical, ethereal webs whose designs have been the inspiration for art and mythology for as long as there were spiders, he explained.
Imagine trying to monitor zillions of these webs.
As the dominant marine arthropods, crustaceans occupy a central and essential position in aquatic food webs.
The spiders and I have a truce, but if their webs become too blatant I start wielding my feather duster with a vengeance!
Scanner 8 tracks here, all of which are intriguing & rather convoluted webs of sound.
I rode a trout today, and drank the dew from spiders ' webs.
Initially the bottom slab and webs including the diaphragms were cast, with the top slab cast in a second stage.
I always found baby palmettos tangled in the webs when I dusted periodically.
By varying the compilation parameters, different webs may be produced over similar material for different audiences.
Dan took some great pix of the spiders webs in our garden this morning which were all frozen!
Seen en masse, the effect of these rippling color fields, outlined by dark webs, is almost psychedelic.
This is the highly anticipated sequel to Lightning Pool, one of the webs most popular casual games.
Spiders use webs to trap their victims, then using their potent venom, they slowly digest their prey.
At present there are upwards of fifty hand-loom weavers employed, the webs being chiefly plain silk.
To obviate this difficulty Felice Fontana of Florence (Saggio del real gabinetto di fisica e di storia naturale, 1 755) first proposed the use of spider webs in micrometers,' but it was not till the attention of Troughton had been directed to the subject by Rittenhouse that the idea was carried into practice.'
Two spider webs are stretched across the forks, one (t) being cemented in a fine groove cut in the inner fork k, the other (s) in a similar groove cut in the outer fork 1.
These grooves are simultaneously cut in situ by the maker, with the aid of an engine capable of ruling fine straight lines, so that the webs when accurately laid in the grooves are perfectly parallel.
The nozzles of small lamps are inserted in the tubes L, L, for illuminating the webs in a dark field; the light from these lamps is admitted through apertures in the strong hollow cylinder above mentioned (for illumination, see p. 385).
Now direct the telescope to a star near the equator and so that the star's image in its diurnal motion shall pass across the intersection of the two webs which mark the axis of rotation of the micrometer box.
The divisions of both drums are conveniently read, simultaneously, by the lens e; at night the lamp which illuminates the webs and the position-circle also illuminates the drum-heads (see on illumination p. 385).
It seems also to take a very clean V cut, as the webs can be laid in their furrows with an astonishing ease and precision.
Under such powers the webs can be brought into apparent contact with such precision and delicacy that the uncertainty of measurement seems to lie as much in the estimation of the fraction of the division of the head as in the accuracy of the contact.
Repsolds in more recent micrometers under construction give a second motion to the eyepiece at right angles to the axis of the micrometer screw; this enables the observer to determine the zero of position-angle for his movable webs with the same accuracy as he formerly could only do for the so-called position-angle webs.
One drawback to this form of instrument is that the two webs cannot be viewed simultaneously, and therefore the observer must rely on the steadiness of rate of the clockwork and uniformity in the conditions of refraction whilst the eye is moved from one eyepiece to the other.
Micrometers used for subdividing the spaces on graduated circles and scales have, in general, only a single pair of cross-webs or parallel webs moved by a single screw.
The focal length of the objective and the distance between the optical centre of the lens and the webs are so arranged that images of the divisions are formed in the plane of the webs, and the pitch of the screw is such that one division of the scale corresponds with some whole number of revolutions of the screw.
X 5 mm., the sides of this square being parallel spider webs 4" of arc apart; the size of the square is reckoned from centre to centre of these double webs.
Each of the two micrometer screws X and Y moves a system of six parallel webs, placed 4" of arc apart from each other.
The webs of each set of movable webs shall, inter se, be strictly parallel, and the two sets shall be strictly at right angles to each other.
Vogel and his successors employed one or other form of measuring machine, provided with a microscope having single or close parallel webs which could be successively pointed on the photographed lines of the star spectrum and the lines of the terrestrial spectrum.
By directing the telescope to a distant object, or to the intersection of the webs of a fixed collimating telescope (see Transit Circle), it is easy to measure the effect of a small change of zenith distance of the axis of the telescope in terms both of the level and of the micrometer screw, and thus, if the levels are perfectly sensitive and uniform in curvature and graduation, to determine the value of one division of each level in terms of the micrometer screw.
Two female wasp spiders Argiope bruennichi were found on their webs in Latchford Meadow in late August.
The flowers gone, the crisp and wintry sun Lit instead the webs that spiders weave.
In other games you'll swing and jump across webs in order to save Mary Jane, the woman you love.
Baby Argiope spiders make tiny webs in low-lying vegetation and are unlikely to attract your notice until they are mature.
As they grow, spiderlings build increasingly larger webs at ever greater heights, until they reach maturity and construct their trademark two-foot diameter web between tree limbs, tall grasses or other suitably elevated, sunny location.
You have probably seen the webs of these spiders in the early morning, a multitude of delicate funnels in the grass, speckled with dew.
Ore weaver spiders are remarkable for the beautiful, complex webs they spin daily, each reaching up to two feet (60 cm) in diameter.
Rather than spinning webs, these catlike spiders stalk and pounce on their prey, their leaps reaching distances of up to 16 times their own length.
Many will damage the stem of the plant, the edge of the leaf, or leave webs behind like thin cotton threads.
You may also see devil contacts, reptilian styles, spider webs, gremlins, and more.
It seems that as long as Spidey keeps slinging his webs, there will continue to be new action figures for children and collectors to enjoy.
Butler Webs has an assortment of Christmas poems written by amateur poets who have volunteered to share their work.
Parker can cast webs, scale buildings with no help, swing through the sky on his webs, use superhuman strength and more.
The company's Campana flats feature "webs" of jelly straps that entwine their way all around the shoe, from the toe to the heel.
Webs are also a favorite detail many artists add to this type of design.
Spiders and spider webs were popular themes in Victorian times, as they were thought to bring luck to the quilter.
Add them to large flowerpots, then decorate with spider webs or silver balls if desired.
Use a hot plate to display bubbling green liquid (a little food coloring in water works wonders) and top it all off with some spider webs and a standup Frankenstein.
At the very least, you need some spider webs, pumpkins and cauldrons to hold your snacks.
A few fake webs around in the corners of the house with some very large plastic spiders would be a start.
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