Sentence Examples:
In this it differs from the corresponding chromium salt, which is deoxidized into chromium oxide when ignited.
A thin slice of phosphorus placed in a deflagrating ladle and placed into the vapor of bromine ignites very quickly.
Put into a deflagrating spoon about four grains of phosphorus, and let it down into a bottle of chlorine, when the phosphorus will ignite instantaneously.
They are openings in the surface of the earth, from whence ignited matter of various kinds, smoke, and ashes, are sent forth by some subterranean agency.
A box half-filled with matches was found; we struck one, and it ignited immediately, a surprisingly good advertisement for the tightness of the hut whence they were collected.
Being a selection of original up-to-date and practical diagrams for installing annunciators, alarms, bells, electric gas lighting, telephones, electric power light and wiring circuits, induction coils, gas engine igniters, dynamos and motors, armature windings.
It was no uncommon thing to hear of a pit catching fire, through foul air or gas, which, if the miners were not careful, ignited and rushed through all the spaces whence the coals had been taken.
For example, by having a mechanism to make a piece of ignited charcoal revolve with different degrees of velocity, some persons will perceive a continuous circle of light before others, whose retina does not retain so long impressions that are made upon it.
We now know that the meteoric asteroids, spherically agglomerated into small masses, revolve round the Sun, intersect, like comets, the orbits of the luminous larger planets, and become ignited either in the vicinity of our atmosphere or in its upper strata.
In 1774, King George the Third and Queen Charlotte took their breakfast in one of the rooms, while in the apartment beneath fires were lighted on the floor, and various inflammable materials were ignited to attest that the rooms above were fire-proof.
The apparatus is fitted with a safety device which prevents premature explosion, so that the keeper is preserved from personal injury, and, unless culpable negligence is manifested, the charge cannot be ignited until it has been raised to its designed position.
After a bombardment of an hour and a half, seeing that the enemy extinguished the thatched roofs of their houses as fast as they were ignited, and that the ammunition was becoming exhausted, Lieutenant-Colonel O'Connor determined to carry the stockade by storm.
The moment they enter our atmosphere they ignite; the air is piled up and compressed ahead of them with inconceivable force, the resultant friction producing an immediate rise in temperature, and the shooting star, the meteor of popular parlance, is the result.
Aroused to a determination to thoroughly investigate the phenomenon, Morton quickly ignited a candle, and, holding it in one hand, he passed it close to the woman's eyes, the heavy lids of which he alternately raised with the fingers of his disengaged hand.
Meantime, unable to overhaul the dog-thief, the 'victim' had returned, and was nearing the mine, when a loud explosion and fire and smoke issuing from the wide open fissure in the ground, revealed the ignited 'Fire-Damp' and its inevitable, awful accessories!
The house was doomed even before the firemen reached the scene, for it was constructed, as so many summer boarding-houses are at seashore and mountain resorts, of thin novelty-siding outside and oil-stained ceiling boards inside; these act like kindling wood once they are ignited.
Under that heading come the tiled floors in the bedrooms, the square and mountainous eiderdowns that recline upon the beds, and the matches that take several seconds to ignite and leave a sulfurous odor that does not dissipate itself for several minutes.
As the sudden compression of a portion of atmospheric air yields heat sufficient to ignite tinder, or fuse and volatilize a descending meteor-mass, so the precipitation of one planet upon another would liberate sufficient heat to reduce them both to a state of fusion, or even of vapor.
The separation of a coal-field into small areas by dykes or faults is likewise very beneficial in case of fire in a coal-pit, for in this case the combustion is prevented from spreading widely, and destroying, as it otherwise would, the whole of the ignited seam.
It is evident that such flames possess a much greater igniting value than instantaneous static spark delivered by the high tension spark coil used with the battery or operated by the low tension magneto, and are capable of firing much weaker mixtures.
This apparently useless product was discarded and thrown in a nearby stream, when, to the astonishment of onlookers, a large volume of gas was immediately liberated, which, when ignited, burned with a bright and smoky flame and gave off quantities of soot.
Rudolph Diesel, was to avoid the explosive effect of the ordinary internal combustion engine by injecting a fuel into air so highly compressed that its heat would ignite the fuel, causing slow combustion of the fuel thus utilizing its energy to a greater extent.
Anne wrote in a strain of humility, which proceeded from the politeness natural to her, and which impelled her to support the assumed character of an equal, even when the prejudices of the two friends came into collision, had ignited, and caused an explosion.
The Kebabs are small pieces of mutton, passed on iron skewers, and roasted over fires of ignited charcoal, and, though the establishments are small, they are constantly filled with groups, who surrounding the copper dishes, seem to attest the excellence of the viands.
When the cylinders of such an engine are charged with a proper mixture, the engine will start by the ignition of the mixture contained in the compressing cylinder, for the pressure produced by the ignited gas will be sufficient to rotate the crankshaft.
Briefly stated, this consists in utilizing the heat of the products of combustion from the gas flame (which otherwise would be dissipated into the atmosphere) to raise the temperature of the gas before it is ignited; and, likewise, of the air necessary for combustion.
I confess, that, together with many hundreds more, I once concluded that the great advantage of the patent breech arose entirely from the loose state in which the powder was preserved while in the breech, and its thus being more instantaneously ignited.
Were a cubical grain to be ignited upon its whole surface, the decomposition may be supposed to take place gradually from the surface to the center, and the original cubical form to remain until the whole is consumed, the cube becoming smaller and smaller.
A combustible body falling into the atmosphere, under such circumstances, would become speedily ignited, but could not burn freely, until it became enveloped in air of greater density; but, on reaching the lower portions of the atmosphere, it would burn with great rapidity.
It is a remarkable fact, that spontaneous combustion, which takes place without the application of an ignited body, ensues in a variety of instances; and new facts daily occur, which show, that cases of this kind are more numerous than we had reason to suspect.
With some little difficulty the smaller ends of these brands were induced to kindle; but, once fairly ignited, they blazed up bravely, and thus provided with the necessary lights the adventurers boldly pushed forward and plunged into the recesses of the fissure.
If, for instance, a thermometer be held near an ignited body, it receives an impression connected with an elevation of temperature; this is partly produced by the conducting powers of the air, and partly by an impulse which is instantaneously communicated, even to a considerable distance.
These, when the fires were once ignited, would give a fire produced by the combustion of the inflammable gases accompanying the smoke, and which would burn spontaneously in a similar manner to the combustion of foul air from old shafts connected with coal mines.
In the instructions issued by the Government, it is stated that the lightning-rods placed upon powder-mills should be of such a height, and so situated, that no danger is incurred in igniting the powder-dust in the air by the lightning discharge at the pointed rod.
Books do not burn easily, unless surrounded with combustibles, but these are furnished in nearly all libraries, by surrounding the books on three sides with wooden shelves, which need only to be ignited at any point to put the whole collection in a blaze.
Then, applying its control, he transmitted the power thus achieved to the engine and after several attempts the starter caused the charge in a cylinder to be ignited as the flywheel turned onto a point where a firing current passed into a charge of fuel mixture.
Add to these the long-gathering passion of the dispossessed clans in the north, and that floating element of disaffection always ready to stir, and it will be seen that the materials for a rebellion were ready laid, and needed only a spark to ignite them.
The cylinder may become too hot, a deposit of carbon, a projecting electrode or plug body in the cylinder may become incandescent and ignite the charge which has been excessively heated by the high compression and mixture of the hot gases of the previous explosion.
Sometimes the diamond cools down without igniting, the same process must therefore be repeated, and a few extra bottles of oxygen will prevent disappointment, as every failure destroys the purity of the gas by admixture with atmospheric air when the stopper is removed.
There was some hitch also about applying the fuse to this weapon, fuses not having been known on board the tea-ship; but at last something was ignited, and out jumped one shell right into the middle of the market-square, and buried itself in the ground.
A violent north wind carried the flames across the Forum, and ignited the great curia or senate-house; not, however, that side of it which faced the cathedral, but the further side, which looked into the little forum where the royal palace was situated.
In the upper end of the cylinder or of the piston shield are provided electrodes which give an electric spark, or a platinum wire which is rendered incandescent by a current from an inductor or other source of electricity to ignite the combustible charge of the cylinder.
He sprang lightly from his heels, affected to scan a murky cloud-bank to the south, ignited his second cigarette from the first, and seemed relieved by the actual diversion of Laura, his present lawful consort, now plodding along the road just outside the fence.
When the lamp is to be lit a small rubber bulb is squeezed, forcing a quantity of the ether vapor into the burner, where it is ignited by a platinum wire rendered incandescent by a current passing from a small accumulator also placed in the lamp-post.
The carriage was not dirty, and all the windows were open; moreover, it harbored, so far, no natives beyond two nuns and a priest, who ate cherries continually and talked all at once with the rapidity of ignited fire-crackers and with no falling inflection.
You may glaze powder and make it so smooth that it would be very difficult indeed to ignite; but except that it enables the powder to resist moisture better, it is otherwise very detrimental, as tending both to prevent ignition and lengthening the period of effecting it.
The steamboats, at that time, used pine wood for fuel, which sent columns of ignited vapor many feet above the stack, and whenever the fire was stirred enormous showers of sparks would fly off, which in the night produced a very brilliant and beautiful effect.
Although the difficulty of compression appears to have been cleverly tackled in this invention, the possibility of the compressed mixture in the inlet casing and blower becoming ignited at the moment of admission by a residue of exhaust gas in the combustion chamber still exists.
When a number of grains of powder are placed together as in the charge of a gun, and a few of them are ignited at one end of the cartridge, a certain quantity of gas is developed of a temperature sufficiently high to ignite those in their immediate vicinity.
If you put a piece of potassium in contact with the water, the latter will at once decompose, the potassium absorbing the oxygen, and setting free the hydrogen as gas, which you could collect and ignite with a match, when you would find it would burn.
Even doors leading to adjoining rooms, where lights or fires are burning, ought to be kept closed while working with benzene, because the benzene vapors, which may be carried to the flame by a draft of air, would inevitably ignite and cause an explosion and fire.
Although adoption of the flasher enabled the consumption of gas to be reduced very appreciably, there was one noticeable drawback: the light had to burn both night and day, unless clockwork mechanism were introduced to extinguish the light at sunrise and to ignite it at twilight.
We must therefore change our theory of the solar spectrum, and no longer regard it merely as a continuous spectrum with certain rays absorbed by a layer of ignited metallic vapors, but as having also bright lines and bands superposed on the background of continuous spectrum.
Many igniting compositions are examples of the last type, consisting of a high explosive diluted with a neutral substance, and frequently containing in addition a composition which is inflamed by the explosion of the diluted high explosive, the flame in turn igniting the actual propellant.
While there is a change in the form of the valve, and in a number of small details, the gases are drawn into the cylinder, compressed, ignited, and released in exactly the same way and in the same rotation, as in the poppet valve engine just described.
Which is, that lightning, kept to itself, is quiescent; it is the assaulting contact of the thunderbolt that releases it from captivity, ignites its awful fires, and so produces an instantaneous combustion and explosion which spread disaster and desolation far and wide in the earth.
In an instant the ancient carved screens and other woodwork of the interior were ignited, and the very clothes of the unfortunate people caught fire; and still heaps upon heaps of inflammable materials were hurled incessantly inwards, until all within was in one universal blaze.
The entire city seemed threatened with destruction, for the weather having long been dry and warm, prepared the homesteads for their fate; and it was noted some of them, when scorched by the approaching fire, ignited before the flames had time to reach them.
It may be said that the position of the magneto-igniter is immaterial; it will be fixed in different positions on different types of engines, and so long as the operating mechanism is simple and effective, i.e., as direct as is practicable, it works well, and requires little attention.
The two distinguished gentlemen, who were peering through their telescopes, were highly delighted when they saw the bombs, which flew through the air like dragons with tails of fire, reach the points at which they had been aimed, ignite everything inflammable, and afterward explode.
The matchlock was an improvement over the former musket because both hands could be used to hold and aim the matchlock musket because the powder was ignited by a device that touched a slow-burning cord to the powder when a trigger was pulled with one finger.
As the electric sparks from the magneto ignite the gas, thus generating the power that drives the machine, so the positive vibrations, generated by a confident and determined will, create in the body the positive electromagnetic currents which incite and stimulate all vital activities.
In smokeless powder the oxygen is held in chemical union with nitrogen and hydrogen, but the bond between the nitrogen and the other elements is weak, so that when ignited the other more active elements are enabled easily to unite at the expense of the nitrogen.
Charcoal is unalterable and indestructible by any other body but fire; whence it follows, that when it is not actually kindled and ignited, the most powerful agents, such as the acids, though ever so strong and concentrated, have not the least effect on it.
The matches were in the upper portion of a pasteboard case about an inch in diameter and six inches in length and in a compartment beneath them was a bottle containing a chemical preparation, into which the brimstone-coated end of the match was dipped and thus ignited.
The sun, after throwing one fierce look over the broad and troubled sea, had sunk behind a hard, huge battlement of cloud, on the round waving edges of which ran a bright burning rim, that looked like a train of fire ignited by the glowing luminary behind.
These are specially useful where the liquid to be filtered is of a caustic or strongly acid nature, or where the filter with residue is to be ignited without consuming the filter, or where the residue is to be subsequently dissolved off the filter by acids or other solvents.
Melt the rosin and pitch together, add the other ingredients, and heat all in an iron vessel until all moisture is driven out, and the heated mass ignites from a burning chip of wood held over it; the flame is at once extinguished by a close-fitting lid.
The airplane guns required armor-piercing bullets for use against armored planes, incendiary bullets to ignite the hydrogen of the enemy's balloon or to fire the gasoline escaping through the wound in the hostile airplane's fuel tank, and tracer bullets to direct the aim of the aerial gunner.
Somewhere in the cupboards, too, is a curiously carved piece of iron, to fit into the hand, with a front of steel before the fingers, like a skeleton rapier guard; it is the ancient steel with which, and a flint, the tinder and the sulfur match were ignited.
It occurred to Davy, in the progress of these experiments, that, during this species of slow combination, although the increase of temperature might not be sufficient to render the gaseous matters luminous, or to produce flame, it might still be adequate to ignite solid matters exposed to them.
When the engine was waiting in the station, a lighted gas-jet, kept near the boiler, maintained the water at a high temperature; and while the horses were being hooked on, a large fusee, called a "steam-match," had been promptly ignited, and dropped flaming down the funnel.
The main principle of the wheel-lock is to generate the spark which is to ignite the powder for firing the shot in a self-acting manner, in contradistinction to the principle of the matchlock, where the ignition was served by a match which required to be kept constantly burning.
The bell of the alarm clock had been removed, and the clock so placed that at the fatal tick the striker would have vibrated against this rough area, which was probably inflammable like a match-end and which, on being ignited, would have ignited the fuse.
He had been, on this occasion, selected by me, because the last signal-fire had ignited so near to us, that caution and care were absolutely necessary in him who replied to it, to prevent any detection of the white man who might be employed to kindle it.
In support of such an opinion, he farther adduces the fact, that charcoal after being intensely ignited in chlorine, is not altered in its conducting power or color: in which case the carbon is freed from the hydrogen, and yet undergoes no alteration in its physical properties.
Ignition by the aid of the electric spark is convenient, for the reason that it may then be brought about in a closed vessel, and hence chemists still employ this method when it is required to ignite a mixture of oxygen with a combustible gas in a closed vessel.
If, on the contrary, the powder be in large spherical grains or pellets, the interstices will be large, and the first gases formed will flash through these, and ignite all the grains one after another with such rapidity that ignition may be regarded as simultaneous.
Under cover of darkness, the torpedo boat has been enabled to approach without being disabled by the projectiles from the revolving guns of the man-of-war, and has stopped suddenly and ignited the torpedo as soon as the latter came in contact with the enemy's hull.
Pass clean water in considerable quantities through the filter-paper and dry the latter carefully; place it in a spirally coiled wire and ignite with a match, holding the wire in such a way that the spicules released by the burning of the paper fall into a suitable receptacle.
The Spanish admiral had undertaken the destruction of the shipping in the basin, and to scuttle two powder-vessels, but his men, in their flurry, managed to ignite one of them in place of sinking it, and the explosion which occurred can be better imagined than described.
Two large rooms, really houses in themselves, are built upon this roof; these are the bleach houses, which are provided with artificial stone floors, rendering them thoroughly secure from the chance of ignited brimstone coming in contact with any part of the woodwork of the building.
Life exists and perpetuates itself on the earth on three conditions only, that fire should penetrate the body under its three forms, of which one resides in the sun's rays, one in the ignited aliments, and the third in respiration, which is air renewed by motion.
In 1807 there was discovered a composition which could be ignited by friction or concussion, and in 1839 the French had adopted the percussion lock, which exploded the cap and retracted, uncovering the vent before the backward rush of the gas could strike it.
The crackling sound of the flames increased, and thin wreaths of smoke found their way in through the crevices between the woodwork and the rock; still the stout door resisted the fire, which we began to hope might burn itself out without igniting our defenses.
A few coals partially ignited, seemed to mock at the visions of warmth and comfort they inspired, and the simmering of the kettle that hung low over the coals, made the absence of a cheery board, and a happy group around it only the more painfully apparent.
A squall of wind was parting the heavy volume of smoke and fire, and coming towards us, when a number of gunboats appeared in full chase, keeping up a very heavy fire, the crew of the nearest throwing stink-pots, with which they managed to ignite our mainsail.
Patiently did the wary leader watch the line of fire, which had been extinguished on the side next to the lower lands, now casting back a half-burned log far within the blackened area, and anon beating out insidious tussocks of dried grass, ignited by a smoldering ember.
At each inhalation the ignited circle enlarges and extends toward the edge of the bowl, and as the combustion takes place proportionally downward, it is evident that all the tobacco is consumed without the assistance of fingering it, as the Germans are in the habit of doing.
Dropping a lighted cigar on the ground, as if by accident, I took the opportunity, in stooping to pick it up, of igniting privately the piece of slow match, whose end, as I said before, protruded a very little beyond the lower rim of one of the smaller casks.
The lighter consists of a pair of corrugated jaws to screw to the lamp; the match is then quickly pushed between the jaws of the lighter, which ignites the match from friction, and the burnt match is then withdrawn sideways in an opposite direction to remove it.
The barn was so inflammable that a tiny match would ignite it, and, should the fire reach the house, the task would be equally effective, and far more enjoyable to the cruel spectators. "It was to this structure that the Sioux had applied the torch."
The effect of the former is nothing more than that of any other flame, or ignited vapor, which will not burn, unless the air with which it is surrounded be in a very pure state, and which is therefore extinguished when the air begins to be much vitiated.
He rushed into forensic battle, fearless of all consequences; and as the ancient war-chariot would sometimes set its axle on fire by the rapidity of its own movement, so would the ardent soul of Otis become ignited and fulminate with thought, as he swept irresistibly to the goal.
Then by opening first the steam valve of the spray injector, and next the petroleum valve gently, the very first spray of oil coming on the flaming waste immediately ignites without any explosion whatever; after which the quantity of fuel can be increased at pleasure.
One evening, in the very earliest stages, while his mother was nursing him, his father had come into the darkened chamber, and, after bending over the infant, had struck a match to ignite a cigar; and the eyes of the infant had blinked in the sudden light.
Or a string, moistened with turpentine, may be loosely twisted round the tube, and the turpentine ignited, afterwards the application of sudden cold to any point on the zone of hot glass will usually start a crack, which, if necessary, may be continued in the usual manner.
It should be kept constantly in mind that, if a combustible gas is allowed to escape and mix with air in any space and then ignited, an explosion of more or less violence is sure to occur. Gasoline and kerosene are lighter than water and will float on its surface.
Before they left the table they were all three in that excruciating state of rawness of the nerves, in which a man has the sensation that his brain is a violent explosive which a single jarring sound or word must ignite and blow to atoms, like a bomb-shell.
The first thing he did was to put out the fire which was in the magazine, below the cabin floor; here was found a quantity of cotton and brimstone burning and a slow match ignited and communicating with the magazine, which contained sixteen casks of powder.