One other interesting feature was the combination of flash ignition and comparative slow pressure wave.
In both cities, some of the fires close to X were no doubt started by the ignition of highly combustible material such as paper, straw, and dry cloth, upon the instantaneous radiation of heat from the nuclear explosion.
Because the paper is more easily ignited than wood, and wood than coals; therefore the paper assists the ignition of the wood, and the wood assists the ignition of the coals.
It may also serve to diffuse the ignition through every part of the mixture; and being of more gross and fixed parts, may seem to moderate the activity of Salt-petre, and prevent too hasty rarefaction.
Turn on the ignition switch and turn the motor with the starter.
Premature ignition may be caused by deposition of carbon or soot on the walls of the cylinder; the compression being too high for the fuel used; overheating of the piston, or exhaust valve, or of some poorly-jacketed part.
He staggered to the wharf-side, dropped into the craft--saw that the ignition wire was cut!
Instantly Don cut the ignitionto avoid losing his propeller.
With the ignition key and a carburetor needle and float removed, the helicopter, tied once more to its stakes, was in no danger of being removed.
Flung out, or discharged from some outboard contrivance, their ignition powder had sent them in calculated proximity to the Dragonfly--for some deadly purpose!
He had already pointed out the ignition plugs to the Chinaman, for they, like the rest of the engine, had been heavily sprayed with water.
His ignition and throttle levers were pushed to the farthest notch.
Jim jerked throttle and ignition levers back as the orders came to his ears, and threw his lever into neutral position.
He pushed the Chinaman to one side, and rapidly ran over his ignition system.
But that alone was insufficient; with the water port still open, the pump would drive a column of fluid through the jackets, and the ignition would be again drenched.
Then Jim's practised ear told him that the ignition had given out, that the vital spark, without which the motor was useless and now deficient, had been cut off, and thus the motor had been sent adrift.
Jim promptly dropped his fingers on the quadrant where throttle and ignition levers lay, and jerked both of them up a few notches.
Once more, therefore, he jerked his levers upwards till the throttle was wide open, while the ignition was advanced to the fullest extent.
I took theignition keys, and straightened the front door as I came back in.
Young Farmer nodded and handed over the ignition keys.
Many motorists owe the ignition which keeps their engines at work to secondary batteries.
Even this great improvement in the means of ignition falls very short of exploding by voltaic electricity, which should always, when practicable, be had recourse to.
The ignition is exactly on the same principle as the central-fire shot cases now in general use, the missfires from which are certainly not more than one in a thousand, and probably not so high.
Hydrochloric acid is also produced by the ignition of certain metallic chlorides in a stream of hydrogen, especially of those metals which are easily reduced and difficultly oxidised--for instance, silver chloride.
Cavendish made this experiment on the ignition of detonating gas, at the end of the last century, in the apparatus shown in fig.
Thus, for example, it may be demonstrated, by the aid of the eudiometer, that for the ignition of detonating gas, a definite temperature is required.
Strange air-currents, failure of ignition due to lack of oxygen--how do I know?
Our own ignition is screened; but all others within the critical radius become impotent.
Twenty minutes is generally the time allowed after ignition before it is advisable to weigh.
The tungstate of ammonia requires simple evaporation on the water-bath and gentle ignition in order to cause the tungstic acid to be left in an almost pure state; possibly, it may carry a little silica.
This ignition converts the oxalate into carbonate, with evolution of carbonic oxide, which burns at the mouth of the crucible with a blue flame.
The following is another example:--A sample of malachite lost on ignition 28.
The ignition should be performed carefully at not above a low red heat.
In some cases, in which the loss on ignition does not give simply the proportion of combined water, it can be seen from the analysis to what else the loss is due; and, after a proper deduction, the amount of water can be estimated.
It is very easily reduced by ignition in hydrogen to metallic nickel.
On treating with oxalic acid, cerium, lanthanum, and didymium are precipitated as oxalates, which on ignition are converted into oxides.
It could be made to go faster, Tom knew, with another ignition system, but that was out of the question now.
Andy's ignition system failed him several times and he changed from batteries to magneto and back again in the hope of getting a little more speed out of the motor.
One of the improvements he had put in the ARROW was a new auxiliary ignition system.
Then, too, I am sure I have a better ignition system.
He overhauled the ignition system, which was the jump-spark style, cleaned the magneto and adjusted the gasoline and compression taps so that they fitted better.
Hastily kicking the hatch cover out of the way, he bent over the open engine-pit, quickly solved the puzzle of the controlling levers, accelerated the ignition and opened the throttle wide.
The monoxide is formed when the metal burns in air, but is usually prepared by the ignition of the nitrate, oxygen and oxides of nitrogen being liberated.
It can also be obtained by the ignition of an intimate mixture of the carbonate and carbon, and in small quantities by the ignition of the iodate.
The phosphorescence of the sulphide obtained by heating the thiosulphate is much increased by adding uranium, bismuth, or thorium before ignition (J.
Casciorolus, a shoemaker of Bologna, who found that after ignition with combustible substances it became phosphorescent, and on this account it was frequently called Bolognian phosphorus.
It is sure of ignition with a good primer, and may be made to burn as slowly as desired by varying the character and size of the grains.
Therefore, a small ignition charge of black powder was employed, it being put in a capsule or bag and placed next the primer.
The inventor of the gun then prepared for the French some wafers of pyroxyline canvas, which were placed next to the primer, securing thereby prompt ignition without the production of any smoke.
The advent of electrical ignition for the gaseous charges opened the way for great improvements, and the motor bicycle slowly but surely ousted its heavier three-wheeled rival.
If the water reached the machinery, troubles with the electrical ignition apparatus would result.
The ignition of gunpowder or other explosives by powder hose and Bickford’s fuze as well as by electricity, both on land and submerged under water, is taught to all officers.
Ignition of the charge of hollow projectiles, fuses of hollow projectiles, fuse with several pipes for the fire of spherical case, hand grenade fuse.
Calculation of the density of the gases of powder in a fixed space, on the hypothesis of a simultaneous ignition of the grains.
Means employed successively for loading and ignition of the charge.
Inquiry into the rapidity of ignition of charges of powder.
Sulphur dioxide, recognized by its smell and acid reaction, results from the ignition of certain sulphites, sulphates, or a mixture of a sulphate with a sulphide.
This involves still greater compression of the next layers, and so if the mixture be capable of sufficiently rapid combustion, the velocity of propagation of the ignition must continually increase.
But since the combustion is accompanied by a high increase of pressure, the adjacent, still unburnt layers are simultaneously compressed, whereby the reaction-velocity increases, and the ignition proceeds faster.
We are now in a position to form the following picture of the processes which follow upon the ignition of a combustible gas-mixture contained in a long tube.
The halogens may be estimated by ignition with quicklime, or by heating with nitric acid and silver nitrate in a sealed tube.
