Fire-damp and dust explosions are caused by the presence of marsh-gas in sufficient quantity to form an explosive mixture, or by a mixture of small percentages of marsh-gas and coal-dust, and in some cases by the presence of coal-dust alone in the air of the mine.
The terrible effects of fire-damp have led to the adoption of elaborate systems of ventilation, as the most effective safeguard against these explosions is the dilution and removal of the fire-damp as promptly and completely as possible.
Explosions ripped the ground from beneath them and blinded her.
Her ears still rung from the explosions lighting up the sky.
The mansion rocked as Dusty's first set of explosions went off.
Beyond a nearby mountain range, lights and explosions lit up both the sky and the air between earth and sky.
The explosions were coming faster, and he launched to his feet, ignoring the bruises and scrapes along his side.
He watched explosions wrack his planet until they rose high enough that the toxic dust storm he'd started marred the surface of the planet from view.
He looked up instinctively, sensing something different about this thunder. It didn't sound like the rumbling thunder he'd heard in the mortal world. It sounded like an explosion in the sky. The jungle canopy blocked his view, so he leapt up to catch the branch of the nearest tree. He scaled the tree quickly, stopping only when he broke through the layers of leaves. More tiny explosions came, and he twisted to see what they were.
She heard what sounded like mini-explosions and fighting.
The lakes of Albano and Nemi were probably formed by volcanic explosions at the margin of the great crater; though a view has also been expressed that the basins are the result of subsidence.
Many workers following certain occupations show pigmented scars due to the penetration of carbon and other pigments from superficial wounds caused by gunpowder, explosions, &c.
In coal-mines we have to deal with " fire-damp " or marsh gas, and with inflammable coal dust, which form explosive mixtures with air and frequently lead to disastrous explosions resulting in great loss of life.
The gases produced by such fire-damp or dust explosions contain carbon dioxide and carbon monoxide in large proportion, and the majority of the deaths from such explosions are due to this " after-damp " rather than to the explosion itself.
In addition mining operations are subject to interruption and added expense from explosions, mine fires, flooding, and the caving-in of the workings.
As will be seen from this diagram the most serious source of death and injury is not found in mine explosions, but in the fall of rocks and mineral in the working places.
To guard against explosions from this cause it is necessary to use explosives in moderate quantities and to see that the blast-holes are properly placed, so that the danger of blown-out shots may be lessened.
The use of such explosives decreases to some extent the danger from dust explosions; but experiment shows that no efficient explosive is absolutely safe, if used in excessive quantity, or in an improper manner.
Having determined to make chemistry his profession, at the age of fifteen he entered the shop of an apothecary at Appenheim, near Darmstadt; -but he soon found how great is the difference between practical pharmacy and scientific chemistry, and the explosions and other incidents that accompanied his private efforts to increase his chemical knowledge disposed his master to view without regret his departure at the end of ten months.
The outbreak was preceded byan earthquake of some severity, after which about 20 explosions took place.
Methods for enabling miners to penetrate into workings where the atmosphere is totally irrespirable have come into use for saving life after explosions and for repairing shafts and pit-work under water.
Dr P. Wolff has found that when this is used on the large scale there is a risk of the ammonia present in the acetylene forming traces of chloride of nitrogen in the purifying-boxes, and as this is a compound which detonates with considerable local force, it occasionally gives rise to explosions in the purifying apparatus.
It was found, however, that if the cooling be not sufficiently rapid explosions occurred owing to the combination of the metal with carbon monoxide (produced in the oxidation of the charcoal) to form the potassium salt of hexaoxybenzene.
In several of these it appears not unlikely that the recurrent explosive liberations of energy in the muscle tissue are not secondary to recurrent explosions in nerve cells, but are attributable to decompositions arising sua sponte in the chemical substances of the muscle cells themselves in the course of their living.
Composition meant for him intense absorption in his work; solitude and quiet were essential; and he resented interruptions by grotesque explosions of humorously exaggerated wrath.
Its eruptions are not on a grand scale, but small outbursts of lava and explosions of steam occur at frequent intervals, and at longer intervals more violent explosions in which the molten rock is thrown 2000 ft.
In 1811 he discovered chloride of nitrogen; during his experiments serious explosions occurred twice, and he lost one eye, besides sustaining severe injuries to his hand.
He needed to draw this out as long as possible, so Jimmy's explosions took out Talon and all the vamps if he couldn't.
He set the timer for the explosions to start on the opposite side of the planet, startled when the first went off as soon as he gave the order.
Because apparently, to humans, explosions were more interesting than the fact they were watching him – a creature that hunted humans – cook their food.
"Sex and explosions," he replied.