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Not a rent or a dent anywhere! The wonderful projectile was not even heated under the intense deflagration of the powder, nor liquefied, as they seemed to fear, in a shower of aluminum. The interior showed but little disorder; indeed, only a few objects had been violently thrown toward the roof; but the most important seemed not to have suffered from the shock at all; their fixtures were intact.
The profound silence was only broken by the chronometer beating the seconds. Suddenly a frightful shock was felt, and the projectile, under the impulsion of 6,000,000,000 litres of gas developed by the deflagration of the pyroxyle, rose into space. What had happened? What was the effect of the frightful shock? Had the ingenuity of the constructors of the projectile been attended by a happy result?
"Who is the tall lady who dined here yesterday with Miss Rocket, and talked so enthusiastically about woman's rights?" inquired the serious boarder of Mrs. Silvernail. "Prepared by deflagration in a crucible, one part of nitre with two of powdered tartar," proceeded Mr. Arcubus. "What do you think of that sample of mixed tobacco I gave you to try?" asked the wild boarder of another, whom Mrs.
A month after he hears of Priestley's experiments, he writes Dr. A few days later, he writes to Dr. Priestley: In the deflagration of the inflammable and dephlogisticated airs, the airs unite with violence become red-hot and, on cooling, totally disappear. The only fixed matter which remains is water; and water, light, and heat, are all the products.
These fusees were to burn in the void it is true, but oxygen would not fail them, for they would furnish that themselves like the lunar volcanoes, the deflagration of which has never been prevented by the want of atmosphere around the moon. Barbicane had therefore provided himself with fireworks shut up in little cannons of bored steel, which could be screwed on to the bottom of the projectile.
He accordingly resolved to manufacture and employ pyroxyle, although it has some inconveniences, that is to say, a great inequality of effect, an excessive inflammability, since it takes fire at one hundred and seventy degrees instead of two hundred and forty, and lastly, an instantaneous deflagration which might damage the firearms.
"Nothing is more simple, certainty," said Morgan. "What is more, pyroxyle is not damaged by moisture, a precious quality in our eyes, as it will take several days to load the cannon. Its inflammability takes place at 170° instead of at 240° and its deflagration is so immediate that it may be fired on ordinary gunpowder before the latter has time to catch fire too." "Perfect," answered the major.
The admirable projectile was not hurt by the intense deflagration of the powders, instead of being liquefied, as it was feared, into a shower of aluminium. In the interior there was very little disorder on the whole. A few objects had been violently hurled up to the roof, but the most important did not seem to have suffered from the shock. Their fastenings were intact.
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