balloon

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References in classic literature ?
By giving the balloon these cubic dimensions, and filling it with hydrogen gas, instead of common air--the former being fourteen and a half times lighter and weighing therefore only two hundred and seventy-six pounds--a difference of three thousand seven hundred and twenty-four pounds in equilibrium is produced; and it is this difference between the weight of the gas contained in the balloon and the weight of the surrounding atmosphere that constitutes the ascensional force of the former.
But the doctor, in carrying out a project known only to himself, resolved to fill his balloon only one-half; and, since he had to carry forty-four thousand eight hundred and forty-seven cubic feet of gas, to give his balloon nearly double capacity he arranged it in that elongated, oval shape which has come to be preferred.
This arrangement offered the advantage, that if gas had to be let off, so as to descend, that which was in the outer balloon would go first; and, were it completely emptied, the smaller one would still remain intact.
His impression was that he was bound to come down somewhere, and that then, if he wasn't smashed, some one, some "society" perhaps, would probably pack him and the balloon back to England.
He became aware of a splendid golden light upon the balloon above him, and of a new warmth in the blue dome of the sky.
The first time the moonlit clouds were white and dense, and the shadow of the balloon ran athwart them like a dog that followed; afterwards they seemed thinner.
Oz ordered the balloon carried out in front of the Palace, and the people gazed upon it with much curiosity.
The balloon was by this time tugging hard at the rope that held it to the ground, for the air within it was hot, and this made it so much lighter in weight than the air without that it pulled hard to rise into the sky.
went the ropes, and the balloon rose into the air without her.
Mason of the ultimate success of his invention, that he determined to construct immediately, if possible, a balloon of sufficient capacity to test the question by a voyage of some extent - the original design being to cross the British Channel, as before, in the Nassau balloon.
The balloon is composed of silk, varnished with the liquid gum caoutchouc.
In a balloon sufficiently perfect to retain its contents of coal-gas unaltered, in quantity or amount, for six months, an equal quantity of hydrogen could not be maintained in equal purity for six weeks.