But hydrogen possesses an ascensional force estimated at 1,100 grams per cubic meter. ❋ Unknown (2003)
The balloon, gradually losing its ascensional force, approached the ground; the anchors ran along until, at last, one of them caught in the fissure of a rock, and the balloon remained motionless. ❋ Unknown (2003)
Joe, slipping nimbly down the tree, carefully attached the anchor, and the doctor left his cylinder at work to a certain degree in order to retain sufficient ascensional force in the balloon to keep it in the air. ❋ Unknown (2003)
If you will give a column of air an ascensional movement of forty-five meters a second, a man can support himself on the top of it if the soles of his boots have a superficies of only the eighth of a square meter. ❋ Unknown (2003)
The latter did not appear to have suffered from the storm; the silk and the gutta percha had resisted wonderfully, and, upon estimating the exact height of the ground and the ascensional force of the balloon, our aeronaut saw, with satisfaction, that the hydrogen was in exactly the same quantity as before. ❋ Unknown (2003)
The ascensional force of the new balloon was then about three thousand pounds, and, in adding together the weight of the apparatus, of the passengers, of the stock of water, of the car and its accessories, and putting aboard fifty gallons of water, and one hundred pounds of fresh meat, the doctor got a total weight of twenty-eight hundred and thirty pounds. ❋ Unknown (2003)
Her dimensions allowed of her rising to the greatest height a balloon could attain; her impermeability enabled her to remain for an indefinite time in the atmosphere; her solidity would defy any dilation of gas or violence of wind or rain; her capacity gave her sufficient ascensional force to lift with all their accessories an electric engine that would communicate to her propellers a power superior to anything yet obtained. ❋ Unknown (2003)
“Huzza!” roared Joe, as the balloon — thanks to its ascensional force — shot up higher into the sky, with increased rapidity. ❋ Unknown (2003)
The doctor was aware that, by the loss of the hydrogen in the first balloon, the ascensional force at his disposal was now reduced to about nine hundred pounds. ❋ Unknown (2003)
Thus the Victoria found herself balanced, and her ascensional force insufficient to raise her. ❋ Unknown (2003)
If I augment the temperature by 180 degrees, the gas will dilate 180480 and will displace 16,740 cubic feet more, and its ascensional force will be augmented by 1,600 pounds. ❋ Unknown (2003)
“We shall have mountains to pass, and that will be difficult to do, since I cannot augment the ascensional force of the balloon, even with the greatest possible heat that I can produce.” ❋ Unknown (2003)
At this moment the ascensional force of the balloon increased prodigiously, and Ferguson, Kennedy, and Joe, waved a last good-by to their friends. ❋ Unknown (2003)
The ascensional movement did not cease until the “Go-Ahead” had reached a height of fourteen thousand feet. ❋ Unknown (2003)
In a very little while, the gas expanded under the action of the heat, and the balloon took a very decided ascensional movement. ❋ Unknown (2003)
But the management of two balloons would, necessarily, be very difficult, in view of the problem how to keep them both at an equal ascensional force. ❋ Unknown (2003)
The doctor, according to very accurate calculations, found that, including the articles indispensable to his journey and his apparatus, he should have to carry a weight of 4,000 pounds; therefore he had to find out what would be the ascensional force of ❋ Unknown (2003)
If, then, I force the temperature 18 degrees, the hydrogen of the balloon will dilate 18480 or 1614 cubic feet, and will, therefore, displace 1614 more cubic feet of air, which will increase its ascensional power by 160 pounds. ❋ Unknown (2003)
The doctor, by means of a temperature increased to one hundred and eighty degrees, gave the balloon a fresh ascensional force of nearly sixteen hundred pounds, and it went up to an elevation of more than eight thousand feet, the greatest height attained during the journey. ❋ Unknown (2003)
Dick had better remain, therefore, in the car, and keep the cylinder warm so as to secure a sufficient ascensional force for the balloon. ❋ Unknown (2003)
