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.
The balloon is furnished besides with a grapnel, and a guide-rope ; which latter is of the most indispensable importance.
As soon as the balloon quits the earth, it is subjected to the influence of many circumstances tending to create a difference in its weight ; augmenting or diminishing its ascending power.
It is merely a very long rope which is suffered to trail from the car, and the effect of which is to prevent the balloon from changing its level in any material degree.
Osborne's seat, about a mile from Penstruthal, in North Wales ; and at 7 minutes past 11, every thing being ready for departure, the balloon was set free, rising gently but steadily, in a direction nearly South ; no use being made, for the first half hour, of either the screw or the rudder.
The balloon was unusually steady, and looked beautifully.
One single gale such as now befriends us - let such a tempest whirl forward a balloon for four or five days(these gales often last longer) and the voyager will be easily borne, in that period, from coast to coast.
Crossing the ocean in a balloon is not so difficult a feat after all.
Just before day, we were all somewhat alarmed at some odd noises and concussions in the balloon, accompanied with the apparent rapid subsidence of the whole machine.
We have crossed the Atlantic - fairly and easily crossed it in a balloon
He had never imagined before what a big, light, wallowing thing a balloon was.
If she is dead," he said, slowly lifting a fist towards the balloon above him, and speaking in an immense tremulous bellow--"if she is dead, I will r-r-rend the heavens like a garment
And the balloon, released from the twenty-five stone or so of Mr.
And there were several navigable gas air-ships, not to mention balloons, in the air.