IV.—NOTED AIR VOYAGES.
Blanchard, the supposed inventor of the parachute, with the American, Dr. Jeffries, were the first to cross the channel from England to France. M. Charles, the inventor of the gas balloon, and one of the earliest and most enthusiastic advocates of ærostation, made extensive voyages. Madame Thible, of Lyons, was the first of her sex who trusted herself to the elastic element. Crosbie, who passed over the sea from Ireland to England, came near losing his life; for, the balloon, being struck with great force by an adverse current of air, and most of the gas escaping, tore over the raging waters at a fearful speed, until the courageous man was rescued, near the English coast, by a ship happening in his way. But the view which he had enjoyed, seeing both countries at once, was sublime beyond description, and compensated him for all the danger. He had been at such a hight that, although the July sun melted everything below, his ink was a lump of ice, and the quicksilver in the instruments had sunk almost out of sight.
The battle of Fleurus, in 1794, was won by the French over the Austrians principally through the aid of balloon reconnoitering; and similar service was occasionally performed by the balloon in our own war. The favorably known Italian, Count Zambeccari, who added many improvements to this art, and created great interest in the principal countries of Europe, made an ascension, in 1803, with two friends, at Bologna. The three alighted in the Adriatic sea and were picked up by fishermen, while the balloon, free from weight, rose again and was carried by the wind to the Turkish fort Vihacz, where the commander, believing it a present "sent from heaven," had it cut up in small pieces and divided amongst his friends as amulets. But quite a "reverse opinion" was generally entertained by most of the ignorant Christian country people, when the huge monster happened to fall amongst them for the first time; and their comparison of it to the "evil one" is excusable when we consider the peculiar smell of the escaping gas, after their attack upon it with pitchforks and similar agricultural implements.
Among other remarkable ascensions is that of Guy Lussac, who reached the prodigious hight of nearly four and a half miles. This was exceeded, though, by another scientific æronaut, James Glaisher, in 1862, who, with a companion, mounted the great altitude of seven miles—over 36,000 feet; but as he was insensible for some minutes after reaching the elevation of 29,000 feet, the highest ever attained by human beings, their calculations could only be approximated. The mercury in the hygrometer—a delicate instrument for measuring the moisture in the atmosphere—had fallen below the scale, while they were rising more than 1000 feet per minute. There are instances of balloons that have shot upwards at the rate of fifty feet per second, or much over half a mile per minute; but, generally, even twenty feet per second is a rare occurrence. And here might be mentioned that, since the late serious loss of several French scientists by asphyxia, or cold on their unfortunate ascension, the problem of maintaining life in the highest regions of the atmosphere has been solved in France. With a certain apparatus, man could manage to live comfortably nearly ten miles above the level of the sea, while, ordinarily, two miles is the most.
As to horizontal speed, perhaps the fastest time on record was made by Garnerin and Snowdon, from London to Colchester, some eighty miles, in one hour, or about 110 feet per second, almost swifter than an eagle flies; and another balloon went from Paris across the Alps, to the vicinity of Rome, in twenty-two hours, making over fifty miles per hour, considering its zig-zag travel. The reason for such great speed is, that the different air currents travel far faster in the upper regions than below, where the velocity of the wind is seldom over twenty miles per hour; and yet, were it not for the continually changing scenery, the æronaut would imagine himself stationary.
The shortest trip, perhaps, in the annals of this art, both as to hight and distance, was made, a few years ago, by a gymnast, at Woodward's Gardens, that most beautiful pleasure resort in this city. The little disobliging monster went lazily, and with great difficulty, over the fence and capsized promptly on the other side, leaving the trapeze-man hanging, by the seat of his unmentionables, on the top of it in an uncomfortable position, but no bones were broken.
V.—ABSENCE OF DANGER.
It is erroneous to suppose that ærial voyages are fraught with even ordinary danger; on the contrary, travel by sea and land is far more so; for, although thousands of assensions have been made, but very few persons have met with accidents, in fact, a less number by far comparatively, than by any other profession or mode of locomotion; and, whenever such has happened, gross carelessness or ignorance was often the cause.