Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . ceived a violent antipathy to ballooningin any form, even in its application to military purposes. Charles made his ascent with one of the brothers Roberton December 1st, 1783, in fine weather before a large con-course of people. He afterwards wrote in glowing terms of thedelight which he experienced on journeys of this kind. On thisparticular occasion they covered about 40 miles in 3f hours andarrived at Nesles, where Robert landed, while Charles contin
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . ceived a violent antipathy to ballooningin any form, even in its application to military purposes. Charles made his ascent with one of the brothers Roberton December 1st, 1783, in fine weather before a large con-course of people. He afterwards wrote in glowing terms of thedelight which he experienced on journeys of this kind. On thisparticular occasion they covered about 40 miles in 3f hours andarrived at Nesles, where Robert landed, while Charles continuedhis journey alone. He then rose to a great height, and was MONTGOLFIEKES, CHARLIERES, AND ROZIERES. 23 exposed to the unpleasant effects of the rarefied consequence of the very rapid ascent he experienced greatpain in the ears, besides suffering acutely from the cold; hetherefore opened the valve, and came to earth in 35 minutes fromthe start, at a distance of a few miles from the spot where hehad left his friend. The balloon had been satisfactorily testedin every way. In particular, the benefit of the open tube at the. Fig. 12.—A balloon in the act of landing. To the right of the basket is seenthe ballast-sand, which has just been thrown out. bottom was very evident on the occasion of the second journey,when the gas streamed out in great volumes under the diminishedpressure. After Robert had landed, he had forgotten to take onboard a corresponding quantity of ballast. At starting he hadfilled the car with as many sacks of sand as he could carry, but heforgot to give the matter further attention. It is impossible so toconstruct a balloon that the gas shall not be able to escape throughthe substance composing the walls. This is due to a property ofgases called diffusion, of which mention will be made hereafter. 24 AIESHIPS PAST AND PEE SENT. Charles balloons, which were called the Charliere, the Charlotte, and the Kobertine, had been completely success-ful, an
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