Spherical ballooning, some of the requirements (1917)
McCullough, Paul James, 1881- · Saint Louis, The Mangan printing company · leaf 27
SOME OF THE REQUIREMENTS 21 OSCILLATION Vertical oscillation of a balloon is generally caused by variation in temperature of the gas. At night the temperature of the air generally diminish- es as the altitude becomes greater, this condition remaining relatively constant throughout the night. … Doited line slows normal oscillation FIG. 1 Assume that at an altitude of 1,000 feet the Change in Temperatures equilibrium is perfect, after which, due to some ir- regular air movement, the balloon rises to an alti- Rate of tude of lower temperature, the gas will, of course, Oscillation contract,…
Balloons
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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