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barrage balloon
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weather balloon
weather balloon balloon used in the measurement and evaluation of mostly upper atmospheric conditions (see atmosphere ). Information may be gathered during the vertical ascent of the balloon through the atmosphere or during its motions once it has reached a predetermined maximum altitude. Today,... Read more |
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radiosonde
radiosonde , group of instruments for simultaneous measurement and radio transmission of meteorological data, including temperature, pressure, and humidity of the atmosphere. The instrument package is usually carried into the atmosphere by a balloon (see weather balloon ); balloon-borne radiosondes... Read more |
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balloon
balloon lighter-than-air craft without a propulsion system, lifted by inflation of one or more containers with a gas lighter than air or with heated air. During flight, altitude may be gained by discarding ballast (e.g., bags of sand) and may be lost by releasing some of the lifting gas from its... Read more |
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Ballooning
55. Ballooning (See also Aviation.) Balloon Hoax, The 1844 news story falsely reports that eight men have crossed the Atlantic in a balloon. [Am. Lit.: The Balloon Hoax in Poe] Ferguson, Samuel embarks with two others on air-borne journey over Africa. [Fr. Lit.: Five Weeks in a Balloon... Read more |
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Balloons
BALLOONS BALLOONS. "Get in a supply of taffeta and of cordage, quickly, and you will see one of the most astonishing sights in the world" (Gillispie, 1983, p, 17). These were the words of Joseph Montgolfier (1740 |
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Balloon dilatation
Balloon valvuloplasty Definition Balloon valvuloplasty, also called percutaneous balloon valvuloplasty, is a surgical procedure used to open a narrowed heart valve. The procedure is sometimes referred to as balloon enlargement of a narrowed heart valve. Purpose Balloon... Read more |
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theodolite
theodolite , calibrated optical instrument used to determine relative position in surveying , navigation, and meteorology. It is similar in construction to a surveyor's transit, consisting of a telescope fitted with a spirit level and mounted on a tripod so that it is free to rotate about its... Read more |
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Rossby waves
Rossby waves Carl-Gustav Rossby (1898–1957) was a Swedish meteorologist who worked for much of his life in the USA. In the 1930s he proposed many of the theoretical ideas which led to an understanding of the large-scale dynamics of the atmosphere.Imagine flying in a balloon at a height of... Read more |
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Joseph Michel Montgolfier
Joseph Michel Montgolfier , 1740-1810, and Jacques Étienne Montgolfier , 1745-99, French inventors, brothers. Together they invented the first practical balloon . On June 5, 1783, they sent up at Annonay, near Lyons, a large linen bag inflated with hot air; its flight covered more than a... Read more |
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