balloon(redirected from balloon glass)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.
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 container. Balloons designed for crews are used mainly for recreation, research, and adventuring; uncrewed balloons are used primarily for scientific research or surveillance.
Although interest in such a craft dates from the 13th cent., the balloon was not actually invented until the late 18th cent., when two French brothers, Joseph and Jacques Étienne MontgolfierMontgolfier, Joseph Michel
, 1740–1810, and Jacques Étienne Montgolfier
, 1745–99, French inventors, brothers. Together they invented the first practical balloon.
..... Click the link for more information. , experimented with inverted paper and cloth bags filled with heated air and, in 1783, caused a linen bag about 100 ft (30 m) in diameter to rise in the air. In the same year the Frenchmen Pilâtre de Rozier and the marquis d'Arlandes made one of the first balloon ascents by human beings, rising in a hot-air-filled captive balloon (i.e., one made fast by a mooring cable to prevent free flight) to a height of 84 ft (26 m).
In 1766 the English scientist Henry CavendishCavendish, Henry,
1731–1810, English physicist and chemist, b. Nice. He was the son of Lord Charles Cavendish and grandson of the 2d duke of Devonshire. He was a recluse, and most of his writings were published posthumously.
..... Click the link for more information. had shown that hydrogen was seven times lighter than air, and the usefulness of this gas in balloon ascension was demonstrated in Dec., 1783, by J. A. C. CharlesCharles, Jacques Alexandre César
, 1746–1823, French physicist. He confirmed Benjamin Franklin's electrical experiments, became interested in aeronautics, and was the first to use hydrogen gas in balloons.
..... Click the link for more information. of France, who with his associates successfully ascended in a hydrogen-filled balloon and traveled 27 mi (43 km) from their starting point. Later, Charles made the first solo balloon ascent. Pilâtre de Rozier developed a balloon with two gas bags, one above containing hydrogen and one below for hot air, but his attempt to fly (1785) one across the English Channel ended in death when the highly flammable hydrogen ignited. Modern Rozier balloons use helium instead of hydrogen.
The first ascent in England was made by James Tytler, a Scottish writer, in 1784, and in 1793 the French balloonist J. P. BlanchardBlanchard, Jean Pierre
, or François Blanchard
, 1753–1809, French balloonist. In 1785 he made with Dr. John Jeffries of Boston, Mass., the first crossing by air of the English Channel.
..... Click the link for more information. made an ascent at Philadelphia. Blanchard, with Dr. John Jeffries, an American physician, also made the first sea voyage by balloon, crossing the English Channel in 1784. Among the noted balloon voyages of the 19th cent. was that made by the Swedish engineer S. A. AndréeAndrée, Salomon August
, 1854–97, Swedish polar explorer, grad. Royal Inst. of Technology, Stockholm. An aeronautical engineer and head of the Swedish patent office's technical department, he was the first to attempt arctic exploration by air.
..... Click the link for more information. , who, in 1897, attempted unsuccessfully to reach the North Pole by balloon; his remains were discovered 33 years later. The helplessness of the free balloon in controlling direction led to the development of the dirigible balloon (see airshipairship,
an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola accommodating passengers, crew, and cargo.
..... Click the link for more information. ).
In the American Civil War and World War I, captive crewed balloons were used to observe troop movements and to direct gunfire. Captive, uncrewed blimplike balloons called barrage balloons were used as obstacles against low-flying aircraft in World War II, and similar tethered balloons, sometimes called aerostats, are outfitted with radar, cameras, and other instruments for use in surveillance. Today high-altitude balloons (typically filled with hydrogen) carry aloft radios and other instruments, used to transmit meteorological readings or to take photographs free from atmospheric distortion.
In 1932 the Swiss physicist Auguste PiccardPiccard, Auguste
, 1884–1962, Swiss physicist, b. Basel. He became a professor at the Univ. of Brussels in 1922. He and his twin brother Jean Felix (d. 1963) are known for their balloon ascents into the stratosphere; in Aug., 1932, Auguste ascended to 55,500 ft (16,916 m).
..... Click the link for more information. , one of the major figures in 20th-century ballooning, ascended in a balloon with a sealed spherical gondola to a height of 55,500 ft (17,000 m); since then manned balloons have reached heights of 100,000 ft (30,500 m) and unmanned balloons have exceeded 140,000 ft (42,500 m). The Americans Ben Abruzzo, Maxie Anderson, and Larry Newman made the first transatlantic crossing in 1978, and in 1981 Abruzzo, Newman, Rocky Aoki, and Ron Clark crossed the Pacific. In 1999, Bertrand Piccard, Auguste's grandson, and Briton Brian JonesJones, Brian,
1947–, British balloonist, b. Bristol. A former Royal Air Force pilot, he entered the world of ballooning in the 1980s, and in 1997 became an organizer for the attempt of the British-built, Swiss-sponsored Breitling Orbiter 3
..... Click the link for more information. made the first nonstop balloon flight around the world; the American Steve FossettFossett, Steve
(James Stephen Fossett), 1944–2007, American investment banker and adventurer, b. California. After becoming a multimillionaire as a stockbroker and investment consultant, he began a second career as a sports adventurer.
..... Click the link for more information. completed the first nonstop solo circumnavigation in 2002.
In contemporary sporting balloons, which use air heated by a small gas-fired burner, altitude is controlled by varying the temperature of the heated air. Gas bags made with space-age materials are more durable and weigh far less than the traditional silk; heaters have similarly become more efficient. While ballooning remains dangerous, the hot-air balloon's slow response time offers a unique sensation of effortless motion through the atmosphere.
See A. Hildebrandt, Balloons and Airships (1976); J. P. Jackson and R. J. Dichtl, The Science and Art of Hot Air Ballooning (1977); B. Piccard and B. Jones, Around the World in 20 Days (1999); R. Holmes, Falling Upward: How We Took to the Air (2013).
What does it mean when you dream about a balloon?
Balloons are often used to celebrate someone or something. In dreams they sometimes also represent the freeing and releasing of feelings or creative ideas, while the strings keep them from flying away. A deflated balloon may indicate disappointment.