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Growing to 60 cm (24 in) tall by 30 cm (12 in) wide, it is an herbaceous perennial with dark green leaves and blue flowers in late summer. A notable feature of the plant is the flower bud, which swells like a balloon before fully opening. [4] The five petals are fused together into a bell shape at the base, like its relatives, the campanulas.
Balloon rockets work because the elastic balloons contract on the air within them, and so when the mouth of the balloon is opened, the gas within the balloon is expelled out, and due to Newton's third law of motion, the balloon is propelled forward. This is the same way that a rocket works.
The mooring systems contain a large winch with 25,000 feet (7,600 m) of tether cable. Operational availability is generally limited only by the weather (60 percent standard) and routine maintenance downtime. The aerostats are stable in winds below 65 knots (120 km/h). Aerostat and equipment availability averages more than 98 percent system-wide.
High-altitude balloons or stratostats are usually uncrewed balloons typically filled with helium or hydrogen and released into the stratosphere, generally attaining between 18 and 37 km (11 and 23 mi; 59,000 and 121,000 ft) above sea level. In 2013, a balloon named BS 13-08 reached a record altitude of 53.7 km (33.4 mi; 176,000 ft). [1]
2023 Latin America balloon incident: A Chinese high-altitude balloon flew over Costa Rica, Colombia, and Venezuela. A spokesperson for the Chinese government confirmed the balloon was theirs and said that it was used for "flight tests" and was blown off-course. [20] February 9, 2023 February 10, 2023 USAF F-22. Alaska (North Slope)
Modern hot air ballooning was born in 1960, when Ed Yost launched a balloon with a new nylon envelope and propane burner system of his own invention. [5] Yost's first balloon was basketless, with nothing but a seat for him to ride on, but in a few years he and other balloon enthusiasts would develop balloons much like the ones used today.