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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]
Since both ballast and gas are finite, there is a limit to how long a variable-volume balloon can compensate in order to stabilize its altitude. In contrast, a superpressure balloon experiences smaller changes in altitude without compensation maneuvers. [2] Because the volume of the balloon is more constrained, so is the volume of air displaced ...
Do not use metallic ribbon with helium-filled balloons; Although the law was put into effect in 1990, the issue of foil balloons being a hazard resurfaced in 2008. A senate bill was proposed to ban the sale of all foil balloons by the year 2010 due to the increased number of power outages. [citation needed] The bill was California Senate Bill 1499.
Feb. 12—The Public Service Company of New Mexico has released a reminder to keep Mylar balloons away from power lines this Valentine's Day. "Mylar balloons are made of metallic materials that ...
Feb. 12—Love is in the air this week, but power providers are asking New Mexicans to keep it away from their lines. Mylar balloons, those shiny tokens of affection often sent to sweethearts on ...
The skies over New Mexico are be filled with balloons as the area kickstarts celebrations for the Albuquerque International Balloon Fiesta. Other events across the week will include a gas balloon ...
Tethered Aerostat Radar System in New Mexico. The first aerostats were assigned to the United States Air Force in December 1980 at Cudjoe Key, Florida. During the 1980s, the U.S. Customs Service operated a network of aerostats to help counter illegal drug trafficking. Their first site was built at High Rock, Grand Bahama in 1984.
A dozen or so hot air balloons, some 1,600 feet above ground level, scattered a sky that soon would fill with hundreds of more balloons for the 52nd Albuquerque International Balloon Fiesta.