|
Zero-pressure Balloons
A zero-pressure balloon (ZP) is a style of aerostatic balloon that is unsealed at its base, creating a mechanism by which lifting gas can vent out the bottom of the balloon when the balloon becomes full, allowing the balloon to float at stable altitudes. During the day the gas heats up in the sun, and at night the gas cools causing them to descend. This limits the flight time of this type of balloon. The Columbia Scientific Balloon Facility has flown more than 1,700 scientific balloons over 40 years and currently launches between 10 and 15 flights of this type of balloon per year. Operation Zero-pressure balloons are filled with a lighter-than-air lift gas at a launch site where they are held to the ground during the launch process. Because lift gas expands as a balloon ascends, they are always smaller at launch then they are at higher altitudes. When ready to launch, the balloon is released and, if filled properly, will start to rise. As the balloon rises, the lift gas withi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Super V Zero Pressure Balloon
Super may refer to: Computing * SUPER (computer program), or Simplified Universal Player Encoder & Renderer, a video converter/player * Super (computer science), a keyword in object-oriented programming languages * Super key (keyboard button) Film and television * ''Super'' (2005 film), a Telugu film starring Nagarjuna, Anushka Shetty and Ayesha Takia * ''Super'' (2010 Indian film), a Kannada language film starring Upendra and Nayantara * ''Super'' (2010 American film), a film written and directed by James Gunn, and starring Rainn Wilson and Ellen Page * "Super" (''Person of Interest''), an episode of the TV series ''Person of Interest'' Music * ''Super'' (Jão album), 2023 * ''Super'' (Pet Shop Boys album), 2016 * "Super" (Cordae song), 2021 * "Super" (Neu! song), 1972 * "Super" (Seventeen song), 2023 * "Super (1, 2, 3)", a 2000 song by Gigi D'Agostino Other uses * Hillary Super, American business executive * Súper, a Spanish professional footballer * Su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerostat
An aerostat (, via French) or lighter-than-air aircraft is an aircraft that relies on buoyancy to maintain flight. Aerostats include unpowered balloons (free-flying or tethered) and powered airships. The relative density of an aerostat as a whole is lower than that of the surrounding atmospheric air (hence the name "lighter-than-air"). Its main component is one or more gas capsules made of lightweight skins, containing a lifting gas (hot air, or any gas with lower density than air, typically hydrogen or helium) that displaces a large volume of air to generate enough buoyancy to overcome its own weight. Payload (passengers and cargo) can then be carried on attached components such as a basket, a gondola, a cabin or various hardpoints. With airships, which need to be able to fly against wind, the lifting gas capsules are often protected by a more rigid outer envelope or an airframe, with other gasbags such as ballonets to help modulate buoyancy. Aerostats are so named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balloon (aircraft)
In aeronautics, a balloon is an unpowered aerostat, which remains aloft or floats due to its buoyancy. A balloon may be free, moving with the wind, or Moored balloon, tethered to a fixed point. It is distinct from an airship, which is a powered aerostat that can propel itself through the air in a controlled manner. Many balloons have a basket, gondola (airship), gondola, or capsule suspended beneath the main envelope for carrying people or equipment (including cameras and telescopes, and flight-control mechanisms). Aerostation Aerostation is an obsolete term referring to ballooning and the construction, operation, and navigation of lighter-than-air vehicles. Tiberius Cavallo's ''The History and Practice of Aerostation'' was published in 1785. Other books were published on the subject including by Thomas Monck Mason, Monck Mason. Dramatist Frederick Pilon wrote a play with aerostation as its title. Principles A balloon is conceptually the simplest of all flying machines. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lifting Gas
A lifting gas or lighter-than-air gas is a gas that has a density lower than normal atmospheric gases and rises above them as a result, making it useful in lifting lighter-than-air aircraft. Only certain lighter-than-air gases are suitable as lifting gases. Dry air has a density of about 1.29 g/L (gram per liter) at standard conditions for temperature and pressure (STP) and an average molecular mass of 28.97 g/mol, and so lighter-than-air gases have a density lower than this. Gases used for lifting Hot air Heated atmospheric air is frequently used in recreational ballooning. According to the ideal gas law, an amount of gas (and also a mixture of gases such as air) expands as it is heated. As a result, a certain volume of gas has a lower density as its temperature increases. The temperature of the hot air in the envelope will vary depending upon the ambient temperature, but the maximum continuous operating temperature for most balloons is . Hydrogen Hydrogen, being the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia Scientific Balloon Facility
The Columbia Scientific Balloon Facility (CSBF), established in 1961 and formerly known as the National Scientific Balloon Facility (NSBF), is a NASA facility responsible for providing launch, tracking and control, airspace coordination, telemetry and command systems, and recovery services for unmanned high-altitude balloons. Customers of the CSBF include NASA centers, universities, and scientific groups from all over the world. Mission CSBF has a threefold mission: * Provide maintenance, operations and logistics support for NASA's scientific balloon program and facilities. * Provide sophisticated ground and flight systems for launch, control, data retrieval, commanding, and recovery of NASA's balloon missions. * Perform research and development to advance the capabilities of NASA's suborbital programs. History The Balloon Facility was established by Vincent E. Lally at NCAR in Boulder, Colorado in 1961 under the auspices of the National Science Foundation. It was moved to Pales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Balloon Shape
Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physical world, including life. Although humans are part of nature, human activity or humans as a whole are often described as at times at odds, or outright Anthropocentrism, separate and even superior to nature. During the advent of modern scientific method in the last several centuries, nature became the passive reality, organized and moved by divine laws. With the Industrial Revolution, nature increasingly became seen as the part of reality deprived from intentional intervention: it was hence considered as sacred by some traditions (Jean-Jacques Rousseau, Rousseau, American transcendentalism) or a mere decorum for divine providence or human history (Hegel, Marx). However, a vitalist vision of nature, closer to the pre-Socratic one, got reborn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
