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Ballooning
Ballooning may refer to: * Hot air ballooning * Balloon (aeronautics) * Ballooning (spider) * Ballooning degeneration, a disease * Memory ballooning In computing, memory ballooning is a technique that is used to eliminate the need to overcommit host memory used by virtual machines (VMs) by letting each VM effectively "give back" unused pages of irtualmemory. To implement memory ballooning, ... See also * Balloon (other) {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballooning (spider)
Ballooning, sometimes called kiting, is a process by which spiders, and some other small invertebrates, move through the air by releasing one or more Gossamer (spider silk), gossamer threads to catch the wind, causing them to become airborne at the mercy of air currents and electric fields. A 2018 study concluded that electric fields provide enough force to lift spiders in the air, and possibly elicit ballooning behavior. This is primarily used by spiderlings to disperse; however, larger individuals have been observed doing so as well. The spider climbs to a high point and takes a stance with its abdomen to the sky, releasing fine silk threads from its spinneret until it becomes aloft. Journeys achieved vary from a few metres to hundreds of kilometres. Even atmospheric samples collected from balloons at five kilometres altitude and ships mid-ocean have reported spider landings. Ballooning can be dangerous (due to predators, and due to the unpredictable nature of long-distance ballo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balloon (aeronautics)
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 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, 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 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 balloon is a fabric envelope filled with a gas t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballooning Degeneration
In histopathology, ballooning degeneration, formally ballooning degeneration of hepatocytes, is a form of liver parenchymal cell (i.e. hepatocyte) death. The name is derived from the fact that the cells undergoing this form of cell death increase in size (balloon). It is generally considered a form of apoptosis, and is a descriptor used in the context of inflamed fatty liver ( steatohepatitis) (which may be due to obesity or alcohol), as well as viral hepatitis. The histomorphological appearance of ballooning degeneration is not pathognomonic for steatohepatitis, but usage of the term is generally confined to the condition, i.e. in the context of other histopathological findings the label ''ballooning degeneration'' is not used for cell death with cytoplasmic clearing and cell swelling. Appearance Ballooned cells are typically two to three times the size of adjacent hepatocytes and are characterized by a wispy cleared cytoplasm on H&E stained sections. They can be di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Air Ballooning
Hot air ballooning is the recreational and competitive Extreme sport, adventure sport of flying hot air balloons. Attractive aspects of balloon (aircraft), ballooning include the exceptional quiet (except when the propane burners are firing), the lack of a feeling of movement, and the bird's-eye view. Since the balloon moves with the direction of the winds, the passengers feel absolutely no wind, except for brief periods during the flight when the balloon climbs or descends into air currents of different direction or speed. Hot air ballooning has been recognized by Fédération Aéronautique Internationale (FAI) as the safest air sport in aviation, and fatalities in hot air balloon accidents are rare, according to statistics from the National Transportation Safety Board (NTSB). History First manned flight The first clearly recorded instance of a balloon carrying passengers used hot air to generate buoyancy and was built by the brothers Joseph-Michel and Jacques-Etienne Montg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balloon (other)
A balloon is a flexible container for (partially or fully) confining a gas. Balloon may also refer to: Arts, entertainment, and media Films * ''Balloon'' (2017 film), a Tamil film by Sinish starring Jai, Anjali, and Janani Iyer * ''Balloon'' (2018 film), a German film about the East German balloon escape * ''Balloon'' (2019 American film), a 2019 U.S. short film * ''Balloon'' (2019 Chinese film), a Chinese drama film Music Artists * Balloon (band), English musical duo * Keina Suda, Japanese musician also known under the name Balloon Songs * "Balloons" (song), by Foals, 2007 *"Balloons", by TVXQ from '' "O"-Jung.Ban.Hap.'', 2006 *"Balloon", by Tyler, The Creator from ''Chromakopia'', 2024 *"99 Red Balloons", "99 Luftballons", by Nena, 1983 Other arts, entertainment, and media * Balloon (game) * ''Balloon'' (Merse), 1878 painting by Pál Szinyei Merse *''Balloon'', a TV ident for BBC Two from 1993 to 1997 *BBC One 'Balloon' idents, better known as simply "Balloon", a series of te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memory Ballooning
In computing, memory ballooning is a technique that is used to eliminate the need to overcommit host memory used by virtual machines (VMs) by letting each VM effectively "give back" unused pages of irtualmemory. To implement memory ballooning, the virtual machine's kernel implements a "balloon driver" that allocates unused memory within the VM's address space into a pool of memory (the "balloon"), which makes that memory unavailable to other processes on that VM. The balloon driver doesn't use the pool of memory; instead it tells the host operating system's hypervisor which memory addresses are in that pool (unused). The host operating system then unmaps physical memory from those memory pages (with no need to copy them to secondary storage). The released pages of physical memory return to the host machine's pool of available RAM, and the host machine can use them to keep other virtual machines in physical memory and/or to cache secondary storage. Depending on the amount of memo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
