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In the Helicopter Quartet in particular this is manifested spatially, as the physical separation of the players from the audience and among themselves, circling in the sky in four different helicopters, is overcome through the use of audio-visual equipment, so that "only when transmitted via television screens and loudspeakers in the concert ...
A vacuum airship, also known as a vacuum balloon, is a hypothetical airship that is evacuated rather than filled with a lighter-than-air gas such as hydrogen or helium. First proposed by Italian Jesuit priest Francesco Lana de Terzi in 1670, [ 1 ] the vacuum balloon would be the ultimate expression of lifting power per volume displaced.
The Sioux is a single-engine single-rotor three-seat observation and basic training helicopter. In 1953 the Bell 47G design was introduced. It can be recognized by the full "soap bubble" canopy (as its designer Arthur M. Young termed it), [7] exposed welded-tube tail boom, saddle fuel tanks and skid landing gear.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
The Bell CH-146 Griffon is a multi-role utility helicopter designed by Bell Helicopter Textron as a variant of the Bell 412EP for the Canadian Armed Forces. It is used in a wide variety of roles, including aerial firepower, reconnaissance, search and rescue and aero-mobility tasks. [ 1 ]
The restricted airspace was set in place because President Joe Biden is in Delaware over the weekend. The fighter aircraft and helicopter responded to a civilian aircraft at 2:25 p.m. Saturday and ...
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