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A large air vortex cannon, with a 9 feet (2.7 m) wide barrel and a displacement volume of 2,873 US gallons (10.88 m 3) was built in March 2008 at the University of Minnesota, and could blow out candles at 180 feet (55 m). [6] [7] In 2012, a large air vortex cannon was built for Czech Television program Zázraky přírody (lit. ' Wonders of ...
Unlike the cylinder desk, the rolltop desk could be mass-produced rather easily since the simple wooden slats could be turned out very fast in a uniform way. In contrast, the wooden section of a cylinder had to be treated with great pains to keep its form perfectly over time, lest it warp or bend, and make it impossible to retract or extend.
The New Yankee Workshop featured the construction of woodworking projects, including workshop accessories, architectural details and furniture projects ranging from simple pieces to complex, high-quality reproductions of antique classic furniture.
Johnston performed the barrel roll during the fly-by, reversed course with a chandelle, and performed a second barrel roll on the way back. [1] The following Monday, Allen called Johnston to his office and asked what he thought he was doing, to which he responded with "I was selling airplanes," and explained the maneuver was not hazardous. [ 1 ]
Since the beginning of the 1970s, the 40 mm Bofors L/60s have been used in the United States Air Force's Lockheed AC-130 gunships in the air-to-ground role. [46] Between 2006 and 2012, there were plans to remove these and the 20 mm M61 Vulcans from newer AC-130U variants and replace them with 30 mm autocannons.
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10 — Gun barrel. One particular light-gas gun used by NASA uses a modified 40mm cannon for power. The cannon uses gunpowder to propel a plastic (usually HDPE) piston down the cannon barrel, which is filled with high-pressure hydrogen gas. At the end of the cannon barrel is a conical section, leading down to the 5-mm barrel that fires the ...
The Pattern 1914/15 was mounted on a central pivot with a hydraulic recoil cylinder underneath the barrel. The Pattern 1914/15 was the first gun to be equipped with a semi-automatic, vertical inertial wedge breech [ 2 ] and fired 76.2 × 385 mm R, fixed quickfire ammunition.