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Popcorn ceiling texture. A popcorn ceiling, also known as a stipple ceiling or acoustic ceiling, is a ceiling with one of a variety of spray-on or paint-on treatments. [1] The bumpy surface is created by tiny particles of vermiculite or polystyrene, which gives the ceiling sound-deadening properties. Mixtures are available in fine, medium, and ...
The Catalan vault (Catalan: volta catalana), also called thin-tile vault, [1] Catalan turn, Catalan arch, boveda ceiling (Spanish bóveda 'vault'), or timbrel vault, is a type of low brickwork arch forming a vaulted ceiling that often supports a floor above. It is constructed by laying a first layer of light bricks lengthwise "in space ...
The service ceiling is the maximum altitude of an aircraft during normal operations. Specifically, it is the density altitude at which flying in a clean configuration , at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a given rate of climb.
On 16 July 2014, while attending the Farnborough Airshow, Aero Vodochody presented its L-39NG project as a follow-on to its popular Aero L-39 Albatros trainer aircraft. [4] [5] By April 2015, Aero Vodochody had formed a partnership with the American defence services provider Draken International and engine manufacturer Williams International to collaborate on the L-39NG programme; under this ...
Work on what would become the Fw 189 can be traced back to February 1937 and the issuing of a specification by the German Reichsluftfahrtministerium (RLM) that called for a short-range reconnaissance aircraft that had a three-man crew and provided all-round visibility; it was also specified that the aircraft should possess about 850–900 hp (630–670 kW) of power.
The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber, the B-17 was used primarily in the European Theater of Operations and dropped more bombs than any other aircraft during World War II.
The Sistine Chapel ceiling, painted by Michelangelo between 1508 and 1512, is one of the most renowned artworks of the High Renaissance. Central to the ceiling decoration are nine scenes from the Book of Genesis of which The Creation of Adam is the best known, the hands of God and Adam being reproduced in countless imitations.
The acclaimed video was shot primarily in black and white, at a cost of $7 million. The 4:47 minute music video for "Scream" was filmed in May 1995 and was directed by Mark Romanek with choreography by Travis Payne, LaVelle Smith Jr, Tina Landon, Sacha Lucashenko, and Sean Cheesman, and the production being designed by Tom Foden. Jackson did ...