what is the purpose of a flying buttress
Flying buttress The defining, functional characteristic of a flying buttress is that it is not in contact with the wall it supports, like a traditional buttress, and so transmits the lateral forces across the span of intervening space between the wall and the pier. To provide lateral support, flying-buttress systems are composed of two parts: (i) a massive pier, a vertical block of masonry situated away from the building wall, and (ii) an arch that bridges the span between the pier and the wall — either a segmental arch or a quadrant arch — the flyer of the flying buttress.[2]
Aviation photography Air-to-air photography is the art of photographing aircraft in the air, while using another aircraft as a photo platform.[1] The subject aircraft is photographed while both aircraft are in flight. This allows the photographer to position the subject in specific locations and angles to get the most desirable shot. Some things that must be considered to achieve best results are lighting and background. Proper lighting is achieved through correct placement of the aircraft relative to the sun, and is accomplished flying only at certain times of the day and/or by flying at a heading that lines the sun up on the subject aircraft properly. The background can highlight or distract from the subject and must be carefully considered when taking shots. Air-to-air photography uses include commercial use and advertising.