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Historically, buttresses have been used to strengthen large walls or buildings such as churches. Flying buttresses consist of an inclined beam carried on a half arch that projects from the walls of a structure to a pier which supports the weight and horizontal thrust of a roof, dome or vault.
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<h3>The main instruments of the rondalla are the banduria, octavina, laud, guitar, and bass.</h3>
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the light will bounce off and go to another serface
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