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The square has many uses, including laying out common rafters, hip rafters and stairs. [1] It has a diagonal scale, board foot scale and an octagonal scale. On the newer framing squares there are degree conversions for different pitches and fractional equivalents. Framing squares may also be used as winding sticks.
Japan's Hi-Vision originally started with a 5:3 (= 15:9) ratio but converted when the international standards group introduced a wider ratio of 5 + 1 ⁄ 3 to 3 (= 16:9). Many digital video cameras have the capability to record in 16:9 (= 4 2 :3 2 ), and 16:9 is the only widescreen aspect ratio natively supported by the DVD standard.
Framing square, or steel square, or carpenter's square, or roofing square Originally designed for timber framing, a framing square is made from a single flat piece of metal or polymer to a standardised design with a long, wide blade and at 90° to that a shorter, narrower tongue. It can also be used for measuring lengths and for calculating angles.
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Trinity Square Video was founded 1971 in the basement of the Toronto Church of the Holy Trinity by artists for the purpose of making video equipment easily accessible during the 1970s, a time when basic equipment was prohibitively expensive for independent artists.
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