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5,000 year-old triskelion on an orthostat at Newgrange. The triple spiral symbol, or three-spiral volute, appears in many early cultures: the first appeared in Malta (4400–3600 BCE); the second in the astronomical calendar of the megalithic tomb of Newgrange in Ireland built around 3200 BCE; [13] as well as on Mycenaean vessels.
The middle leg is square throughout its length, while the outer legs are thinner at the top, flaring towards the bottom. Held together, the three legs thus form a dovetail shape. The lewis hole seating is undercut (similar to a chain-linked lewis hole) to match its profile. The first outer leg is inserted into the lewis hole, followed by the ...
Sicily; Trinacria [1]: Use: Civil and state flag: Proportion: 13:20 (as shown above), 2:3 or 3:5: Adopted: 4 January 2000 (): Design: Divided diagonally from the upper hoist-side corner; the upper triangle is red and the lower triangle is yellow; in the center is the Sicilian triskelion featuring the winged head of Medusa with three ears of wheat protruding from it.
A flitch beam (or flitched beam) is a compound beam used in the construction of houses, decks, and other primarily wood-frame structures. Typically, the flitch beam is made up of a vertical steel plate sandwiched between two wood beams, the three layers being held together with bolts. In that common form it is sometimes referenced as a steel ...
The jetty beams or joists conform t floor dimensions above, but are at right angles to the jetty-plates that conform to the shorter dimensions of "roof" of the floor below. Jetty beams are mortised at 45° into the sides of the dragon beams. They are the main constituents of the cantilever system, and determine how far the jetty projects.
See photos of the massive fires below: Water is dropped on the advancing Palisades Fire by helicopter in the Pacific Palisades neighborhood of Los Angeles on Jan. 7. Ethan Swope—AP
True cruck or full cruck: The blades, straight or curved, extend from a foundation near the ground to the ridge. A full cruck does not need a tie beam and may be called a "full cruck - open" or with a tie beam a "full cruck - closed". [7] Base cruck: The tops of the blades are truncated by the first transverse member such as by a tie beam. [7]
The 2014 World Cup in Brazil has begun. Check HuffPost's World Cup dashboard throughout the tournament for standings, schedules, and detailed summaries of each match.