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Cahill's book, A Saint on Death Row: The Story of Dominique Green, represented a departure from the Hinges of History series. It was both the story of Dominique Green, a young man from Houston who was on death row in Texas, and of the effect that knowing him had on Cahill. Arrested at age eighteen for the fatal shooting of a man during a ...
Cardea or Carda was the ancient Roman goddess of the hinge (Latin cardo, cardinis), Roman doors being hung on pivot hinges.The Augustan poet Ovid conflates her with another archaic goddess named Carna, whose festival was celebrated on the first day of June and for whom he gives the alternative name Cranê or Cranea, a nymph.
It is greatly elongated along the hinge line, which extends outward to form sharp points. [2] This gives them a fin- or wing-like appearance. The apex area (umbo) of the pedicle valve contains a small fold for the pedicle. [2] Mucrospirifer lived in muddy marine sediments, and were attached to the sea floor via the pedicle. The shell sometimes ...
An ornate brass door hinge A barrel hinge. A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation, with all other translations or rotations prevented; thus a hinge has one degree of freedom.
Spiriferida is an order of extinct articulate brachiopod fossils which are known for their long hinge-line, which is often the widest part of the shell. In some genera (e.g. Mucrospirifer) it is greatly elongated, giving them a wing-like appearance. They often have a deep fold down the center of the shell.
The hinges come to a point, a superficial resemblance to many (phylogenetically unrelated) bivalve mollusk shells. The loss of the hinge line was an important evolutionary innovation, rhynchonellids being the first truly non-strophic shells with a purely internal articulation (teeth-sockets).
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The trigoniid hinge, showing interior view of the left valve (A) and right valve (B) of Trigonia. The notation 2, 3a, 3b, 4a, 4b and 5a refer to the numbers assigned to individual teeth. "aa" and "pa" are the anterior and posterior muscle scars and "ppr" is the scar left by the posterior pedal retractor muscle.