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Horseshoe shape is a shape in which the length of the opening is approximately between a third or a quarter of a circle's circumference. [1] It therefore resembles a horseshoe. The shape is sometimes described as keyhole, omega-shaped or moon-like. [2] It occurs most frequently in the horseshoe that gives it its name.
Horseshoe arch. The horseshoe arch (Arabic: قوس حدوة الحصان; Spanish: arco de herradura), also called the Moorish arch and the keyhole arch, is a type of arch in which the circular curve is continued below the horizontal line of its diameter, so that the opening at the bottom of the arch is narrower than the arch's full span.
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Hobnailed boots (in Scotland "tackety boots") are boots with hobnails (nails inserted into the soles of the boots), usually installed in a regular pattern, over the sole. They usually have an iron horseshoe-shaped insert, called a heel iron, to strengthen the heel, and an iron toe-piece.
The horseshoe map was designed to reproduce the chaotic dynamics of a flow in the neighborhood of a given periodic orbit. The neighborhood is chosen to be a small disk perpendicular to the orbit . As the system evolves, points in this disk remain close to the given periodic orbit, tracing out orbits that eventually intersect the disk once again.
The mouth of the horseshoe had a post set just inside it, and in the centre of the horseshoe there was a boulder with some burnt bone near it. [2] In the second phase the timber posts were replaced by a horseshoe setting of 8 standing stones, about 8 metres by 6 metres. [2] This was surrounded by a stone bank around 17 metres in diameter. [3]
A caulkin [a] is a blunt projection on a horseshoe or oxshoe that is often forged, welded or brazed onto the shoe. [1] [2] The term may also refer to traction devices screwed into the bottom of a horseshoe, also commonly called shoe studs or screw-in calks. These are usually a blunt spiked cleat, usually placed at the sides of the shoe.
The nailed iron horseshoe first clearly appeared in the archaeological record in Europe in about the 5th century AD when a horseshoe, complete with nails, was found in the tomb of the Frankish King Childeric I at Tournai, Belgium. [9] In Gallo-Roman countries, the hipposandal appears to have briefly co-existed with the nailed horseshoe. [1] [7]