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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-shaped, resembling a horseshoe, cf. horseshoe (disambiguation). In botany, also called lecotropal (see below) Hourglass shape or hourglass figure, the one that resembles an hourglass; nearly symmetric shape wide at its ends and narrow in the middle; some flat shapes may be alternatively compared to the figure eight or hourglass
Horseshoe-shaped wall decorations are also common. In the Middle East, blue-glazed terra cotta horseshoe plaques are widely used, while in Turkey, metal or blue glass horseshoes are combined with the "all-seeing eye" to create distinctive protective talismans believed to ward off the evil eye.
Proponents of horseshoe theory argue that the far-left and the far-right are closer to each other than either is to the political center. In popular discourse, the horseshoe theory asserts that advocates of the far-left and the far-right, rather than being at opposite and opposing ends of a linear continuum of the political spectrum, closely resemble each other, analogous to the way that the ...
A horseshoe curve is a means to lengthen an ascending or descending grade and thereby reduce the maximum gradient. Grade or gradient is defined as the rise divided by the run (length) or distance, so in principle such curves add to length for the same altitude gain, just as would a climbing spiral around one or more peaks, or a climbing traverse (cutting) wrapping around an end of a ridge.
Cizhou ware fired in a mantou kiln: meiping vase with slip-painted peony foliage, Jin dynasty, 12th or 13th century. The mantou kiln (Chinese: 饅頭窯; pinyin: mántóu yáo; Wade–Giles: man-t'ou yao) or horseshoe-shaped kiln was the most common type of pottery kiln in north China, in historical periods when the dragon kiln dominated south China; both seem to have emerged in the Warring ...
Shapes of horseshoe as designed for the African reference alphabet, clearly based on a serifed shape of the Latin capital U.. The letter Ʊ (minuscule: ʊ), called horseshoe or sometimes bucket, inverted omega or Latin upsilon, is a letter of the International Phonetic Alphabet used to transcribe a near-close near-back rounded vowel.
The horseshoe orbit arises because the gravitational attraction of the Earth changes the shape of the elliptical orbit of the asteroid. The shape changes are very small but result in significant changes relative to the Earth. The horseshoe becomes apparent only when mapping the movement of the asteroid relative to both the Sun and the Earth.