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When the object approaches the larger body closely at either end of its trajectory, its apparent direction changes. Over an entire cycle the center traces the outline of a horseshoe, with the larger body between the 'horns'. Asteroids in horseshoe orbits with respect to Earth include 54509 YORP, 2002 AA 29, 2010 SO 16, 2015 SO 2 and possibly ...
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
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.
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.
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.
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 ...
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References A ace Slang for the drug acepromazine or acetyl promazine (trade names Atravet or Acezine), which is a sedative : 3 commonly used on horses during veterinary treatment, but also illegal in the show ring. Also abbreviated ACP. action The way a horse elevates its legs, knees, hock, and feet. : 3 Also includes how the horse uses its shoulder, humerus, elbow, and stifle; most often used ...