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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 ...
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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.
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
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In horseshoes, there are two ways to score: by throwing "ringers" or by throwing the horseshoe nearest to the stake. A ringer is a horseshoe that has been thrown in such a way as to completely encircle the stake. Disputes are settled by using a straightedge to touch the two points at the ends of the horseshoe, called "heel calks". If the ...
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.
Varieties of Gothic pointed arches: 1 - equilateral (with trefoil treatment), 2 - blunt, 3 - lancet, 4 - ogee, 5 - four-centred, 6 - curtain (inflexed), 7 - pointed horseshoe The most common form of the Gothic pointed arch in windows and arches was based upon an equilateral triangle , in which the three sides have an equal length (the span of ...