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  2. Overlapping circles grid - Wikipedia

    en.wikipedia.org/wiki/Overlapping_circles_grid

    An overlapping circles grid is a geometric pattern of repeating, overlapping circles of an equal radius in two-dimensional space. Commonly, designs are based on circles centered on triangles (with the simple, two circle form named vesica piscis ) or on the square lattice pattern of points.

  3. Hexafoil - Wikipedia

    en.wikipedia.org/wiki/Hexafoil

    The seven overlapping circles grid forms a triangular lattice, seen here with hexagonal rings of 1, 7, 19, 37, 61, 91 circles. [ 3 ] The pattern figure can be drawn by pen and compass , by creating seven interlinking circles of the same diameter touching the previous circle's center.

  4. Borromean rings - Wikipedia

    en.wikipedia.org/wiki/Borromean_rings

    Most commonly, these rings are drawn as three circles in the plane, in the pattern of a Venn diagram, alternatingly crossing over and under each other at the points where they cross. Other triples of curves are said to form the Borromean rings as long as they are topologically equivalent to the curves depicted in this drawing.

  5. Quatrefoil - Wikipedia

    en.wikipedia.org/wiki/Quatrefoil

    A quatrefoil (anciently caterfoil) [1] is a decorative element consisting of a symmetrical shape which forms the overall outline of four partially overlapping circles of the same diameter. It is found in art, architecture, heraldry and traditional Christian symbolism . [ 2 ]

  6. Circle packing - Wikipedia

    en.wikipedia.org/wiki/Circle_packing

    The most efficient way to pack different-sized circles together is not obvious. In geometry, circle packing is the study of the arrangement of circles (of equal or varying sizes) on a given surface such that no overlapping occurs and so that no circle can be enlarged without creating an overlap.

  7. Doyle spiral - Wikipedia

    en.wikipedia.org/wiki/Doyle_spiral

    A Doyle spiral of type (8,16) printed in 1911 in Popular Science as an illustration of phyllotaxis. [1] One of its spiral arms is shaded. In the mathematics of circle packing, a Doyle spiral is a pattern of non-crossing circles in the plane in which each circle is surrounded by a ring of six tangent circles.

  8. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/dying-to-be-free...

    The last image we have of Patrick Cagey is of his first moments as a free man. He has just walked out of a 30-day drug treatment center in Georgetown, Kentucky, dressed in gym clothes and carrying a Nike duffel bag.

  9. Moiré pattern - Wikipedia

    en.wikipedia.org/wiki/Moiré_pattern

    Line moiré with slow movement of the revealing layer upward Shape moiré Moiré pattern created by overlapping two sets of concentric circles. Moiré patterns are often an artifact of images produced by various digital imaging and computer graphics techniques, for example when scanning a halftone picture or ray tracing a checkered plane (the ...