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The Groton School Rasterbation [3] used more than 1500 sheets of 11x14" paper and was 100' tall, making it the largest ever. In June 2012, another graduating class from the University of Toronto Schools produced 74 9-by-9-foot (2.7 m × 2.7 m) rasterbations in one night, each incorporating 143 sheets of 8 + 1 ⁄ 2 ×11" letter-sized paper ...
A p4g pattern can be looked upon as a checkerboard pattern of copies of a square tile with 4-fold rotational symmetry, and its mirror image. Alternatively it can be looked upon (by shifting half a tile) as a checkerboard pattern of copies of a horizontally and vertically symmetric tile and its 90° rotated version.
In 1961, Wang conjectured that if a finite set of Wang tiles can tile the plane, then there also exists a periodic tiling, which, mathematically, is a tiling that is invariant under translations by vectors in a 2-dimensional lattice. This can be likened to the periodic tiling in a wallpaper pattern, where the overall pattern is a repetition of ...
An offset transfer moves the image to a printing substrate (typically paper), making the image right-reading again. Offset printing uses a lithographic process which is based on the repulsion of oil and water. The offset process employs a flat (planographic) image carrier (plate) which is mounted on a press cylinder.
Smallest aperiodic set of Wang tiles. No image: Decagonal Sponge tile: 1: E 2: 2002 [58] [59] Porous tile consisting of non-overlapping point sets. No image: Goodman-Strauss strongly aperiodic tiles: 85: H 2: 2005 [60] No image: Goodman-Strauss strongly aperiodic tiles: 26: H 2: 2005 [61] Böröczky hyperbolic tile: 1: H n: 1974 [62] [63] [61 ...
A screened negative has varying sizes of dots arranged in a particular pattern to represent greater or lesser density of image. Typically, a 150 dots-per-inch screen is used to create each printing negative, though this will varying depending on the application, where a magazine may use 200 line screens and a newspaper may use 120 to 133 line ...