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Red polka dots on a yellow background. The polka dot is a pattern consisting of an array of large filled circles of the same size. [1]Polka dots are commonly seen on children's clothing, toys, furniture, ceramics, and Central European folk art, but they appear in a wide array of contexts.
In mathematics, physics, and art, moiré patterns (UK: / ˈ m w ɑː r eɪ / MWAH-ray, US: / m w ɑː ˈ r eɪ / mwah-RAY, [1] French: ⓘ) or moiré fringes [2] are large-scale interference patterns that can be produced when a partially opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré ...
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Mylothris agathina, the eastern dotted border or common dotted border, is a butterfly of the family Pieridae. It is native to sub-Saharan Africa , particularly East Africa and southern Africa . In South Africa its range has spread westwards around the coast in the late 20th century, and it now occurs north of Cape Town to somewhat beyond Saldanha .
See-through graphics can be added to glass or other transparent panels to provide advertising, branding, architectural expression, one-way privacy and solar control. See-through graphics on the outside of a window See-through graphics: the view outside is unobstructed. Perforated self-adhesive window films are often used to create see-through ...
This is a list of military clothing camouflage patterns used for battledress. Military camouflage is the use of camouflage by armed forces to protect personnel and equipment from observation by enemy forces. Textile patterns for uniforms have multiple functions, including camouflage, identifying friend from foe, and esprit de corps. [1]
The Ben Day process is a printing and photoengraving technique for producing areas of gray or (with four-color printing) various colors by using fine patterns of ink on the paper. It was developed in 1879 [ 1 ] by illustrator and printer Benjamin Henry Day Jr. (son of 19th-century publisher Benjamin Henry Day ). [ 2 ]
The vertical dotted black midline is a Conway sphere separating the diagram into 2-tangles. In knot theory, the Borromean rings are a simple example of a Brunnian link, a link that cannot be separated but that falls apart into separate unknotted loops as soon as any one of its components is removed. There are infinitely many Brunnian links, and ...