String art
Encyclopedia
String art, or pin and thread art, is characterized by an arrangement of colored thread strung between points to form abstract geometric patterns or representational designs such as a ship's sail
Sail
A sail is any type of surface intended to move a vessel, vehicle or rotor by being placed in a wind—in essence a propulsion wing. Sails are used in sailing.-History of sails:...

s, sometimes with other artist material comprising the remainder of the work. Thread, wire, or string is wound around a grid of nails hammered into a velvet
Velvet
Velvet is a type of woven tufted fabric in which the cut threads are evenly distributed,with a short dense pile, giving it a distinctive feel.The word 'velvety' is used as an adjective to mean -"smooth like velvet".-Composition:...

-covered wooden board. Though straight lines are formed by the string, the slightly different angles and metric positions at which strings intersect may give the appearance of Bézier curve
Bézier curve
A Bézier curve is a parametric curve frequently used in computer graphics and related fields. Generalizations of Bézier curves to higher dimensions are called Bézier surfaces, of which the Bézier triangle is a special case....

s (and often construct actual quadratic Bézier curves). Other forms of string art include Spirelli, which is used for cardmaking
Cardmaking
Cardmaking is the craft of hand-making greeting cards. Many people with interests in allied crafts such as scrapbooking and stamping have begun to use their skills to start making handmade cards. This has contributed to cardmaking becoming a popular hobby....

 and scrapbooking
Scrapbooking
Scrapbooking is a method for preserving personal and family history in the form of a scrapbook. Typical memorabilia include photographs, printed media, and artwork. Scrapbook albums are often decorated and frequently contain extensive journaling...

, and curve stitching, in which string is stitched through holes.

String art has its origins in the 'curve stitch' activities invented by Mary Everest Boole
Mary Everest Boole
Mary Everest Boole was a self-taught mathematician who is best known as an author of didactic works on mathematics, such as Philosophy and Fun of Algebra, and as the wife of fellow mathematician George Boole...

at the end of the 19th Century to make mathematical ideas more accessible to children. It was popularised as a decorative craft in the late 1960s through kits and books.

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