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A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
Boogie Board is a product line of paperless note taking tools, utilizing an LCD in conjunction with a stylus, finger, or other implement to replicate the functionality of pen and paper. Boogie Board was developed by Kent Displays Incorporated, based on research conducted at Kent State University .
Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts.
Simon in the Land of Chalk Drawings is a British-Canadian children's animated series about the adventures of a young boy named Simon, who has a magic blackboard. [2] Things that Simon draws on the chalkboard become real in the Land of Chalk Drawings, a parallel world which Simon can enter by climbing over a fence near his home with a ladder.
William Brownie Garden (December 2, 1869 – 1960) was a Scottish inventor and entrepreneur. He is probably best known for his invention of the "revolving blackboard". Up until his death at age 90, in 1960, the ‘Inventor’ still worked at his own bench in the factory, from which came innovations like an improved saw which cut ten times quicker than any other, and an eight-wheeled car for ...
Bulletin boards are often made of a material such as cork to facilitate addition and removal of messages, as well as a writing surface such as blackboard or whiteboard. A bulletin board which combines a pinboard (corkboard) and writing surface is known as a combination bulletin board.
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A writing implement or writing instrument is an object used to produce writing. Writing consists of different figures, lines, and or forms. Writing consists of different figures, lines, and or forms. Most of these items can be also used for other functions such as painting , drawing and technical drawing , but writing instruments generally have ...