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  2. Blackboard - Wikipedia

    en.wikipedia.org/wiki/Blackboard

    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 Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.

  3. Chalkboard art - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_art

    Chalkboard art or chalk art is the use of chalk on a blackboard as a visual art. [1] It is similar to art using pastels and related to sidewalk art that often uses chalk. Chalkboard art is often used in restaurants, shops or walls. [2] Chalkboard art has also been done on large boards while storytelling on beaches and in Churches.

  4. Sidewalk chalk - Wikipedia

    en.wikipedia.org/wiki/Sidewalk_chalk

    Chalk art by kids in the Czech Republic. On September 16–17, 2006, a global event was held to promote peace through sidewalk chalk drawings. [5] Chalk4Peace was a project planned by an artist from Arlington, Virginia named John Aaron, who asked children and teens from the age of eight to age eighteen to participate in groups across the world to draw chalk drawings that would illustrate peace ...

  5. Whiteboard - Wikipedia

    en.wikipedia.org/wiki/Whiteboard

    A combination between a whiteboard and a cork bulletin board Original early 1960s ad for "Plasti-slate", the first whiteboard/dry erase board invented by Martin Heit. It has been widely reported that Korean War veteran and photographer Martin Heit and Albert Stallion, an employee at Alliance, a leading flat rolled steel sheet supplier should be credited with the invention of the whiteboard in ...

  6. List of photographs considered the most important - Wikipedia

    en.wikipedia.org/wiki/List_of_photographs...

    The examples and perspective in this article deal primarily with the United States and Europe and do not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate.

  7. Chalkboard paint - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_Paint

    Chalkboard paint is a specialized paint that creates a chalkboard-like coating that can be utilized as a writing surface in the same manner as a traditional chalkboard. Chalkboard paint is commonly made out of a mixture of talc , [ 1 ] [ 2 ] acrylic , [ 1 ] water , glycol , titanium dioxide , [ 3 ] carbon black , [ 4 ] opacifiers , silica , [ 2 ...

  8. Bulletin board - Wikipedia

    en.wikipedia.org/wiki/Bulletin_board

    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.

  9. Blackboard (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Blackboard_(disambiguation)

    Blackboard may also refer to: Black board (Soviet policy), sign used in the Soviet era publicly to chastise farms or factories for such things as failing to meet targets or opposing collectivisation; Blackboard bold, a style of typeface often used for certain symbols in mathematics and physics texts; Blackboard Inc., an e-learning software company

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