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An eraser (also known as a rubber in some Commonwealth countries, including South Africa [1] [2] [3] from which the material first used got its name) is an article of stationery that is used for removing marks from paper or skin (e.g. parchment or vellum). Erasers have a rubbery consistency and come in a variety of shapes, sizes, and colors.
A rubber band assault rifle made with ice cream sticks, with mock bayonet removed A sniper rifle-style Popsticle stick rubber band gun, with mock scope and bolt. Rubber band guns can be made from Popsicle sticks. The individual sticks are held together by either rubber bands, tape or glue. They can also be cut or carved to the required shape.
A rubber band is a single molecule, as is a latex glove. The sections of polyisoprene between two adjacent cross-links are called network chains and can contain up to several hundred isoprene units. In natural rubber, each cross-link produces a network node with four chains emanating from it.
A rubber band ball is a sphere of rubber bands made by using a knotted single band as a starting point and then wrapping rubber bands around the center until the desired size is achieved. The ball is usually made from 100% rubber bands, but some instructions call for using a marble , [ 16 ] a crumpled piece of paper , or a ping-pong ball [ 17 ...
This is a more involved process than removing pencil markings. Pencil marks can be gradually adhered to natural rubber fragments by rubbing the mark with a pencil eraser (this action is what prompted Joseph Priestley to give solidified latex its common name). Ink, however, readily penetrates the fibers of most papers and is therefore more ...
The original shaped silicone rubber bands were created in 2002 by the Japanese design team Passkey Design, Yumiko Ohashi, and Masonar Haneda. [1] [2] They made the bands in cute animal shapes to encourage sustainability by discouraging people from treating the rubber bands as disposable. [3] [2] Sold under the brand name Animal Rubber Bands ...
Stephen Perry was a 19th-century British inventor and businessman credited with the invention of the rubber band. His corporation was the Messers Perry and Co,. Rubber Manufacturers of London, which made early products from vulcanised rubber, only recently perfected by Charles Goodyear in 1839. On 17 March 1845, Perry received a patent for the ...
EPDM rubber (ethylene propylene diene monomer rubber) [1] [2] [3] is a type of synthetic rubber that is used in many applications. EPDM is an M-Class rubber under ASTM standard D-1418; the M class comprises elastomers with a saturated polyethylene chain (the M deriving from the more correct term polymethylene).
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