What are erasers made from?
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ERASERS are made from either a synthetic rubber compound or from vinyl. In either case, the raw material is blended to the proper consistency and is put into a machine called an "extruder." The eraser material is forced through a small hole producing a long ribbon of eraser.\n\nEach ribbon is cut into strands about 3 feet in length. If the eraser is made of synthetic rubber, the strands are placed in a "vulcanizer," which cooks them under pressure to cure the rubber. When cool, the strands are put into a rotary cutter and chopped into bits -- called plugs. (Vinyl eraser strands go straight to the rotary cutter -- vinyl does not need to be vulcanized!)\n\nHistory\nPrior to using rubber, white bread (without crust) was used to erase the mark of graphite pencil and charcoal. It is still sometimes used for that by charcoal artists.\nIn 1770, scientist Joseph Priestley noted, "I have seen a substance excellently adapted to the purpose of wiping from paper the mark of black lead pencil."\n\nAlso in 1770, Edward Naime, an English engineer, is credited with creating the first rubber eraser, and reportedly was selling natural rubber erasers for the astonishingly high price of 3 shillings per half-inch cube. According to Nayme himself, he inadvertently picked up a piece of rubber instead of breadcrumbs, discovered rubber's erasing properties, and began selling rubber erasers. Incidentally, this was the first practical application of the substance in Europe, and rubbing out the pencil marks gave it its English name.\n\nHowever, rubber in its raw form shared the same inconveniences as bread, since it was perishable and would go bad over time. In 1839, inventor Charles Goodyear discovered the process of vulcanization, a method that would cure rubber and make it a durable material. Rubber erasers became common with the advent of vulcanized rubber.\n\nIn 1858, Hymen Lipman of Philadelphia, Pennsylvania, USA, received the first patent for attaching an eraser to the end of a pencil. It was later invalidated because it was determined to be simply a composite of two devices rather than an entirely new product.
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Put a tiny bit of glue on the end of a pin.  Stick the end of the pin into the eraser and let it dry.  When you pull the pin out, the eraser should come out too.  Then you will be able to remove the lead AND put in a new eraser.
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the surface that is writable to is meltable.\nwhen you erase it - it is melted and resmoothed.\nyou can then rewrite to it\nyou can do this quite a few times before it breaks down and becomes unusable
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paper made from straw
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They are usually made by hand. Check out for further info.:\n\nhttp://www.pointeshoe.co.uk/making.htm
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Sliding friction is the friction that an object has while it's moving.\n\nAn eraser has the most sliding friction.\n\nStatic friction is the resistance of an object from movement. I suppose since an eraser has the most sliding friction, it will also have the most static friction. that or a paperback book just because it's heavier.\n\nit really depends on the coefficient of friction. \n\nI should say that the eraser will have the highest coefficient of frictions, but the paperback book will have the highest overall friction just because of it's weight.
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Paper is insoluble  in water.\nPaper is made from wood - plant fiber.
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It cannot be erased.  The toner (it is not ink) is made of plastic particles bonded to iron particles (just like those used in photocopiers).  Upon printing, this is heat fused unto the paper.\n\nReprint the page.
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G'day Jake L,\n\nThank you for your question.\n\nSurfboards were originally made of wood or balsa. These days they are mostly made of polyurethane or polystyrene foam covered with layers of fiberglass cloth and polyester or epoxy resin. However, there are some specialty boards made out of aluminium and carbon fibre.\n\nI have attached sources for your reference.\n\nRegards
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Mr Clean Magic eraser
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the correct answer is Eraser Crumbs.
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carbon fiber.\nit comes as a soft material rolled up like cloth, then they cut it and put it around a mould. It is hardened by putting it under a vacuum, and then in a huge autoclave which cooks the material. the result is strong yet light carbon-fiber
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nylon\n\nmade from petro chemical
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Rubber. PVC, oil (special types), mica, porcelain, tufnell, glass, teflon, silica, shellac, special varnishes in motors, and hundreds of different tyes of plastics.
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Get a file shredder such as Tracks Eraser Pro. It is capable of overwriting a file several times, so that it is TRULY gone.\n\nTo to http://www.download.com and try the trial version.  Just do a search for tracks eraser
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Yes, there is dust free chalk. It is pretty hard to erase, but it may be a good trade off.\n\nWhat country are you from?  If you are from the US, you can purchase it at Staples.com for 69 cents a package.  You still must pay for shipping if you are not a rewards member but it may be worth it.  Go to www.staples.com and search for "dustless chalk".\n\nIf you are not from the US, I can suggest going to your local office supply store or Teacher store and asking if they carry it.\n\nGood luck on your quest!
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Most boards at the minute are made of 5 or 7 ply Canadian Maple. which is pressed into shape and given a concave for added strenght, and then coated to give it a smooth finish,\n\nas for the future. i have to agree ^^^^^^ Carbon fibre is amazing, but at this moment in time, its hella expensive!