| − | A '''pencil''' is a writing implement that is generally made of [[wood]] or [[plastic]] and a [[graphite]] center, used for drawing marks on a surface. The graphite core of a pencil is commonly known as the [[lead]], because early pencils used lead rather than graphite. Pencil grades vary from soft (B) to hard (H), the standard grade being HB. A typical pencil can write 45,000 [[word]]s or draw a line 35 [[mile]]s long. | + | A '''pencil''' is a writing implement that is generally made of [[wood]] or [[plastic]] and a [[graphite]] center, used for drawing marks on a surface. The graphite core of a pencil is commonly known as the [[lead]], because early pencils used lead rather than graphite. Pencil grades vary from soft (B) to hard (H), the standard grade being HB. A typical pencil can write 45,000 [[word]]s or draw a line 35 [[mile]]s long.<ref name="discovermagazine.com">http://discovermagazine.com/2007/may/20-things-you-didnt-know-about-pencils</ref> |
| − | There is a pencil museum in [[Kendal]], [[Cumbria]], [[England]], which provides a history of pencils and pencil making information.
| + | Although a modern American feature, most pencils sold and used in the United States include [[Pencil eraser|eraser]] plugs on the back end. |
| − | Reference: http://discovermagazine.com/2007/may/20-things-you-didnt-know-about-pencils
| + | There is a pencil museum in [[Kendal]], [[Cumbria]], [[England]], which provides a history of pencils and pencil making information.<ref name="discovermagazine.com">http://discovermagazine.com/2007/may/20-things-you-didnt-know-about-pencils</ref> |