QUOTE
Paper is thin material mainly used for writing upon, printing upon or packaging. It is produced by the amalgamation of fibers, typically vegetable fibers composed of cellulose, which are subsequently held together by hydrogen bonding. While the fibers are usually natural in origin, a wide variety of synthetic fibers, such as polypropylene and polyethylene, may be incorporated into paper as a way of imparting desirable physical properties. The most common source of these kinds of fibers is wood pulp from pulpwood trees. Vegetable fiber materials such as cotton, hemp, linen, and rice are also used.
Good gravy! No mention of the historical significance of paper (perhaps one of mankind's most monumental inventions) or its origins in Egyptian papyrus. Plenty of coverage for polypropylene and polyethylene, though. (The word "paper" is mentioned ONCE in the articles about polypropylene and polyethylene.)
In July 2006, the intro read:
QUOTE
Paper is a thin, flat material produced by the compression of fibers. The fibers used are usually natural and composed of cellulose. The most common source of these kinds of fibers is wood pulp from pulpwood trees, (largely softwoods) such as spruce. However, other vegetable fiber materials including cotton, hemp, linen, and rice may be used. Though generally considered a flexible material, the edges of paper sheets can act as very thin, fine-toothed saws, leading to paper cuts.
In July 2005:
QUOTE
Paper is a thin, flat material produced by the compression of fibres. The fibers used are usually natural and based upon cellulose. The most common material is wood pulp from pulpwood (largely softwood) trees such as spruces, but other vegetable fiber materials including cotton, linen, and hemp may be used.
A stack of 500 sheets of paper is called a ream. The edges of paper sheets can act as very thin, fine-toothed saws, leading to paper cuts.
A stack of 500 sheets of paper is called a ream. The edges of paper sheets can act as very thin, fine-toothed saws, leading to paper cuts.
In July 2004:
QUOTE
Paper is a thin, flat material produced by the compression of fibres. The fibres used are usually natural and based upon cellulose. The most common material is wood pulp from pulpwood (largely softwood) trees such as pines, but other vegetable fiber materials including cotton, linen, and hemp may be used.
In July 2003:
QUOTE
Paper is a thin, flat material produced by the compression of fibres invented by Ts'ai Lun in AD 105. The fibres used are usually natural and based upon cellulose. The most common material is wood pulp from softwood trees such as pines, but other materials including cotton (flax) and hemp may be used.
In July 2002:
QUOTE
Paper is a thin, flat material produced by the compression of fibres invented by Ts'ai Lun two thousand years ago. The fibres used are usually natural and based upon cellulose. The most common material is tree wood, but other materials including cotton and hemp are used.
Sorry, but I'm having trouble seeing how the intro paragraph today is "better" than the intro paragraph from six years ago. Isn't Wikipedia supposed to always be improving?