quarta-feira, 12 de maio de 2010

Match

A match is a consumable tool for lighting a fire in controlled circumstances. They are commonly sold by tobacconists and many other kinds of shops. Matches are usually sold in quantity, packaged in match boxes or matchbooks. A match is typically a wooden stick (typical in the case of match boxes) or stiff paper stick (in the case of matchbooks) coated at one end with a material which will ignite from the heat of friction if struck against a suitable surface.[1] The lighting end of a match is known as the match "head" and, depending on type, either contains phosphorus or phosphorus sesquisulfide as the active ingredient and gelatin as a binder. There are two main types of matches: safety matches, which can be struck only against a specially prepared surface; and strike-anywhere matches, for which any suitably frictional surface can be used.
Match-type compositions may also be used to produce electric matches, which are fired electrically. These items do not rely on the heat of friction.

Nenhum comentário:

Postar um comentário