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{{ | {{Wikipedia|Brass}} | ||
'''Brass''' is any alloy of copper and [[zinc]]; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. In comparison, bronze is principally an alloy of copper and tin. Despite this distinction, some types of brasses are called bronzes. Brass is a substitutional alloy. It is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, ammunition, and valves; for plumbing and electrical applications; and extensively in musical instruments such as horns and bells for its acoustic properties. Brass has a muted yellow color, somewhat similar to gold. It is relatively resistant to tarnishing, and is often used as decoration and for coins. In antiquity, polished brass was often used as a mirror. Brass has likely been known to [[human]]s since prehistoric times, even before zinc itself was discovered. It was produced by melting copper together with calamine, a zinc ore. | '''Brass''' is any alloy of copper and [[zinc]]; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. In comparison, bronze is principally an alloy of copper and tin. Despite this distinction, some types of brasses are called bronzes. Brass is a substitutional alloy. It is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, ammunition, and valves; for plumbing and electrical applications; and extensively in musical instruments such as horns and bells for its acoustic properties. Brass has a muted yellow color, somewhat similar to gold. It is relatively resistant to tarnishing, and is often used as decoration and for coins. In antiquity, polished brass was often used as a mirror. Brass has likely been known to [[human]]s since prehistoric times, even before zinc itself was discovered. It was produced by melting copper together with calamine, a zinc ore. | ||
Brass was still being used as a shell casing for firearms in [[2552]]. [[Ash-G099|Ash]] put spent brass casing on the graves of [[William-043|William]] and [[Dante-G188|Dante]].<ref>'''[[Halo: Ghosts of Onyx|Ghosts of Onyx]]''', ''page 379''</ref> It was also used for lamps. One of these lamps was found on [[Vice Admiral]] [[Ysionris Jeromi]]'s [[Koa | Brass was still being used as a shell casing for firearms in [[2552]]. [[Ash-G099|Ash]] put spent brass casing on the graves of [[William-043|William]] and [[Dante-G188|Dante]].<ref>'''[[Halo: Ghosts of Onyx|Ghosts of Onyx]]''', ''page 379''</ref> It was also used for lamps. One of these lamps was found on [[Vice Admiral]] [[Ysionris Jeromi]]'s [[Koa wood]] desk in [[2551]].<ref>'''Ghosts of Onyx''', ''page 104''</ref> | ||
In Halo, as well as present day military, senior commissioned officers are often referred to as "the Brass". The nickname was probably bestowed because their insignias are/were once made of brass. | In Halo, as well as present day military, senior commissioned officers are often referred to as "the Brass". The nickname was probably bestowed because their insignias are/were once made of brass. | ||
==Sources== | ==Sources== | ||
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[[Category:Materials]] | [[Category:Materials]] |