demolish verb [T] (DESTROY). B2 to âcompletely âdestroy a âbuilding, âespecially in âorder to use the âland for something âelse: A ânumber of âhouses were demolished so that the âsupermarket could be âbuilt. C2 to âprove that an âargument or âtheory is âwrong: He âcompletely demolished all her âarguments.More examples. The â building had to be demolished because of â subsidence. 2  One by one the â old â buildings in the â city have been demolished and â replaced with â modern â tower â blocks. 3  The â explosion â virtually demolished several â nearby â houses.
Brass is a metal composed primarily of copper and zinc. Copper is the main component, and brass is usually classified as a copper alloy. The color of brass varies from a dark reddish brown to a light silvery yellow depending on the amount of zinc present; the more zinc, the lighter the color. Brass is stronger and harder than copper, but not as strong or hard as steel.
Brass is a yellowish metal that is a combination of copper and zinc. But some instruments that are made of brass, like the saxophone, are not considered brass instruments. So, what makes an instrument part of the brass family? For any sound to be produced, something has to vibrate, such as a column of air, a string, a reed, or a drum head. In the case of brass instruments, it is actually the player's lips that vibrate. This happens in a mouthpiece that's attached to the instrument, causing the air in the instrument to vibrate. Any instrument that produces sound in this way is part of the brass family. There are two ways to change pitch in a brass instrument. The first way is to make the tubing of the instrument shorter or longer. Valves redirect the air to shorter or longer routes to make the pitch go up or down.