Vibraphone Vibraphone The vibraphone (also known as the vibraharp or simply the vibes) is a musical instrument in the struck idiophone subfamily of the percussion family. It consists of tuned metal bars, and is usually played by holding two or four soft mallets and striking the bars. A person who plays the vibraphone is called a "vibraphonist" or "vibraharpist". The vibraphone resembles the xylophone, marimba, and glockenspiel, one of the main differences between it and these instruments being that each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end. The valves are mounted
Hammer (firearms) be called the first hammer system. This arose after Scottish clergyman Reverend Alexander Forsyth discovered the property of mercury fulminate (Hg(ONC)2) to combust when struck. Using this discovery, the percussion cap was created. The cap was a small metal cup filled with volatile chemicals placed at the rear of the barrel over a nipple in what was known as the caplock mechanism. A true hammer was cocked via a spring system and held in place until the trigger was pulled to release the hammer. The hammer would then swing forward and strike the percussion cap which would in turn ignite