A clapper is a basic form of percussion instrument. It consists of two long solid pieces that are clapped together producing sound. A straightforward instrument to produce and play, they exist in many forms in many different cultures around the world. Clappers can take a number of forms and be made of a wide variety of material. Wood is most common, but metal and ivory have also been used. The plastic thundersticks that have recently come to be popular at sporting events can be considered a form of inflated plastic clapper.
Several specific forms of clapper have their own names, such as the Chinese guban or the Korean bak. In the classical music of Thailand, two clappers are used: the krab sepha and krab phuong. In the classical music of Thailand, a similar instrument is called krap. In Vietnam, the coin clapper called sinh tiền is widely used. In medieval French music, clappers called tablettes or cliquettes were used. In the Western symphony orchestra, a clapper called the whip (also called slapstick) is occasionally used in the percussion section.
Slapstick is a style of humor involving exaggerated physical activity which exceeds the boundaries of common sense.
The name "slapstick" comes from the Italian language word batacchio or bataccio — called the "slap stick" in English — a club-like object composed of two wooden slats used in commedia dell'arte. When struck, the batacchio produces a loud smacking noise, though little force transfers from the object to the person being struck. Actors may thus hit one another repeatedly with great audible effect while causing very little actual physical damage. Along with the inflatable bladder (of which the whoopee cushion is a modern variant), it was among the earliest special effects.
Slapstick comedy's history is measured in centuries. Shakespeare incorporated many chase scenes and beatings into his comedies, such as in his play The Comedy of Errors. In early 19th century England, pantomime acquired its present form which includes slapstick comedy, while comedy routines also featured heavily in British music hall theatre which became popular in the 1850s. British comedians who honed their skills at pantomime and music hall sketches include Charlie Chaplin, Stan Laurel, George Formby and Dan Leno. The influential English music hall comedian and theatre impresario Fred Karno developed a form of sketch comedy without dialogue in the 1890s, and Chaplin and Laurel were among the young comedians who worked for him as part of "Fred Karno's Army".