Cric pour automobile

Cric pour automobile
Cric pour automobile: appareil à crémaillère muni d'une manivelle servant à soulever l'automobile.
Pivot: axe de rotation.
Levier: partie solide et mobile attachée à un point fixe, qui permet d'augmenter une force appliquée.
Manivelle: bras perpendiculaire à l'axe qui permet de donner un mouvement de rotation.
Base: pied sur lequel repose le cric.

Photo :

EN : Bells (ceramic)
FR : Cloche
ES : Campana


A bell is a simple sound-making device. The bell is a percussion instrument and an idiophone. Its form is usually an open-ended hollow drum which resonates upon being struck. The striking implement can be a tongue suspended within the bell, known as a clapper, a small, free sphere enclosed within the body of the bell, or a separate mallet. Bells are usually made of cast metal, but small bells can also be made from ceramic or glass. Bells can be of all sizes: from tiny dress accessories to church bells weighing many tons.