Campainhas
Campainhas is the Portuguese plural term for bells or doorbells, used to refer to both traditional struck bells and modern signaling devices. As an object, a campainha can denote a metal bell hung in churches, public buildings and homes, or an electrical door chime used to announce visitors.
Historically, bells have been important in religious, civic and community life. Large tuned sets such as carillons
Construction and acoustics vary by type: church bells are typically cast from bronze and tuned by shaping
Conservation and restoration of historic bells and bell towers involve metallurgical assessment, structural repair and careful