Worlds of David Darling
Encyclopedia of Science
   
Home > Encyclopedia of Science

lightning rod




A lightning rod, also called a lightning conductor, is a safety device on buildings, etc., as protection from the destructive effects of lightning. One end of a strip of conducting metal (e.g., copper) is earthed, the other mounted high on the building; any discharge thus passes directly to the ground.


Related category

   • ELECTRICITY AND MAGNETISM