Viewing the 1769 King James Version. Click to switch to 1611 King James Version of Job 36:32
With clouds he covereth the light; and commandeth it not to shine by the cloud that cometh betwixt.
A lightning rod (US, AUS) or lightning conductor (UK) is a metal rod or metallic object mounted on top of a building, electrically bonded using a wire orelectrical conductor to interface with ground or "earth" through an electrode, engineered to protect the building in the event of lightning strike. If lightning targets the building it will preferentially strike the rod and be conducted to ground through the wire, instead of passing through the building, where it could start a fire or cause electrocution.
A lightning rod is a single component in a lightning protection system. Lightning rods are also called finials, air terminals or strike termination devices. The lighting rod requires a connection to earth to perform its protective function. Lightning rods come in many different forms, including hollow, solid, pointed, rounded, flat strips or even bristle brush-like: copper or aluminum. The main attribute of all lightning rods is they are conductive.