1 In this sense it is nearly synonymous with synopsis. ( 2 n.) The tracing of things to their source, and the resolving of knowledge into its original principles. ( 3 n.) A syllabus, or table of the principal heads of a discourse, disposed in their natural order.
A lightning rod or lightning conductor is a iron rod that is used to make lightning strike it, rather than strike something else. It is part of a lightning protection system. Such a system is made of many such rods. These rods are usually placed at high points of buildings and structures.
It is in the latter manner that lightning rods actually work. The charge flowing between a lightning rod and a thunder cloud. is much too small to discharge the thundercloud (Ref. 2.4). The rod diverts to itself a stroke on its way to earth but can do. so only in the final part of the strokeâs earthward trajectory.