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 or electrical conductor to interface with ground or "earth" through an electrode, engineered to protect the building in the event oflightning strike. If lightning hits 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. The main attribute of all lightning rods is they are conductive.
rods: detect light cones: detect colors
threee ways in which rods and cones differ in structure or function
Rods see black and white, shadows, and highlights
The hearing rods for identifier "c" language is the function.
Rods respond to light while Cones respond to color.
Rods respond to light while Cones respond to color.
Control rods are used in a reactor to control the rate at which fission happens.
The major function of Rods in the eye is that of Photo (light) reception. They are more sensitive to light thn are the cones, but are not color sensitive,The rods are photo receptor cells found in the retina. Their main function is to help the eye see in dim light.
vision in dim light
rods
The rods cells are photoreceptor cells that require less light to function, therefore they are responsible for night vision.
Rods help you see in the light and cones help you see in the dark. They are situated in the eyes.