In a lighthouse, the source of light is called the "lamp" (whether electric or fuelled by oil) and the light is concentrated, if needed, by the "lens" or "optic". Power so… 展开

Components
While lighthouse buildings differ depending on the location and purpose, they tend to have common components. A light station comprises the lig… 展开

Asia and Oceania
In Australia, lighthouses are conducted by the Australian Maritime Safety Authority. In India, lighthouses are maintained by the Directorate Gen… 展开

As lighthouses became less essential to navigation, many of their historic structures faced demolition or neglect. In the United States, the National Historic Lighthouse Preservation Ac… 展开