Major Lighthouse Components:
The primary components of a lighthouse (a definition list) are:
Light Source
The illuminating device or burning of fuel to create light
Lens
Usually glass, used to focus and increase light intensity
Lantern
The glass housing that contains both the light source and the lens
Gallery
A narrow, circular balcony that helps to provide external access to the lantern or other parts of the tower
Tower
The main structure, usually tall and cylindrical, that holds the lantern and its components up high for increased visibility
Keeper
Prior to the common occurrence of lighthouse automation in the 20th century, the most important component of all, responsible for all the necessary duties associated with the operation and maintenance of lighthouses
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