Lighthouses & Semaphores

Off the Path lighthouses and semaphores!

This group is dedicated to all Explorers who want to join the ExploGuide project to visit and share off the path semaphores and lighthouses around the world

A lighthouse is a tower (or building) designed to emit light from a system of lamps and lenses or, in older times, from a fire. It is used as an aid to navigation and to pilots at sea or on inland waterways.

In Greek, Sema means « sign » and Phoros means « door ».

On land, a semaphore is a communication system, invented by the Chappe brothers in France. On the sea shore, a semaphore was a watch tower destinated at alerting the continent with optival signals any ennemy attack. But later, during the 19th century, Semaphores were mainly used to communicate with ships.

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