History of the lighthouse

The video explores the evolution of lighthouses from ancient times to modern day. Initially, fires were used to guide ships, but their limited visibility led to the creation of lighthouses, starting with the Lighthouse of Alexandria. Over time, technological advancements like the Fresnel lens significantly improved lighthouse efficiency, allowing them to be seen from greater distances. In the 19th century, lighthouses adopted electric lights and rotating lenses, enhancing their visibility and effectiveness.

What advancements were made in lighthouses during the 19th century?

How do modern lighthouses make their light more noticeable at night?