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Lighthouses
exist since ages and trill today have the same aim, prevention
of crashes. There are different types of building; they don’t
all have the same construction. The usual example is a tall
tower with a huge bright bulb found at the very top which
rotates showing the navigators their actual position towards the
coast. When the light is on, it goes round and round. It can be
seen miles away from its location. Lighthouse's light goes on
when the sea is particularly rough, such as during a storm or
wiliwilies. They are very useful for ships while wanting to
anchor at any harbour. |
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