Smeaton's Tower stood were becoming eroded. Each time a large wave hit, the lighthouse shook from side to side. Smeaton's Tower ceased operation in 1879 with the illumination of Douglass's Tower on an adjacent rock. In 1882 the upper part of Smeaton's Tower was dismantled and rebuilt as a memorial to Smeaton on a new base on Plymouth Hoe, replacing the triangular obelisk that had been built there by Trinity House as a navigation aid in the early 19th century. It was opened to the public by the Mayor of Plymouth on 24 September 1884. The foundation and stub of the old
Lighthouse, Chennai The new lighthouse was unveiled on 10 January 1977. An electrical lighthouse equipment manufactured by BBT, Paris was installed on the new tower, which maintains a range of 28 nautical miles for vessels and is one of the tallest lighthouses in the country. Coconut oil was considered the best fuel for a lighthouse lamp because it made the light burn bright in the lighthouse. Gas lights were used later followed by dischargeable lamps. In the beginning, lighthouse lamp had a steady flame. When ships began to confuse this with city lights, it was decided to use a flickering light in