John Smeaton He pioneered the use of 'hydraulic lime' (a form of mortar that will set under water) and developed a technique involving dovetailed blocks of granite in the building of the lighthouse. His lighthouse remained in use until 1877 when the rock underlying the structure's foundations had begun to erode; it was dismantled and partially rebuilt at Plymouth Hoe where it is known as Smeaton's Tower. Deciding that he wanted to focus on the lucrative field of civil engineering, he commenced an extensive series of commissions, including: Smeaton is considered to be the first expert witness to appear in an English
Tangasseri Lighthouse oil lamp. In 1902 they commissioned Tangasseri Lighthouse, which by 1930 had suffered cracks in the tower that required jacketing masonry to be installed. The light source was modified in 1932, 1940, 1962, 1967, 1990 and 1994. In 2016, the Tangasseri Lighthouse got an elevator facility for its visitors. The lighthouse is located on the coast at Tangasseri in Kollam city and is the one of the locations in India that still maintains Anglo-Indian culture. Tangasseri is home to remnants of an ancient Portuguese built coastal defence, the St Thomas Fort, a Portuguese Cemetery, a canal, the ancient Port of