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
Sandvigodden Lighthouse Sandvigodden Lighthouse Sandvigodden Lighthouse () is a coastal lighthouse in the municipality of Arendal in Aust-Agder county, Norway. The light is located on the southeast shore of the island of Hisøya on the edge of the village of Sandviga. The light marks the west side of the entrance to the Galtesundet strait, which leads north to the town of Arendal. The lighthouse was originally built in 1844. In 1934, a new lighthouse was constructed right in front of the older tower. The new tower is tall and is painted white with a red top. The light sits on top at