Smeaton's Tower Smeaton's Tower Smeaton's Tower is a memorial to celebrated civil engineer John Smeaton, designer of the third and most notable Eddystone Lighthouse. A major step forward in lighthouse design, Smeaton's structure was in use from 1759 to 1877, until erosion of the ledge it was built upon forced new construction. The tower was largely dismantled and rebuilt on Plymouth Hoe in Plymouth, Devon, where it stands today. The Royal Society recommended Smeaton for the task, and he modelled the lighthouse on an oak tree. He rediscovered the use of hydraulic lime, a form of concrete used in Roman times. The
Culture of the United Kingdom Scottish road builder John McAdam invented "macadamisation" for building roads with a smooth hard surface. In 1901, Edgar Purnell Hooley added tar to the mix and named it Tarmac (short for tarmacadam). Probably the greatest driver behind the modern use of concrete was Smeaton's Tower built by John Smeaton in the 1750s. The third Eddystone Lighthouse (the world's first open ocean lighthouse), Smeaton pioneered the use of hydraulic lime in concrete. Scotsman Robert Stevenson constructed the Bell Rock Lighthouse in the early 1800s. Situated 11 miles off east Scotland, it is the world's oldest surviving sea-washed lighthouse. Portland cement, the