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Lighthouses (1316 words) |
 | In England beacons burning in church towers served as lighthouses until the 17th century, and in the earliest lighthouses, such as the Eddystone, first built in 1698, open fires or candles were used. |
| In lighthouses which are to shine only in one direction a combination of lenses, prisms and reflecting mirrors gives a concentrated and powerful beam. |
| Winstanley began building the first Eddystone Lighthouse on July 14th 1696, when William the Third was on the throne, and the first summer was spent in making twelve holes in the rock and fastening twelve great irons to hold the work that was to be done afterwards. |
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