Lighthouses

Lighthouses HISTORY OF LIGHTHOUSES Lighthouses, a lighthouse by definition is a structure that produces and projects light by night, and serves as a visual marker during the day. They are used by ships traveling coastal waters to mark the entrances to harbors, and warn of rocky ledges or reefs. They can also be a simple visual reference that land is near, and to be aware of the dangers that go along with this. Lighthouses are not simple beacons, they differ from a simple beacon in that they provide living space for a light keeper, although this does not hold completely true today. Many modern lighthouse are now equipped with automatic electronic lights that do not require a full time light keeper. In this paper I will talk about the history of lighthouses, their technology and how it has advanced, and look at some historical lighthouses of the past and present. Lighthouses have been around for a very long time, in fact they can be traced back to before the time of Christ. As far as I could find the earliest known reference to a lighthouse was in Homers Iliad back in 1200 B.C. They where constructed by light, lighthouses, lighthouse, built, one, beacons, lens, lights, island, century, long, glass, fresnel, until, time, ships, modern, flashing, electric, block, away, about, world, two, simple, several, replaced, point, over, miles, longer, keeper, found, first, find