Some examples of palliative radiation therapy are: 1  Radiation given to the brain to shrink tumors formed from cancer cells that have spread to the brain from another part of the body (metastases). 2  Radiation given to shrink a tumor that is pressing on the spine or growing within a bone, which can cause pain.
The Pharos (Lighthouse) of Alexandria. Built: About 270 B.C. Location: On ancient island of Pharos in harbor of Alexandria, Egypt History: Upon its completion, the Alexandria lighthouse -- commonly estimated to have been about 400 feet high -- was one of the tallest structures on Earth.
Date unknown. Active; focal plane 13 m (43 ft); white flash every 5 s. 13 m (43 ft) round hourglass-shaped fiberglass tower, mounted on a square concrete pier. The upper third of the light tower is red, the lower 2/3 white.A photo is available, and Google has a satellite view. There are also several resorts in the area.gypt is famous as the home of the prototype of all lighthouses, the Pharos of Alexandria, built in the early third century BC. At nearly 120 m (390 ft), it was as tall as a modern skyscraper and much taller than any modern lighthouse.