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.
Just east of Alexandria, in ancient times (where Abu Qir Bay is now), there was marshland and several islands. As early as the 7th century BC, there existed important port cities of Canopus and Heracleion. The latter was recently rediscovered under water.