biology daily - the biology and biochemistry encyclopedia
biology daily articles and research Encyclopedia Dictionary Forums biology research links Weblinks Pictures Articles Blogs Newsletter

Canal

Canals are man-made waterways, usually connecting existing lakes, rivers, or oceans. They are used for transportation, often by barges or narrowboats on smaller canals, and by ships on ship canals that connect to the ocean. Inland canals preceded the development of railroads during the Industrial Revolution; some canals were later drained and used as railroad right-of-way.

Some rivers have also been 'canalised' to make them navigable.

Irrigation canals are man-made waterways for the delivery of water and preceded the use of transportation canals.

Canals have found another use in the 21st century, as wayleaves for fibre optic telecommunications networks.

Miscellaneous


For a time until the early 20th century, it was believed that there were canals on Mars.

Famous canals and lists

See also



Canals is a commune in the Tarn-et-Garonne département in France.



07-14-2008 23:18:10
The contents of this article are licensed from Wikipedia.org under the GNU Free Documentation License. How to see transparent copy
BiologyDaily.com 2005. Legal info   Privacy