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, and some canals were later drained and used as railroad rights-of-way.
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.
Canals on Mars
For a time in the early 20th century, it was believed that there were canals on Mars. This belief was due to a combination of errors: an optical illusion caused the astronomer Giovanni Schiaparelli to think he saw channels on the planet's surface, and the Italian word for channels, canali, was misunderstood by English-speakers.
See
Canals is a commune in the Tarn-et-Garonne département in France.
Referenced By
Admiralty law | Athens, Ohio | City Networks | City network | County Fermanagh | Coventry Canal | DeWitt Clinton | De Witt Clinton | Fermanagh | Grand Union Canal | Guilin | Gweilin | History of discovery and distribution of the remains of Aegean civilization | History of rail transport | Inclined plane | Industrial archaeology | Joensuu | Kweilin | Leg it | Liskeard & Looe Union Canal | Liskeard and Looe Union Canal | List of Conservation topics | List of rivers | List of transport topics | List of transportation topics | Manchester | Manchester, England | Manchester, UK | Manchester, United Kingdom | River | Rivers | Rivers of the World | Transport basic topics | WikiProject Conservation worldwide
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