Canal

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Published on December 9, 2021 1:58:55 PM ● Video Link: https://www.youtube.com/watch?v=dtoddmflCCc

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Canal, by Wikipedia https://en.wikipedia.org/wiki?curid=5623 / CC BY SA 3.0

#Canals
#Coastal_construction
#Water_transport_infrastructure
#Bodies_of_water
#Infrastructure
The Alter Strom, in the sea resort of Warnemünde, Germany.
The Royal Canal in Ireland.
Small boat canals such as the Basingstoke Canal fuelled the industrial revolution in much of Europe and the United States.
Bridge on the Naviglio Grande, in the town of Cassinetta di Lugagnano, in Italy Canal in Broek in Waterland, Netherlands.
Canal in Venice.
Canals or artificial waterways are waterways or engineered channels built for drainage management （e.g. flood control and irrigation） or for conveyancing water transport vehicles （e.g. water taxi）.
They carry free, calm surface flow under atmospheric pressure, and can be thought of as artificial rivers.
In most cases, a canal has a series of dams and locks that create reservoirs of low speed current flow.
These reservoirs are referred to as slack water levels, often just called levels.
A canal can be called a navigation canal when it parallels a natural river and shares part of the latter's discharges and drainage basin, and
leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in its valley.
A canal can cut across a drainage divide atop a ridge, generally requiring an external water source above the highest elevation.
The best-known example of such a canal is the Panama Canal.
Many canals have been built at elevations, above valleys and other waterways.
Canals with sources of water at a higher level can deliver water to a destination such as a city where water is needed.
The Roman Empire's aqueducts were such water supply canals.
Saimaa Canal, a transportation canal between Finland and Russia, in Lappeenranta A navigation is a series of channels that run roughly parallel to the valley and stream bed of an unimproved river.
A navigation always shares the drainage basin of the river.
A...