Canals and navigations are human-made channels for water. In the vernacular both are referred to as 'canals'. The main difference between them is that a navigation parallels a river and shares its drainage basin, while a canal cuts across a drainage divide.

Types of artificial waterways

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 vessel uses the calm parts of the river itself as well as improvements, traversing the same changes in height.

A true canal is a channel that cuts across a drainage divide, making a navigable channel connecting two different drainage basins.

Most commercially important canals of the first half of the 19th-century were a little of each, using rivers in long stretches, and divide crossing canals in others. This is true for many canals still in use.

Structures used in artificial waterways

Both navigations and canals use engineered structures to improve navigation:

Latest News for: Discovery canal


Perficient Anuncia la asociación con el Equipo Latinoamericano de Constructores de Bots, RioBotz

The Joplin Globe 17 Nov 2021
SAN LOUIS--(BUSINESS WIRE)--nov. 17, 2021--. Perficient, Inc. (Nasdaq ... Este comunicado de prensa trata sobre multimedia. Ver la noticia completa aquí. https.// Minotaur Robot (Photo ... BattleBots se transmite a más de 150 países y se espera que la sexta temporada salga al aire pronto en el Canal Discovery ... ....

Iraq: 2,700-year-old wineries and Assyrian murals discovered in Nineveh

Ruptly 29 Oct 2021
Italian and Iraqi archaeologists announced the discovery of wineries dating back more than 2,700 years, including huge murals in an irrigation canal, in two archaeological sites in northern Iraq....

Archaeologists find 2,700-year-old wine press in northern Iraq

The Arab Weekly 25 Oct 2021
DOHUK, Iraq--Archaeologists in Iraq revealed Sunday their discovery of a large-scale wine factory from the rule of the Assyrian kings 2,700 years ago, along with stunning monumental rock-carved royal reliefs ... A view of carvings discovered on the walls of an ancient irrigation canal by a team of Kurdish and Italian archaeologists....

Abacus Media Rights Inks Sales For ‘Four Hours at the Capitol’

Videoage 19 Oct 2021
Capitol earlier in 2021 ... Four Hours at the Capitol has been sold to CANAL+ France, ViacomCBS Australia, Discovery New Zealand for Three, VPRO in the Netherlands, VRT in Belgium, DR in Denmark, SVT in Sweden, NRK in Norway, YLE in Finland, SWR in Germany, and Channel 8 in Israel....

3 Egyptian health ministry employees arrested over dumped COVID-19 vaccines

Arab News 11 Oct 2021
CAIRO ... The Egyptian Public Prosecution ordered the detention of a pharmacist, storekeeper, and driver following the discovery of the discarded drugs by a canal in Minya, Upper Egypt, south of the capital Cairo ... Investigators reported that 13,400 doses of the dumped vaccine were no longer suitable for use ... .......

Maths Week Ireland 2021 set to attract more than 250,000 young people

The Irish Times 08 Oct 2021
Maths Week Ireland (MWI), which takes place from October 16th-24th, has announced a wide range of events for young and old throughout the island of Ireland ... ... The walk from Dunsink Observatory to Broombridge along the Royal Canal in Dublin celebrates a famous mathematical discovery by Sir William Rowan Hamilton in 1843 ... Action-packed programme ... ....

Locktoberfest slated for Saturday

Lockport Union-Sun 30 Sep 2021
These fee-free tours will begin at Erie Canal Discovery Center, 24 Church St., at 11 a.m., noon and 1 p.m ... Throughout the festival, Erie Canal Discovery Center will be open and live music will be played on a stage nearby....

Trial of man accused of wife’s murder adjourned until next year

AOL 29 Sep 2021
The trial of a man accused of murdering his wife is set to be heard nearly two years after she was allegedly killed, following a six-month adjournment ... Please click here to do so. The discovery followed exhaustive police searches, which included draining stretches of the Worcester and Birmingham canal near the lane ... ....

Bikes, hikes, Halloween treats, Town Notes

The Barnstable Patriot 29 Sep 2021
Gallo Ice Arena in Bourne through the Cape Cod Canal Youth Hockey group is offering the program, as well. Discovery Center Open House. Mass Audubon’s Long Pasture Wildlife Sanctuary will host a free community open house for its new Discovery Center on Saturday, Oct....

Gardai appeal for witnesses as body of man in his 20s found in Grand Canal

Belfast Telegraph 27 Sep 2021
Gardai are appealing for witnesses after the discovery of a man’s body in the Grand Canal ... Members of An Garda at the scene next to the Grand Canal at Dolphins Barn in Dublin where the body of a man has been found ... Members of An Garda at the scene next to the Grand Canal at ......

Gardaí appeal for witnesses after body found in Grand Canal

RTE 27 Sep 2021
Gardaí in Dublin are appealing for witnesses following the discovery of a body of a man in the Grand Canal in Dolphins Barn....

‘When I realised it was Keisha, I dropped to my knees’ – dog owner’s distress after ‘tortured’ pet found dumped in canal

Irish Independent 27 Sep 2021
A Dublin man has spoken of his shock and distress after discovering the remains of his missing dog in a sports bag that had been thrown into the Grand Canal in Clondalkin ... However, two weeks after she first went missing, the dog’s decomposing remains were found in a sports bag dumped in the Grand Canal at the 11th lock in Clondalkin....

breaking Man’s body recovered from Grand Canal

Irish Independent 26 Sep 2021
Gardaí are investigating the discovery of a man’s body in Dublin’s Grand Canal ......