Canal

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

Edit

Ancient Greek Temple Remains Found Submerged Off Egypt Coast

Ancient Origins 25 Sep 2023
Along a canal off the coast of Egypt in the Mediterranean, archaeologists have made a remarkable discovery in the ancient port city of Thonis-Heracleion in Egypt ... After excavation, an archaeological diver gazes at the huge blocks of the Amun temple, which fell in the mid-second century BC in the South canal of Thonis-Heracleion....
Edit

Mars and Our Search for Meaning: A Planetary Scientist’s Love Letter to Life

Brainpickings 18 Sep 2023
Reverencing the long arc of transmuting theory into truth, Johnson traces how we went from the illusory Martiancanals” of the early observers to the discovery of real water-lain sedimentary rocks by our space probes, how all the things we got wrong paved the way for ......
Edit

Lehigh County former factory makes TV appearance. Find out which one

The Morning Call 12 Sep 2023
The Discovery channel aired a segment on the plant Sept. 5 during. “Mysteries of the Abandoned ... Discovery spokesperson Michelle DiMartino said the segment was scheduled to air again 11 p.m ... Sept. 19. In addition, the show can be seen via go.discovery.com online ... The segment credits the National Canal Museum and Lafayette College for assistance ... ....
Edit

Vietnam-era Navy Seabees reunite in Niagara

Niagara Gazette 07 Sep 2023
“So I said, ‘I’ll host it.’”. Plans include a catered dinner tonight at Art and Irene’s home, a visit to Lewiston, a canal cruise, a tour of the Erie Canal Discovery Center and the Tiffany windows at First Presbyterian Church across the street, a possible visit to Medina Railroad Museum, and a catered dinner Friday night at the McCollum residence ... ....
Edit

Vietnam-era Navy Seabees reunite in Lockport

Lockport Union-Sun 06 Sep 2023
“So I said, ‘I’ll host it.’”. Plans include a catered dinner tonight at Art and Irene’s home, a visit to Lewiston, a canal cruise, a tour of the Erie Canal Discovery Center and the Tiffany windows at First Presbyterian Church across the street, a possible visit to Medina Railroad Museum, and a catered dinner Friday night at the McCollum residence ... ....

Most Viewed

FILE - In this handout photo released by the Russian Defense Ministry Press Service released on Saturday, May 28, 2022, a Ka-52 helicopter gunship takes off for a mission at an undisclosed location in Ukraine. Russian helicopter gunships have used a new anti-tank missile called Vikhr (Whirlwind) that has an extended range, allowing pilots to strike Ukrainian armor while staying out of reach of air defenses.
AP / Russian Defense Ministry Press Serv

Ukraine a disaster for lethal weapons nonproliferation

Asiatimes | 25 Sep 2023
Bill Gates, Co-Chair of the Bill & Melinda Gates Foundation talks to the media
AP / Michel Euler

The CRIME of ALL TIME !!

WorldNews.com | 24 Sep 2023
×