Ever See a River Over a River?
If you are not a Physics person, read the last paragraph and learn a fact of physics.
Even after you see it, it is still hard to believe!
Water Bridge in Germany .. What a feat! Six years, 500 million euros, 918 meters long . . .. now this is engineering!
This is a channel-bridge over the River Elbe and joins the former East and West Germany ,
As part of the unification project. It is located in the city of Magdeburg , near Berlin .
The photo was taken on the day of inauguration . . .
To those who appreciate engineering projects, here's a puzzle for you armchair engineers
. . . and physicists.
Question:
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
Or just the weight of the water?
Answer:
It only needs to be designed to withstand the weight of the water!
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded Saturday, April 23, 2011 The Incredible Magdeburg Water Bridge in Germany
The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal , and allows ships to cross over the Elbe River . At 918 meters, it is the longest navigable aqueduct in the world.
The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo.
Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003.
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From: WW
To: bellringer@fourwinds10.com
Sent: Sunday, July 31, 2011 2:43 PM
Subject: Fw: Ever seen a River Over a River?