EVER SEEN A RIVER OVER A RIVER?

lilitan008

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If you are not a Physics person, read on and learn a fact of physics.   
& H( v8 M) y# d3 D3 ]3 ptvb now,tvbnow,bttvbAMAZING!
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Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ M  h( {* g. u. \8 `公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! D6 |- _; B0 B9 ]
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.5.39.217.76* B0 u8 E0 l! y; I  ^3 Z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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4 g* ]' I% _$ l# z% h( BQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇& `' F2 p* Y) @. a6 N& u
Or just the weight of the water?   l# N9 S- L, V9 ]

8 y8 w6 C0 Y" x: k/ M% N5.39.217.76Answer:
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It only needs to be designed to withstand the weight of  the water! 公仔箱論壇6 A( k2 X! T9 S2 ~
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb* `" s- w4 c7 D- j0 T# T- H& J

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The Incredible Magdeburg Water Bridge in Germany
) F  y2 l+ A1 y. A) K# kThe 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.5.39.217.76( p  O# }5 Y3 g8 k  @1 s
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.
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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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busyfun

這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出
$ \' H1 V! I- g6 B- e" K" s公仔箱論壇連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
* L  y3 x  g% l) jTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
7 c1 h" h3 U4 G; qtvb now,tvbnow,bttvb隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。公仔箱論壇9 r( {: A+ h$ y
德國重新統一後，隨著道路交通重大工程規劃的編制，水橋再次成為一個優先專案。
2 `, M8 k8 ^; \2 S) R- U# E: U於1997年開始建造，經過 6 年，耗資 5 億歐元，2.4 萬噸鋼材和 6.8 萬
4 X2 ~8 B% u# E( K# G立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。 . p9 b8 y  P1 K6 u
2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和公仔箱論壇* Q9 H$ H/ J( q; @6 e
易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。

swyip21

多谢您的分享！

Mimisan

first time heard & saw it, thanks for sharing, thanks tvboxnow!!