EVER SEEN A RIVER OVER A RIVER?

lilitan008

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( ^( f) k# l4 d公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   
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Even after you see it, it is still hard to believe!" z. d+ b& B. ~0 U/ v

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4 ^4 g# L" B+ W) {/ R0 ftvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76% l( @% g: m  D
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
! {) ~) d6 z" P公仔箱論壇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: [4 e9 ]0 m$ l* E
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76+ B/ C3 ]4 B) K1 L8 Q+ f" e% _

0 [+ q/ p# X, b1 S, |* |Question:5.39.217.76, C" ?* L& p* }" s& h' T; g' F

/ N& h- c3 U* c. d/ c+ d' PTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% d* a  _8 K3 I' s9 l公仔箱論壇Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water!
1 ?" _) j: K  e4 l* ^+ ]5.39.217.76Why? 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- _. e) m$ ?* X) f7 x

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The Incredible Magdeburg Water Bridge in Germany
) f8 c. [' N6 SThe 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. ?; o9 `* i4 P3 Y
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. ' n+ W/ d2 u' L6 `& U/ g* A5 V

7 Z8 v2 ^. Q& k8 D0 x* D2 IConstruction 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; K# [4 @$ x, p% `
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
% [9 L+ u8 G: Z: B* w: P; G公仔箱論壇也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
- {9 p2 s1 }- n9 c- x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。
  L5 t; p. t2 G公仔箱論壇德國重新統一後，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。
. h$ w" g& O; [4 [4 O9 y6 Z4 ]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 萬公仔箱論壇5 G* M. a% y! B2 o3 j0 h! o3 ?' W! S
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。
5 i9 B: t5 M' }3 f; ~, h2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和tvb now,tvbnow,bttvb( ^) X5 a* T8 \- ^' N9 [
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!!