EVER SEEN A RIVER OVER A RIVER?

lilitan008

公仔箱論壇5 ?  T- p8 n$ A/ @& W

% S! M" _/ z% c6 aIf 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!
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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。- y2 o, ~8 r! X* o2 H; l
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb* M5 P" Q/ G2 V+ h- A: n4 d
It is located in the city of Magdeburg, near Berlin.
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$ r, ~! C% K* Z# Y& _5.39.217.76The photo was taken on the day of inauguration.
% C5 v$ ^: w* I: R! t$ @To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.3 A0 F; g7 j( ~, R8 i! v* I' P

1 E$ l5 [" w% M& }7 m$ J/ w% ?tvb now,tvbnow,bttvbQuestion: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。$ U0 f% Q! z4 M/ T8 z8 N7 {
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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Answer:
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! @# O/ V& P! [tvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of  the water! 5.39.217.76: p2 y( [. S! T- C$ Q5 g/ \. ^4 _
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
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' l4 t* _1 g  Q1 R6 Rtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
. L# O! e5 G% xThe 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.
) j6 S/ V% \- d# V) Q5 J7 A; G1 BThe 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. 1 h* f- u4 K7 E6 _& D
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' l5 m  m' r! B3 {1 d6 k9 |, p" J" LTVBNOW 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。5.39.217.76/ d+ `- B" g8 x1 Q0 c$ _$ m

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公仔箱論壇+ T& y" C3 y) V! A4 N( o! a
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇tvb now,tvbnow,bttvb: `) \  Y6 {9 q
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
- U; W9 B. H; y+ o' F' R. U; ?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。
9 p4 \9 l0 s& J4 E& H, `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。
! W* s( |  z  p/ }公仔箱論壇於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& }2 u9 m1 j" D. F6 T+ e
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。
4 ^1 v- [0 M: c0 t& ]公仔箱論壇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
, h: S- t( y; K2 k# `. A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!!