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EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
1 M" e2 ?- w! D1 t2 h7 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。
1 U! P# ^7 d) Y- b4 X, s( U: B5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics.   
5 h3 ?/ F  [$ }- r4 DAMAZING!

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' c  t$ g9 x- U/ |tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!

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2 J9 H% {4 q. ?$ V. J% q公仔箱論壇Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
; \8 z0 a# B% |This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 2 |: |; Y% M( r# R1 |7 w% C
It is located in the city of Magdeburg, near Berlin.

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2 y: @- @! F2 E5 h0 n! mThe photo was taken on the day of inauguration.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。( U' R3 y; p& a  F: [, S0 J
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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% g, v4 k! o/ B& U5.39.217.77:8898Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
7 `0 e- r/ ^! q- T9 QOr just the weight of the water?
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$ ^/ b, V+ Y; [0 S4 @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。Answer:

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7 f. D* M9 x! z, J* w( E( B& |公仔箱論壇It only needs to be designed to withstand the weight of  the water! ; {# R$ j9 q# ?  \  |1 ]: r
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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The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。  C+ x; Q$ T5 a
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.8 O3 e$ |3 z# k$ K  U
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. - W. \/ Z' L2 b' W* a- ~
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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.

! L: X* ]6 p+ \! i, ~9 sTVBNOW 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。

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4 B5 P) Q! d4 W; v/ K" {  T; _, WTVBNOW 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。
6 v" z& u0 p3 o" _1 Q# ytvb now,tvbnow,bttvbTVBNOW 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。2 p- i6 w/ z7 _" r
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平壤核子能源研究所
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
9 q+ ?- w  l+ r! ^+ p/ Q: Z' {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。連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
5 F" i. i# O9 n6 Q" M' q  n也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。1 R+ u1 V9 p9 s1 l9 A
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。
/ S& ]- K0 [; c1 u6 uTVBNOW 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。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。
- M. Y* Z' n: V! ?: Y' R1 {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, {. O9 S' y3 S- A8 b& y
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。
/ ~8 k! C3 e0 u5.39.217.77:88982003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
& @3 F. z" b% O6 M& X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。
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  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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