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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
6 I% m9 o9 V* j6 J公仔箱論壇+ C* [+ K( M- ?8 U8 ?
If you are not a Physics person, read on and learn a fact of physics.   5.39.217.766 H+ J+ Z# U" q% H
AMAZING!
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$ D- [& c, M: Y; mtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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公仔箱論壇. h* D0 t# Q4 U/ Q- f  i
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: z2 @; i7 G* F* I1 `  E; _5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
# _* V, R- M3 @) {1 P& P, s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.
6 C  K6 Z7 u9 V8 J$ j% F5 U/ xTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,8 |9 }$ G# z1 k9 ]1 C/ m  u' h
Or just the weight of the water? # I6 l, x6 i) P4 }
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Answer:

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It only needs to be designed to withstand the weight of  the water!
$ p3 A. M/ J- dtvb now,tvbnow,bttvbWhy? 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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  y2 d) n) T) H0 \+ d8 Y2 U) ~4 u( x公仔箱論壇

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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。' Y: \8 D/ k7 M/ G6 e
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.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。* }+ n3 a8 `2 v& S5 {3 O
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. 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。: A" _2 B0 a8 z2 Y( B+ i1 q5 C0 w

7 ?. b2 }1 E! m3 X% d; i/ t公仔箱論壇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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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。3 v* ^0 t* r" c1 y& `

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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
- A$ R0 k- K" {3 ]" L7 @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
# H7 d5 ~! f2 n$ s1 Ktvb now,tvbnow,bttvb也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.760 Q* {3 [' @) ~* h5 C, ~. O& 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。" H7 {; V4 i8 E: b5 d# `5 z5 f% D
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。9 n$ |1 k) L, c3 x& V
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
* q! J/ f) J) b* p9 A: Ytvb now,tvbnow,bttvb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。 公仔箱論壇9 K% g# f5 h* [+ a& {
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
  X1 C" R. V1 Y4 }. ]5 S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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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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