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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 ; l& W3 [7 O. P$ U; ?

* K& }/ X) E1 U) V' v  z$ 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。If you are not a Physics person, read on and learn a fact of physics.   
! I* E7 ?$ r, g- q* ]5.39.217.76AMAZING!
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8 ]7 H+ H" |0 @. F: C% q9 jEven after you see it, it is still hard to believe!
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" U- ^- G, h& g+ X$ ~1 Y5 w  H8 u: Q3 fMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! # C) W3 T% @+ f+ H, Q+ |4 Y; p! c
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇3 P) V  ^& h( K, ]4 O6 W
It is located in the city of Magdeburg, near Berlin.
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* S( j% \: V- o. l1 vThe photo was taken on the day of inauguration.
0 r) C( T$ t& a3 j2 N: r* Q公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
5.39.217.76/ u0 }- J4 g8 q4 }

1 n- b) p% N5 aDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( `# u! Z+ i4 J' N, \公仔箱論壇Or just the weight of the water?
% w, m/ J% H4 P- wtvb now,tvbnow,bttvb5.39.217.76/ F& G3 |; j. `2 F
Answer:
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。+ K8 i& E* N  G, R1 d0 p
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It only needs to be designed to withstand the weight of  the water! 公仔箱論壇8 T. U. O" `7 H
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。- o% q2 s6 m9 z' h& 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.
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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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$ V  b& T# M- b# I* t5 w2 b5.39.217.76Construction 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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# R" @1 P+ D7 c, NTVBNOW 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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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
; ?8 n$ q- V% m1 I. 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" a) M6 @: B5 X& f) a
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。公仔箱論壇+ X) g3 J/ [9 Z) I
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。
6 o. A0 f2 Y* a9 kTVBNOW 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。公仔箱論壇* d  W& u9 D. q4 Z9 a% j% F
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 萬7 C) `1 j' g' \6 `0 w% S2 `
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。
; x0 S" H3 y7 M7 C5 ]' E" p+ R) z" y3 a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
- Y2 Y% g- ]5 u& ?* g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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