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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
* r/ X9 ~: v9 J  gTVBNOW 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。tvb now,tvbnow,bttvb. B/ w1 P8 A' y* }  V3 s
If you are not a Physics person, read on and learn a fact of physics.   5.39.217.76- S' u, F1 Z, ~" B
AMAZING!

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$ s" [* m# M; Y$ P0 X* x2 Rtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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5.39.217.76! r; C0 i' k9 ]$ n, v) x0 N
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。0 y0 i. Q. {1 h0 Y# q7 z4 n: q0 e% L
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。+ I- R6 i( Y5 n% X0 @: b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。5 c' q, |5 [  r
It is located in the city of Magdeburg, near Berlin.
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$ d, i! m  Y$ N% `The photo was taken on the day of inauguration.2 F$ K3 ^! g& J0 L- U6 K2 b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists." y7 J# h3 i3 v1 P8 J. y% k

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; ~& s8 F0 m% atvb now,tvbnow,bttvbOr just the weight of the water? 公仔箱論壇5 R# [+ L  Z/ h2 @$ ]

6 J3 b# U. r# [' F: J  ~tvb now,tvbnow,bttvbAnswer:

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It only needs to be designed to withstand the weight of  the water! 5 h3 C- R; @2 I- Y
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 Germany
' G: i5 t% e2 g  f/ w4 }2 fThe 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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% ^9 K; ?- G3 c/ wConstruction 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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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
* N2 J0 _1 a# A% E5.39.217.76連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
( a  q$ |  S# Z: xtvb 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 ~, L; V  Z% w8 K% L; B3 A; {5 s
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。
3 i+ ]" D: Z- M0 @  v' b2 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。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。tvb now,tvbnow,bttvb. i% b. R3 M$ [, l5 y
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
- m$ Y6 c: l' O2 Y" B7 ]" 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。 tvb now,tvbnow,bttvb4 n# b" `4 e* M* h1 b
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇; c. i$ F8 V! O9 r2 v5 Y( ~
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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