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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 5.39.217.763 \  ?0 F  O: n8 y% X2 n( ]& N

5 w0 r6 F; v( s3 s( xIf you are not a Physics person, read on and learn a fact of physics.   
1 r( `) F+ k7 t' G2 x! O5.39.217.76AMAZING!

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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!
' `! Q/ A& n1 x6 {) xThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # ~0 m' n7 u$ {+ ~
It is located in the city of Magdeburg, near Berlin.
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6 f" K0 o9 O" t- Y% ITVBNOW 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。The 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。/ M4 p' x* F! u7 J
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
: G, J1 [; J3 X" k+ k; b% y" iOr just the weight of the water?
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Answer:
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0 v3 D- p1 x% V4 z$ C公仔箱論壇It only needs to be designed to withstand the weight of  the water!
6 A% k) q7 s) \) M+ ]/ ztvb 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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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, U$ i; Q. `9 q6 `) s
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. 5.39.217.76) a, r% T- T  x3 v7 v
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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.
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tvb now,tvbnow,bttvb& g- P7 n. w+ Y: a4 P: a
tvb now,tvbnow,bttvb8 Y" V  s# W' `  H0 n

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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* ?" [7 |* p! O6 d
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
! H8 G4 k1 S4 h. Q1 b公仔箱論壇也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
5 w* M( x9 L+ [. XTVBNOW 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。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。5.39.217.76& H) Z4 |) m; ]! R0 s( J
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。5.39.217.76; |8 F+ }- d0 F* z  g) v6 u4 N: L1 X$ _
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
+ k% M& n$ ^) |3 @# W7 K公仔箱論壇立方公尺混凝土,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 E, k; q9 u( b% B9 B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
$ W1 ^7 m1 m$ d/ C" c+ [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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