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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 公仔箱論壇0 O. m; h. ~, J% U& Y3 ?

5 b2 ?/ \5 \  q( Q4 F  X. btvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.   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。7 n2 e5 R, }* w; K5 z; h
AMAZING!
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Even after you see it, it is still hard to believe!

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1 L7 n  V5 O- q$ H6 \# F: n公仔箱論壇
% F; M! c* h: b2 C2 y; z! 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!   L$ P/ s( T1 M3 L$ |* `
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 7 u' M' g& n8 G! z) X& Q" }: N! N
It is located in the city of Magdeburg, near Berlin.

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6 v" G' B) I: K: r( J5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇0 k4 R: i; U7 @0 U& O
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。8 W# E: X* j8 D7 ~
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Question:

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) A: L7 W& [: U+ {5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,1 ]; U( \3 g3 U/ ]- p" [
Or just the weight of the water? ; o1 f7 C3 P, z3 ~3 ?$ w0 c- w

, \4 u4 \* M3 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。Answer:

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It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb  f# u7 d2 b4 `2 y& D0 b
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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" B5 L8 R# s( s7 G3 A- L. U* I8 r公仔箱論壇
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, _% d' \1 |( J0 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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- T, u+ Z# D6 A& w. i* G6 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。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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$ `3 `$ x0 `) E% \0 yTVBNOW 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。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。7 W8 U+ I' l6 Y  U$ e8 {
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。+ g% W* N/ B) O  i* `! R6 T" U: n% l

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( o. M& f9 V! N" A+ ]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。
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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公仔箱論壇# y: |3 n& E8 u6 y( o4 t: N- b
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇公仔箱論壇3 R  E) i9 g. k6 l9 V
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
3 r+ c: R! ]' U1 m. A7 K, t2 N: i' ftvb now,tvbnow,bttvb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。tvb now,tvbnow,bttvb$ G" y, U6 m  y7 n" T
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 B- ]& l; [9 o; K4 m# O& 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。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。$ y* o3 I. F" K) P  W6 N6 r
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。 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 W0 V  K0 S, U1 U4 g: Q
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5.39.217.76, z+ E$ v4 N+ o5 y7 ?8 I
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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