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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 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。  f- z* y, H% w# v/ R1 e" a7 X( O" X

- X+ b" B# {/ p* h5.39.217.76If you are not a Physics person, read on and learn a fact of physics.   4 {7 s- J$ z( C8 i* T% G
AMAZING!
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; D6 x& e. b7 `& t5 U公仔箱論壇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!
6 }9 X0 k* O' j$ i" m2 |This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) Y: J3 L6 K6 z) n/ T' Q' h+ p
It is located in the city of Magdeburg, near Berlin.
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& D% B5 m: p( e2 Y! gtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
( f: i& D! n# u: U& s  T  f+ k5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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; s" h$ d6 K, a9 n" G- U公仔箱論壇Question:
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, U! t# ^% {% Z1 f2 L4 t5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。* f- ~1 G' w: d9 i7 D0 G6 Y
Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water! & ^) r2 w+ u' q" [* a( `- ~
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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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。! D9 ?: X! J' Y! }+ ^0 q" d
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The Incredible Magdeburg Water Bridge in Germany
+ _: L) J3 J& Q, o% h3 j4 w9 rThe 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。7 G/ t" ]4 i. O' F" R7 G$ b6 D4 ~4 r
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) a6 S4 W. D) B- |- i( [. D
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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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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。, }* u( f. Q# ~, J# X, l7 F; f
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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! r, W* y+ t; d0 s/ j
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
% m; m: }. S: e- D. C, e1 I也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。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' r# N6 }9 A
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$ E8 \( q. Z$ Y' T0 J& Q3 k9 {$ i! L
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,bttvb1 L; {: q5 q: P" r$ \
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。/ ?$ M/ ]8 w- B  l
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。# Z( y2 L2 T. y# \9 I" t
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。% \' t; o$ X- d
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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