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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
# S6 ^6 x* N8 ]1 x1 pTVBNOW 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  E+ F& x$ [5 |% q
If you are not a Physics person, read on and learn a fact of physics.   5 A( f6 j8 U- n. C
AMAZING!

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' o  ?! v" k/ y5.39.217.76Even after you see it, it is still hard to believe!
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。+ d" s' u3 F! Z3 z3 ^& g4 K3 D# S: H

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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb) K9 g/ ]% b1 W' k: P
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
' j* ^" T  w& P; J7 H7 F; I8 r5.39.217.76It is located in the city of Magdeburg, near Berlin.
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- t' o  v4 C( r# |1 mThe photo was taken on the day of inauguration.
7 N2 Y$ n: I6 D' q* BTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.9 I' F' z- r* `+ D' j5 K
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Question:
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4 c- F* x7 T& T5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ f1 u: T" Q0 {; c) Y5 WOr just the weight of the water?
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# B0 @; N# m3 m, cAnswer:
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It only needs to be designed to withstand the weight of  the water!
$ o( P% a+ O0 P3 B- R3 WWhy? 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。4 c& k+ |' i% k
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.tvb now,tvbnow,bttvb  |8 V" b& Y* s, u
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. ! i% Z2 `1 R1 \. _' A% \. w
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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.
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。* d' S$ V+ S# G6 U( Z- u

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' ?, e7 ~$ z0 R& U  aTVBNOW 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。( v7 _- ~; S  b+ W; n" {
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tvb now,tvbnow,bttvb: |8 X( W/ P, T% R/ g, ]

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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
+ w6 ~/ x  \( [5.39.217.76連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇5.39.217.763 r7 v: _* i2 A' f5 b8 ~
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
" _# a( S) G1 W$ k" ]4 \. O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+ ?7 z. Y* O( q# d$ l* `, a. W
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,bttvb6 G: L' `" t( O& f: u
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
+ z1 v6 @0 {, p  R4 d* W8 X; z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。
; t! I0 j5 h' o* X& x, K& k3 w/ ?tvb now,tvbnow,bttvb2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
: x2 Z5 q1 |: N' k公仔箱論壇易北河-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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