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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
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If you are not a Physics person, read on and learn a fact of physics.   ( ?) K- [$ k  S1 b
AMAZING!
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Even after you see it, it is still hard to believe!
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* P" N" R/ V+ f. H) r4 zTVBNOW 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 s: y' q1 G# `0 R8 H7 k' |  f公仔箱論壇Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
' c% \0 q  x" a( d1 v8 `公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇% L. _2 n3 @% i9 K# a
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
9 l% `' x5 Z8 D3 y5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
; {/ x. ^/ y( d7 f" W. ZTVBNOW 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 q& P- N* F$ Y, |' fQuestion:

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$ W) y$ l% y- ^/ N* ZTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
" O& d5 q4 n/ E7 U& F) 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。Or just the weight of the water?   U% ~: K8 o5 @! S
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Answer:
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。! F1 k) P0 R- I1 @9 O* a
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It only needs to be designed to withstand the weight of  the water! 5.39.217.76/ P/ i, ], x" T
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
* e. g2 `' J2 ~1 z8 ]5.39.217.76The 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.# U/ I& _: ~/ {5 j$ 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. 公仔箱論壇% a9 F% z$ K# F) _3 x- a

- r# G/ _5 \/ u7 f+ t, ?公仔箱論壇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。& k( K( v  [4 }* i( @( p

3 N2 m5 O% A2 h8 \8 c8 I+ o- q( rTVBNOW 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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: D6 B0 H' K  J& {& UTVBNOW 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& C$ M8 ~$ e; h* `
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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。- ]+ `$ r* J% \. F8 Y
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1 L. @1 |" f; |, |' H
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。公仔箱論壇& ?- l* M) e2 h# [( w9 h
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。5.39.217.761 U4 Q. O" u2 p8 |! n$ P7 S: ^( g( O
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。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 F  t/ O$ O0 D$ a
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 萬2 y! B1 @7 C3 ]( }5 ~' K& 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。
1 s0 T, Q/ T6 E7 K2 JTVBNOW 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。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
3 [4 f/ w1 g9 m, H( `7 T" r7 H! z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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