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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
! U5 u2 W7 p6 i1 G公仔箱論壇公仔箱論壇+ J# s& S: L* C/ D  p7 N# v; r
If you are not a Physics person, read on and learn a fact of physics.   www.tvboxnow.com9 D  N) W* K' I
AMAZING!

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Even after you see it, it is still hard to believe!
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2 j, Z9 Z' d5 d4 X# dTVBNOW 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+ @3 V9 I1 Q: `tvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: ?+ |7 {7 n  v* Iwww.tvboxnow.comThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。- B- \" [6 _$ F3 x% l  `
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
; Z1 c4 X/ k% w' ctvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.) A% X2 X2 m3 ?" x3 A6 N9 i' I3 L
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,  n# s9 s' P: P8 `4 z9 g
Or just the weight of the water? 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& B4 I" `3 l6 E+ o
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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。9 Q9 g' t6 m- ]/ H# R

' ~# y, W* ^) k  i1 c, w% vTVBNOW 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。It only needs to be designed to withstand the weight of  the water!
9 I- g4 \: j  ?1 T公仔箱論壇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
9 a/ a/ [9 Y# ?: g6 l' x0 vThe 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. & c: |) Z. ~2 O; ^$ @

9 F! Z( b0 c5 z) B4 R& y4 wConstruction 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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; ~7 v! V) _, \  t. [+ R  q4 FTVBNOW 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。, F2 P8 e( g. v8 n3 d. l6 f- l
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。! {# @" S5 u  F4 Y9 d( c" l" q9 {

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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
. ?' c' V( v! j4 J公仔箱論壇連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇www.tvboxnow.com$ N) I) S6 }9 t* l6 U+ P: J
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。# L8 v; q8 W; }' D& H3 f
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。: B' c0 X: Q1 \
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。
/ R7 o4 r  b2 t! Y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
+ ^: g0 ]! I" R4 ~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。 www.tvboxnow.com& L+ g  p# i; q$ 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
" z  j+ w' `! k2 F) A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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