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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.   公仔箱論壇3 F8 z8 }7 N4 l$ T9 A- ?
AMAZING!

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6 O8 `9 Q8 N( \" ?5.39.217.77Even 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!
4 o& E, i; U/ Z; `0 G% stvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 1 {( l8 B# p+ H% n7 `- [4 ]5 |
It is located in the city of Magdeburg, near Berlin.

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4 G- O0 v7 f4 a0 C0 Q8 M4 atvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
3 V) x/ G$ S3 I2 j3 S1 p3 {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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.2 [, y; {( A! u- f- [) o4 V

9 }$ {. c! ]- 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。Question:

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+ q& |0 F; F( l5 T& E( B9 a7 SDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
7 U$ p5 ]3 Y1 kOr just the weight of the water? 5 B/ I# I" s0 W7 j; e

8 B. A3 Y& `/ L3 vtvb now,tvbnow,bttvbAnswer:

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7 J" G  ?  Z+ o4 N6 o, o5.39.217.77It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb5 P* m* o  Z, f- D- S3 N9 K4 s9 d
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 Germanytvb now,tvbnow,bttvb0 Y; s: K5 B- q. S: |# [4 ]
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.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。; V3 [, {5 L7 T* q. c) Q% @' t7 Y
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. tvb now,tvbnow,bttvb8 T6 Q7 f& }- }' B: `( }
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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。9 N6 H9 P' A. f0 x, ?) s, ]
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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: t* [1 R: Y! o9 F
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
* c# D, F) D" L; {4 B: z6 L也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
  k3 F$ L  T) l6 r  A# w5 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。
5 D" `% N6 d3 q5.39.217.77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。
& g  E8 E3 Q1 J5.39.217.77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; C7 x# C7 ]2 e' o
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。
7 C: C& G# N' U" [" D( e, G2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇0 v5 U' |8 F& U& Y, l- R& P
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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