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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.   
4 w- m2 ?( z+ C* b. g* IAMAZING!
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5 N/ O+ R, d" i' K5 Atvb now,tvbnow,bttvbEven 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! 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 e0 P- ~2 {# G; \9 W
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 x, m6 _* ~- B# AIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
9 b; i( Z4 Y( O5 q4 Q4 DTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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! x' L2 K/ c* J6 F4 ttvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
  B) }' u4 {: {! pOr just the weight of the water? + R9 \) G6 U- y

8 }) f- L9 z" E3 g" w5.39.217.76Answer:

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It only needs to be designed to withstand the weight of  the water!
3 C: _" B: h7 QWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded

" q% R8 ?; Q3 `  W- }/ ^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。
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The Incredible Magdeburg Water Bridge in Germany
8 n" z/ T7 A' C2 Z* 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。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.5.39.217.76) [9 X9 B" ?% x% p  {6 M; ~
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.
9 l9 w& F* }+ S$ n) {- ^3 [* 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。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。, Z9 J5 f9 {2 `3 s
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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7 `7 d/ c! @: M  _公仔箱論壇5.39.217.76# H+ w( }7 L! z5 a# E

3 h/ K0 b- s" ~- f' I6 O' |% `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。公仔箱論壇$ U( Z/ T* B* D- N; @9 g2 k

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* N; [6 O4 h1 btvb now,tvbnow,bttvb公仔箱論壇/ P- R0 ^  {' R8 ]$ H! }

& t; v! u. D/ 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。
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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
% k, M9 u2 K4 H+ U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tvb now,tvbnow,bttvb/ A3 }$ T" N( Y3 [
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。tvb now,tvbnow,bttvb( E5 }7 \8 f8 D) H) _: ?3 L7 Q) {1 Q
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。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 l8 i( X
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。
+ u+ v* j! u/ T3 F. N8 B. R; U1 L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
: E! D+ J# k$ g* v. ptvb now,tvbnow,bttvb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。
  G) ^# l1 u, A" c; W2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和0 b, h$ s, k( V9 _; u) K
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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