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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 , N5 c7 F2 D: i' P: ~3 S- @

) l/ S  K4 U3 P: QTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇% ]6 S7 c8 A' h! k% X
AMAZING!
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Even after you see it, it is still hard to believe!
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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。, O+ x3 R3 j" Y8 b. b

8 ]6 P/ @$ D+ }; F* {9 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
+ W% ], ^# v1 c1 w* i5 h% TThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ! f  k" h1 x# w& _7 Y
It is located in the city of Magdeburg, near Berlin.
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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。5 U6 z; L& k% Q; Y2 {1 h1 E: J% `
The photo was taken on the day of inauguration.
5 E' k- i1 V- H6 b5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb8 g+ z% x" e, i: u! q

, u: K$ E' S& O- K- \7 Jtvb now,tvbnow,bttvbQuestion:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
6 d  |; _, \" n. C  v' e1 |; d5 ~tvb now,tvbnow,bttvbOr just the weight of the water?
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Answer:

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It only needs to be designed to withstand the weight of  the water!
/ x  N1 U  l$ i+ P0 z% o! _. KTVBNOW 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。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

9 j, H- w& N3 yTVBNOW 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
" u# |: b. {' A4 E* ^2 Z9 CTVBNOW 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.公仔箱論壇& z- O1 s& y5 X1 V
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- d  m9 Q$ ]& a+ x  g
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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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. ]9 K( u7 M/ X" q3 J& o公仔箱論壇
2 v* x  m3 E( u& x1 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。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。, v6 I9 l- c$ ~; H" N2 N$ N
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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
2 h7 ]0 m. W3 U# B1 D. y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
$ v! C5 W$ Q- b  _; q5.39.217.76也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.766 g: L1 T! v- ]8 Y  h0 C
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。
- \% t* o& d2 |tvb now,tvbnow,bttvb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。5.39.217.76% W7 ^2 A- E4 {3 m; b
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! N0 T  t& b+ m% J+ K: b5 F' w& R" t2 J" |
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。
) ~9 w% N# N: ^$ J1 O3 e2 z8 i7 a. m5.39.217.762003 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 p3 ]8 l7 Q% A7 g& [9 E3 f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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