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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 5.39.217.76; b3 _0 b* U  m3 u
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If you are not a Physics person, read on and learn a fact of physics.   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。8 ^/ S6 s* @; P* u7 x
AMAZING!
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。, Y+ A% {; e/ p) Y
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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。2 |; O4 l9 Z% m8 P# |/ B
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇" w9 i* Q1 z! d3 F5 o, X: F
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. y7 e& i0 }  t6 d* R9 ^
It is located in the city of Magdeburg, near Berlin.
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. c  D) x9 k4 p5 f9 xThe photo was taken on the day of inauguration.tvb now,tvbnow,bttvb8 q; f  }) H' Z2 D/ Z0 D
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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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,公仔箱論壇( I+ f. x+ l$ i2 V) a0 f" R7 M
Or just the weight of the water? ' M, Z8 {, _1 [! O: L! L
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Answer:
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, c+ c  W- Y/ y2 r! V6 |It only needs to be designed to withstand the weight of  the water! 公仔箱論壇) h: v* N: V1 N( \+ T. m% W# {
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
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。" C7 d- F/ f7 M! @1 `# W
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb" p8 s: P9 N2 w" t6 p& Q- J3 [
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.
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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.
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' `& v' O1 \) }6 k) OTVBNOW 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。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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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
: ?. E! ?0 t9 q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
$ t3 {0 m) K& F4 U8 e5 N, b9 b6 F! ~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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。1 I  z3 B+ _5 a6 a' ~$ B/ b
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。! ?1 X7 N1 m- q3 b9 Q# w3 o8 _9 j
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。
- }: ]2 i0 h; p) P9 d8 Y' P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 萬5.39.217.76/ D0 S, \: W9 n) p8 s
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。 : O8 s! x! s/ U8 ]. m8 a. \  N: j
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
# M- j7 u9 [& U6 u  Rtvb now,tvbnow,bttvb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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