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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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- p& m. X. d( U' @  E8 l. i5.39.217.76If you are not a Physics person, read on and learn a fact of physics.   
5 a  f% c' D+ C3 MAMAZING!
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3 Z; P! _: X3 X4 }, \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。Even after you see it, it is still hard to believe!
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0 R  t( s1 e* j9 F" T9 ^' 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。
3 N$ S9 {$ N) CMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇# G& }# Q+ x" b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 K5 D! o4 M! y. M, N  \8 Ttvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration., H+ H4 S0 Q1 m$ Z0 W6 F$ R$ c
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.; o% Y( i2 w& G: k

$ R* o0 |! y4 \1 u) f' uQuestion:

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! b/ ~8 b' l; _4 etvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,7 w: j% ?* `8 f4 U
Or just the weight of the water?
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) S2 B  g/ `8 F公仔箱論壇Answer:
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* ~( T- F0 e) C# n/ v' LIt only needs to be designed to withstand the weight of  the water! 公仔箱論壇/ h6 w/ f0 s3 U* Q' C& \9 H+ ~
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 GermanyTVBNOW 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。  x. ^0 L5 Z2 ?" }* t
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( m& k5 r3 L2 l8 d& n
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. 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 c& Y$ L6 Q* z9 l9 d4 _# b* H

+ m& t2 |9 D2 ctvb now,tvbnow,bttvbConstruction 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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5 E3 ?+ X8 K; F7 i/ D1 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。
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$ f' C9 N  m0 ^6 ~% S9 x1 \: ]7 [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。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。  P+ K' F  `5 u; Q& m. }
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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3 {, B: Z+ F: F4 I
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
# t$ B) ]  [3 |6 a1 Itvb now,tvbnow,bttvb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% f6 P0 h# Q6 ~$ f- N3 s4 g* r' G( j
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。
0 \1 h! x2 V" m# |公仔箱論壇德國重新統一後,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。5.39.217.765 P/ N' ^- L  x
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* J, ~8 H1 c5 `0 T# f6 g
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。
# M2 S' I; W; }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
' g! N8 P- I+ W7 I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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