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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.   
" [1 f! g" Y, U8 U% v, `- wtvb now,tvbnow,bttvbAMAZING!

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Even 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 _9 c0 ~; t/ p; o; jTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。) m( n) j" M5 M" Z  d8 y( u
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration." h/ }) S9 e  T9 r& {6 s/ f' c
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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公仔箱論壇$ o# X6 g- V" |3 g
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5 W% y8 o9 d& I% ~6 U& @
Or just the weight of the water? tvb now,tvbnow,bttvb. G+ C8 Z3 T: m

) k* E, B, q" J% T  _+ {! wTVBNOW 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。Answer:

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It only needs to be designed to withstand the weight of  the water! 0 m! l3 O4 M4 ?9 O9 U# c/ 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
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。3 a( G) s' f9 W8 i6 l& u
公仔箱論壇9 Q  ]5 w' ~5 H
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The Incredible Magdeburg Water Bridge in Germany
# i: M# }8 Z/ J/ @0 ]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。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. 5.39.217.76' S2 _5 D: b% `/ H/ _% g0 W

& o1 h+ `4 O8 \/ Ktvb 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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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。$ u. C& a; a/ i1 A, L* Q
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% a, U- P5 H4 B. G% ATVBNOW 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。/ K$ {) ~4 u- \
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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
1 D3 R/ |: ]  C# q/ N) P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- i! a: ITVBNOW 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。
4 v+ T+ g! U6 |  H; e  |tvb now,tvbnow,bttvb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。" R' D5 a# o% \  w
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。
& }+ x* ~, M; U9 r: c! |- eTVBNOW 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。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 P  ~: O; c8 _4 [8 U! T
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。 公仔箱論壇! u% v/ J  b$ ^- E
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
& K* v* C8 Q) F; D+ k6 n5.39.217.76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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