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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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. n- r6 t0 h& Y1 [! b: 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。If you are not a Physics person, read on and learn a fact of physics.   tvb now,tvbnow,bttvb+ T0 s! O5 D* n- [  J& f" Y
AMAZING!
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2 |  L+ c' w6 T, o( E' Q5.39.217.76Even after you see it, it is still hard to believe!
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% D6 y; a9 m2 s) G# t( YMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! # X' Z- P1 c  M
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # V% D  x! l1 q, V; z0 O9 L+ @, O
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.公仔箱論壇8 p1 j3 |- @5 n( H: R
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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/ v3 R% V6 H4 [; N, T4 d# \tvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.766 ?0 z. _' ]7 k7 u
Or just the weight of the water? tvb now,tvbnow,bttvb  e# N' S+ j; e, @4 }: z' W6 X
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Answer:

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It only needs to be designed to withstand the weight of  the water! 6 t9 E5 G& l6 l4 ^
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。8 @9 o; M0 E3 u; m' ~
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." D# l  {0 A! 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. 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。$ A* F+ y7 x# P& h
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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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% b' _5 }  T) 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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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: N) e# `8 c5 M3 _; Y. ^! 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
  f3 @; ]' O- e+ N  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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
: G' I6 k7 \% w3 h3 g% e% 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。5.39.217.76- e: F" o( Y0 q* ?1 c+ ]0 E
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。
" A5 ?5 l! \! q: F" o) b公仔箱論壇於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
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5 A  S6 `; b$ a, f# r/ M0 f5.39.217.762003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
! [' `4 b- U5 H$ O$ U5.39.217.76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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