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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
7 b1 t) Z2 k# K0 N$ N4 N/ d公仔箱論壇
8 \( W+ ?& b* U6 i! s6 X' eIf you are not a Physics person, read on and learn a fact of physics.   1 q" J0 ^, A& E) ]' s
AMAZING!
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/ O! M' l+ S2 P; m8 ]2 a6 F7 j# m2 o5.39.217.76Even after you see it, it is still hard to believe!
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4 H2 @- v' n! P- XMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
0 u9 S- ?8 w: ]( u" M  R: ZThis 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。! N. M2 c3 R' H2 _
It is located in the city of Magdeburg, near Berlin.
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。  b$ |+ w" v! i$ H( b- W( K. `+ n

- ?: Y( N3 Q$ @  }, I" VThe photo was taken on the day of inauguration.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。, d9 Y$ [/ {% {+ T  A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76. b% \4 Q! R$ I! y# l& G
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 P' a5 ^+ H" K
Question:
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& L0 ?; G+ m  B7 e1 N- C8 J5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# C. w9 }& b" l" t. H  t5.39.217.76Or just the weight of the water?
. P8 m* V  _& T3 @, N, d) lTVBNOW 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。; z7 }8 N" ^+ |" v: @" z" Z
Answer:
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/ b$ S( D% g8 i* L; m2 k: `公仔箱論壇It only needs to be designed to withstand the weight of  the water!
' l5 m+ W2 l5 |: LTVBNOW 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

2 U6 o1 X: I/ y; m' c, B5 A公仔箱論壇: Y) D9 R2 |; o& ?2 E/ [

! A6 h. a  F; Y4 x5.39.217.76
The Incredible Magdeburg Water Bridge in Germany
3 ?" x2 [% _7 A9 K# e8 tThe 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. 5.39.217.760 y' u1 O  \  d

  N$ n) ]  u  {& e% SConstruction 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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' l2 M" D5 o; Y3 Ptvb now,tvbnow,bttvb
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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。$ ^' Z1 r3 W' Z' U$ P

; y/ l; T! L2 X" W8 B) |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。
  z( I% d( Y! J+ f) P4 Atvb now,tvbnow,bttvb
& `4 D) ^; N" J- E) K! }  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。tvb now,tvbnow,bttvb, G8 z# \" `/ H, h+ ]6 i) ~
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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tvb now,tvbnow,bttvb3 }  F3 {0 m1 U( u: c( p5 _
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇, v1 \2 F5 e9 J: Q. w
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
0 V" T& n% N5 Q1 L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。
: L1 d% y/ L& L0 `6 d  L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。3 M. \' q4 Q& {6 l5 [
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 e$ `, C) o# W; Q, N5 `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。 7 X( X5 C! {4 d/ ]
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。% g4 n2 ~5 P9 a0 ?
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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