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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 0 i% ~5 w; {9 d

8 W, C- m" B9 o* f+ r/ Z: xtvb now,tvbnow,bttvbIf 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。; S5 E8 X$ K3 x1 L
AMAZING!

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Even after you see it, it is still hard to believe!
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 M( N  d/ U: ^5 t8 Q; M: z
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6 z" J6 r9 W3 n5 L3 C. Q5.39.217.77:8898Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
& J$ R9 E0 E, k2 L1 v0 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
* K+ ^5 o/ g' MIt is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
% y) B5 _  }6 q% v6 yTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.1 _/ w- m  R; F6 X

1 K% t& ?) L. t) V3 O2 U公仔箱論壇Question:
5.39.217.77:88989 g" X, p6 [+ r+ A3 Z

. w- R3 p+ s% lDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
* n, f! _4 g  x/ x) YOr just the weight of the water? 6 p1 @/ v1 g# B9 w

" Z9 O! Y! P6 `" W+ f& ~5 Atvb now,tvbnow,bttvbAnswer:
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0 Q1 C0 A2 I8 `3 P  [4 XIt only needs to be designed to withstand the weight of  the water!
! `" _1 N- N3 o& H  h公仔箱論壇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

* {% y( v1 T0 [4 b* 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。
0 b+ h$ V8 R: f+ q公仔箱論壇

$ r5 T7 n' |, ^; K/ r2 }/ 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。
The Incredible Magdeburg Water Bridge in Germany
6 |4 x# d, ^" ~5 A6 [( r, J7 O- dtvb now,tvbnow,bttvbThe 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.tvb now,tvbnow,bttvb2 r5 {7 W7 x6 P8 o, }1 O
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. tvb now,tvbnow,bttvb% m2 c& T) G4 y# u/ s$ l

7 }- ]% Z5 H: l& }( T6 Y: [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。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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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。/ o1 d- U8 A# C3 B& X" P

) r4 {3 G( u7 atvb now,tvbnow,bttvb5.39.217.77:88988 i) ~  H6 @* c  j" w
公仔箱論壇- g8 f: K) Q1 l0 d# h
5.39.217.77:8898- J, j" g7 L2 n9 z7 ^

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9 ?2 \) @* G8 z' _6 O$ 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。
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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# q( o+ E: X% F0 ?+ T3 e
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
; o9 I6 r+ y6 I% \2 c; `3 O) L' t也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
# w4 L1 w: T% a) D  b8 Z公仔箱論壇隨後的冷戰時期,德國分裂,該專案被東德政府無限期地擱置下來。
  i! j$ k0 m" I- G3 b7 R  q1 \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$ P8 |8 f* R- w. ?  V7 \! W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
1 c- `7 P* g; [+ h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。
; y# }  B- `8 |- \" f2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
0 y5 x, k! K8 H1 Z7 r7 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。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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