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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 C( U$ S4 g# \/ U8 D3 X
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If 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。( p% ~' J  P/ t5 a
AMAZING!

! Z: k: v7 V4 T. ~# [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。
! o0 ?7 g& c- `8 J" j3 }6 |Even after you see it, it is still hard to believe!
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& x/ G4 o6 J. m) H5.39.217.77:8898
; r: D5 O. w0 @$ v9 XTVBNOW 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! * }+ m: ^9 o6 D8 ^
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
0 Z# O& V- w9 h, b, D; [6 U& }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。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, l2 s9 h; [% M$ ~( T9 M
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。. g( A# T+ n9 R) F
The photo was taken on the day of inauguration.
( E; j: W9 j6 M" C0 I: v5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb8 A. B8 `, P0 v
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Question:

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+ ^; V" S3 @' j2 _# \+ ptvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 J: i# d  I2 ^: J9 K& z1 Ytvb now,tvbnow,bttvbOr just the weight of the water? - r. A" U& E3 e9 Z: K5 W
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Answer:
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It only needs to be designed to withstand the weight of  the water!
" y; I0 P# H4 y7 z! |; s4 Otvb now,tvbnow,bttvbWhy? 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 Germany公仔箱論壇' z; i: K, B* X& j
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.
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1 l. d4 ?# Z* j( t9 jConstruction 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 G" t6 ~6 g) N4 }" ~( ~, e( HTVBNOW 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5.39.217.77:88981 V9 O+ E" O6 n. B/ L! }1 n; G
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇. a3 R. b! e' I
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
( U1 u* x. ?8 f  X% _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。
  L. u4 T9 K; o! O0 w5.39.217.77:8898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。% A4 k3 `' E0 M9 ~& a( J$ J' V
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
6 J/ N; `+ l* k$ U! |5.39.217.77:8898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。 tvb now,tvbnow,bttvb" E8 `7 g  x; A$ p; `# _; B
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
+ _2 F9 ~& Z1 ^$ f  ^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。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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