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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 公仔箱論壇9 N$ R9 Y' `; j% ?) n2 b7 q! ~
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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。0 v, X! {+ l2 J* p, I! W
AMAZING!
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! @2 S) c% F" a& i! 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。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。0 S3 Q; p. Y+ s- g) s

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: e  h. P/ G0 z3 z5.39.217.77:8898Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!   A" {  z) `  ~2 w  l
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
& v4 K* L9 Y( q7 mIt is located in the city of Magdeburg, near Berlin.
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7 t0 B2 `/ n. Z$ t' q8 zTVBNOW 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 photo was taken on the day of inauguration.
5 V# S) y+ d) p0 [To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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" T7 ?5 K! ^6 l; {; Z( G( h公仔箱論壇Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,0 u8 o; B* T% L) a
Or just the weight of the water?
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, i3 ]8 T1 P3 {* i5 ~% h2 tAnswer:
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- w0 i' `( v

  T! K2 J' q, s/ K9 d# y1 K$ aIt only needs to be designed to withstand the weight of  the water!
9 K4 E; }5 E6 e5.39.217.77:8898Why? 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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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。1 _/ F0 p# O; V* ?
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。+ s, C) c. d0 V+ j+ j5 F4 Q& U
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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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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/ M5 V) C: M% I; u/ UTVBNOW 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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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。( Q7 C( E% e7 S+ q4 l

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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
2 E/ L0 F. p+ @% D( B5 J, V連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
; U6 l1 @: x6 n3 H4 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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
7 A2 R3 m* }% ]  s) [" a# ^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。
, @' t9 {2 s% m3 m' htvb now,tvbnow,bttvb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。
0 P; k  x+ ]6 @7 @tvb now,tvbnow,bttvb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- Y( I1 W- f6 A8 O5.39.217.77:8898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- R2 Q# R- \$ F! K2 h, ?
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇" V+ j! U# D$ s& V8 O" _9 n
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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