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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 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。6 b8 V) n6 U* @2 @2 p

  s! V8 _+ J' R( |  T# `tvb 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。; u9 O$ ?" r: s$ g9 L
AMAZING!
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! M. k& W# c/ h, T) _& ttvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!

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* g$ \  n7 C6 R4 ~8 y% k: JMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。# t* E* l! U+ G, o7 O
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
7 ^0 t! {8 s* c0 N  y( }公仔箱論壇It is located in the city of Magdeburg, near Berlin.

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6 B2 {( ~4 d- A公仔箱論壇The photo was taken on the day of inauguration.% ]: D5 p* q0 l1 @& a) Y! H
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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2 h; k6 ]0 M7 [tvb now,tvbnow,bttvbQuestion:
tvb now,tvbnow,bttvb# F$ M. l; a  ]1 ^6 J0 ]4 ?$ j/ I  C; k
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ z4 w7 |( V1 r' I) f3 n8 ^* B- @tvb now,tvbnow,bttvbOr just the weight of the water? tvb now,tvbnow,bttvb/ ]! W; R/ I( K4 h' h# V1 @

2 D8 q8 r$ L- l" T0 Dtvb now,tvbnow,bttvbAnswer:
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It only needs to be designed to withstand the weight of  the water!
5 F. m. S" Q& N/ w4 t0 X; K2 GWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
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。: e' {3 y$ H' Y3 W! e* H& A) ?5 G

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The Incredible Magdeburg Water Bridge in Germany
- v' z7 R+ z% [3 F- |3 h, uThe 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,bttvb6 w3 i1 W% H2 i0 Z! Y
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.
+ ^4 V8 e. Z: ~8 n: T! u1 a3 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。
3 f  A' a8 M/ H7 w9 U$ W  ~. ^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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tvb now,tvbnow,bttvb! T4 Z  E/ x/ \
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。( @. `4 J4 i# n& W# N- Y# K1 `, A
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。# q# B0 M" [; Z3 {6 b  [

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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,bttvb" f" v6 H7 f. K& k. _
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇公仔箱論壇' K8 f! b1 g, i" w6 D
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
$ U7 L' r& d- x& r2 ?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。tvb now,tvbnow,bttvb$ l% H$ i  x5 ]/ Y: H/ ~1 i
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。* Q( {! s0 Z9 ]5 W! H' U) F$ u* W1 t
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
+ B) H) o8 E4 R* a* m& I1 C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。
5 w0 a1 y2 s& C$ q# ^* w+ ptvb now,tvbnow,bttvb2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和: r  Z5 }# h4 _% M+ X7 ?8 W
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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