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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
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' i" ~/ _3 V2 J! ]2 Q. c9 U- W3 n公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   
+ n( L0 d( N, f4 ^( q5 q1 `; {3 }* x7 EAMAZING!

; K) i; o! p* v; J6 c公仔箱論壇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。9 \) H7 N5 p$ T0 ~& A: H$ s. d
Even after you see it, it is still hard to believe!
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9 V7 S0 K2 S' H4 C) ]公仔箱論壇Magdeburg 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。+ x% F% u& R& Z
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb, e0 e2 _! ]* g) y, y  c
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.$ A+ g& @5 K/ s; @$ d5 b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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$ u+ P9 F8 r, L$ z0 E3 c( k8 ]tvb now,tvbnow,bttvbQuestion:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb6 J+ f! `. w& }) H7 u4 H8 x
Or just the weight of the water? 公仔箱論壇. A( L* \& o, l4 p

# |, ~0 {. D& X8 J7 UAnswer:
5.39.217.76- {5 R- Z& @6 k0 `) M  K
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It only needs to be designed to withstand the weight of  the water!
* g4 H; X6 N; s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

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The Incredible Magdeburg Water Bridge in Germany
$ `9 D. q% W' e  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。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.7 Z' k: N# j: I/ {5 O0 }9 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. " r* H6 H' a( ~
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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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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。5 k* ?8 I" @; b. m- y( v$ I0 H
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公仔箱論壇5 ?7 y, V. E( c- R$ K: X* v' 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。6 j4 `; x" D( U) o3 P1 Q! K# t

* t# v+ ?' b9 F; 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。tvb now,tvbnow,bttvb/ r, `% X" x& a5 A7 q

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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( X( K4 J8 h" V1 Q) {
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
- D* @- [  K1 A4 a也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
2 [: P' O$ t/ Ltvb now,tvbnow,bttvb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。公仔箱論壇1 d/ Q0 Y6 E3 g! y2 ~
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。
% w* z* O) D# C6 f3 V! o% B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
% Y: |! i. T9 p0 u/ t5.39.217.76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 Q# [! ?, m- P2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和9 k- H9 _+ |) v
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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